{"id":5567,"date":"2026-01-17T11:51:50","date_gmt":"2026-01-17T10:51:50","guid":{"rendered":"https:\/\/rock-the-prototype.com\/uncategorized\/application-programming-interface-api\/"},"modified":"2025-03-10T16:30:39","modified_gmt":"2025-03-10T15:30:39","slug":"application-programming-interface-api","status":"publish","type":"encyclopedia","link":"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/","title":{"rendered":"Application Programming Interface (API)"},"content":{"rendered":"<p><\/p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\"><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1144px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Inhaltsverzeichnis<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #ffffff;color:#ffffff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #ffffff;color:#ffffff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#What_is_an_Application_Programming_Interface_API\" >What is an Application Programming Interface (API)?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#APIs_%E2%80%93_Basics_and_purpose_of_an_API\" >APIs &#8211; Basics and purpose of an API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Types_of_APIs\" >Types of APIs<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Web-APIs\" >Web-APIs<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Types_of_Web_APIs\" >Types of Web APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#REST_APIs_Representational_State_Transfer\" >REST APIs (Representational State Transfer)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#GraphQL_APIs_Alternative_for_REST_with_flexible_Request-Syntax\" >GraphQL APIs (Alternative for REST with flexible Request-Syntax)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#WebSockets_APIs_real-time_communication_via_bidirectional_connection\" >WebSockets APIs (real-time communication via bidirectional connection)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Application_areas_of_web_APIs_Why_where_are_they_used\" >Application areas of web APIs (Why &amp; where are they used?)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#RPC_APIs_Remote_Procedure_Call_APIs\" >RPC APIs (Remote Procedure Call APIs)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#gRPC_Google_Remote_Procedure_Call\" >gRPC (Google Remote Procedure Call)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#SOAP_APIs_Simple_Object_Access_Protocol\" >SOAP APIs (Simple Object Access Protocol)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#JSON-RPC_XML-RPC_%E2%80%93_Lightweight_RPC_variants\" >JSON-RPC &amp; XML-RPC \u2013 Lightweight RPC variants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#When_should_you_use_RPC_APIs\" >When should you use RPC APIs?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Programming_language_APIs\" >Programming language APIs<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Features_of_a_programming_language_API\" >Features of a programming language API:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Examples_of_programming_language_APIs\" >Examples of programming language APIs:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Low-CodeNo-Code-APIs_%E2%80%93_A_new_API_category_for_automation_integration\" >Low-Code\/No-Code-APIs \u2013 A new API category for automation &amp; integration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Database_APIs\" >Database APIs<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Types_of_database_APIs\" >Types of database APIs:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Areas_of_application_of_a_database_API\" >Areas of application of a database API:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Features_of_a_database_API_%E2%80%93_General_properties_for_all_database_types\" >Features of a database API &#8211; General properties for all database types<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#General_features_of_database_APIs\" >General features of database APIs<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#SQL-Based_Database_APIs_%E2%80%93_Standardized_Relational_Database_Connectivity\" >SQL-Based Database APIs \u2013 Standardized Relational Database Connectivity<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Features_of_SQL-Based_Database_APIs\" >Features of SQL-Based Database APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Examples_of_SQL_Database_APIs\" >Examples of SQL Database APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Use_Cases_of_SQL_Database_APIs\" >Use Cases of SQL Database APIs<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#NoSQL_APIs_%E2%80%93_Flexible_Data_Models_for_Unstructured_and_Semi-Structured_Data\" >NoSQL APIs \u2013 Flexible Data Models for Unstructured and Semi-Structured Data<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Features_of_NoSQL_Database_APIs\" >Features of NoSQL Database APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Examples_of_NoSQL_Database_APIs\" >Examples of NoSQL Database APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Use_Cases_of_NoSQL_Database_APIs\" >Use Cases of NoSQL Database APIs<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Cloud_Database_APIs_%E2%80%93_Databases_as_Managed_Services\" >Cloud Database APIs \u2013 Databases as Managed Services<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Features_of_Cloud_Database_APIs\" >Features of Cloud Database APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Examples_of_Cloud_Database_APIs\" >Examples of Cloud Database APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Use_Cases_of_Cloud_Database_APIs\" >Use Cases of Cloud Database APIs<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Graph_Database_APIs\" >Graph Database APIs<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Examples_of_Graph_Database_APIs\" >Examples of Graph Database APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Use_Cases_of_Graph_Database_APIs\" >Use Cases of Graph Database APIs<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Event-Driven_APIs_Asynchronous_Communication_in_Distributed_Systems\" >Event-Driven APIs (Asynchronous Communication in Distributed Systems)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Webhooks_vs_WebSockets_%E2%80%93_How_Do_They_Differ\" >Webhooks vs. WebSockets \u2013 How Do They Differ?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Operating_System_APIs\" >Operating System APIs<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Examples_of_OS_APIs\" >Examples of OS APIs<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-43\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Hardware_APIs\" >Hardware APIs<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-44\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_Documentation_and_References\" >API Documentation and References<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-45\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_Governance_and_Best_Practices\" >API Governance and Best Practices<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-46\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_Governance_Rules_for_Robust_and_Standardized_APIs\" >API Governance: Rules for Robust and Standardized APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-47\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Key_Principles_of_API_Governance\" >Key Principles of API Governance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-48\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Best_Practices_for_API_Governance\" >Best Practices for API Governance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-49\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_Lifecycle_Management_%E2%80%93_From_Development_to_Deprecation\" >API Lifecycle Management \u2013 From Development to Deprecation<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-50\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Phases_of_the_API_Lifecycle\" >Phases of the API Lifecycle<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-51\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_Orchestration_vs_API_Gateways_%E2%80%93_Differences_and_Use_Cases\" >API Orchestration vs. API Gateways \u2013 Differences and Use Cases<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-52\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Comparison_API_Orchestration_vs_API_Gateway\" >Comparison: API Orchestration vs. API Gateway<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-53\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_Testing_Monitoring_%E2%80%93_Ensuring_Quality_and_Availability\" >API Testing &amp; Monitoring \u2013 Ensuring Quality and Availability<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-54\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_Testing_Methods_for_Robust_APIs\" >API Testing: Methods for Robust APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-55\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_Monitoring_Real-Time_Surveillance_for_Stability_Security\" >API Monitoring: Real-Time Surveillance for Stability &amp; Security<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-56\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#API_development_and_reusability\" >API development and reusability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-57\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Legacy_APIs_and_integration_into_existing_systems\" >Legacy APIs and integration into existing systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-58\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Modern_API_Architecture_Security_Scalability_and_Efficiency\" >Modern API Architecture: Security, Scalability, and Efficiency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-59\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Architectural_Styles_and_Their_Relevance_for_APIs\" >Architectural Styles and Their Relevance for APIs<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-60\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#SOA_Service-Oriented_Architecture\" >SOA (Service-Oriented Architecture)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-61\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Relevance_for_API_Classification\" >Relevance for API Classification:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-62\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Microservices\" >Microservices<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-63\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Relevance_for_API_Classification-2\" >Relevance for API Classification:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-64\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Cross-Connection_to_API_Classification\" >Cross-Connection to API Classification<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-65\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Monolithic_vs_Component-Based_APIs_Architectural_Decisions_Compared\" >Monolithic vs. Component-Based APIs: Architectural Decisions Compared<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-66\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Monolithic_APIs_Stability_Through_Tight_Coupling\" >Monolithic APIs: Stability Through Tight Coupling<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-67\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#Component-Based_APIs_Flexibility_and_Scalability\" >Component-Based APIs: Flexibility and Scalability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-68\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/#How_to_Decide_Between_Monolithic_and_Component-Based_APIs\" >How to Decide Between Monolithic and Component-Based APIs?<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_an_Application_Programming_Interface_API\"><\/span>What is an <strong data-start=\"4\" data-end=\"47\">Application Programming Interface (API)?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"51\" data-end=\"353\">An <strong data-start=\"56\" data-end=\"99\"><a href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/application-programming-interface-api\/\" target=\"_blank\" title=\"An Application Programming Interface (API) is an interface that enables software components or systems to communicate with each other. APIs define which functions and data are provided by software and how they can be used by other programs.\" class=\"encyclopedia\">Application Programming Interface (API)<\/a><\/strong> is an interface that enables software components or systems to communicate with each other. APIs define which functions and data are provided by software and how they can be used by other programs.<\/p>\n<h2 data-start=\"355\" data-end=\"384\"><strong data-start=\"358\" data-end=\"382\">APIs &ndash; <\/strong><strong data-start=\"358\" data-end=\"382\">Basics and purpose of an API <\/strong><\/h2>\n<p data-start=\"385\" data-end=\"668\">APIs are used to ensure interoperability between software modules. An API abstracts the internal functionality of a system and provides defined <strong data-start=\"552\" data-end=\"570\">interfaces<\/strong> via which external components can access it. A distinction is made between:<\/p>\n<ul data-start=\"670\" data-end=\"838\">\n<li data-start=\"670\" data-end=\"763\"><strong data-start=\"672\" data-end=\"682\">Export<\/strong>: Functions that are provided by an API and offered externally.<\/li>\n<li data-start=\"764\" data-end=\"838\"><strong data-start=\"766\" data-end=\"776\">Import<\/strong>: Functions that an API requires from other components.<\/li>\n<\/ul>\n<p data-start=\"840\" data-end=\"1060\">An API is accessed via <strong data-start=\"878\" data-end=\"917\">clearly defined interfaces<\/strong> so that internal implementation details of the software can be changed or improved without affecting other systems.<\/p>\n<p data-start=\"840\" data-end=\"1060\"><\/p>\n<\/div><a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Spotify - Ideenfindung und Kreativit&auml;t in der Softwareentwicklung\" href=\"#\"><iframe class=\"lazyload\" style=\"border-radius: 12px;\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27100%27%20height%3D%27352%27%20viewBox%3D%270%200%20100%20352%27%3E%3Crect%20width%3D%27100%27%20height%3D%27352%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"https:\/\/open.spotify.com\/embed\/episode\/4vTUHpkIyUj9D3jOZMf9en?utm_source=generator\" width=\"100%\" height=\"352\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/a>\n<div class=\"fusion-text fusion-text-2\" style=\"--awb-margin-top:4%;\"><h2><span class=\"ez-toc-section\" id=\"Types_of_APIs\"><\/span>Types of APIs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong data-start=\"1065\" data-end=\"1083\">If we classify APIs according to a relevant classification criterion, then the accessibility of an API is the most useful classification criterion because it reflects practice very well. This gives us an API categorization with a clear logical structure. Such an API categorization takes into account not only accessibility, but also the technical level of abstraction &ndash; from highly abstracted web APIs to the lowest levels of hardware interaction.<\/strong><\/p>\n<p>Modern software development distinguishes between several API types:<\/p>\n<ul>\n<li><strong>Web APIs<\/strong> &ndash; APIs that are used via the internet and are usually based on REST, GraphQL or gRPC.<\/li>\n<li><strong>RPC APIs (Remote Procedure Call APIs)<\/strong><\/li>\n<li><strong><a href=\"https:\/\/rock-the-prototype.com\/en\/learn-programming\/programming\/\" target=\"_blank\" title=\"What is programming? When programming, a programmer creates a software program that can run on a machine. The code is created in one of the formally defined computer languages - which are countless, such as Java, PHP, C++ or C#, Perl and many many more.\" class=\"encyclopedia\">Programming<\/a> language APIs<\/strong> &ndash; APIs provided by programming languages such as <a href=\"https:\/\/rock-the-prototype.com\/en\/programming-languages-frameworks\/java\/\" target=\"_blank\" title=\"What is Java suitable for in programming? Java is very popular as the official language for developing Android apps. It is a general purpose programming language. This programming language is supported by Google and a large active community of developers.\" class=\"encyclopedia\">Java<\/a> or <a href=\"https:\/\/rock-the-prototype.com\/en\/programming-languages-frameworks\/python\/\" target=\"_blank\" title=\"Python is an object-oriented programming language. Python is currently one of the most widely used programming languages. Why you should program in Python...\" class=\"encyclopedia\">Python<\/a> to use standard libraries and external modules.<\/li>\n<li><strong>Low-Code \/ No-Code-APIs<\/strong><\/li>\n<li><strong>Database APIs<\/strong> &ndash; interfaces such as JDBC or ODBC that allow access to relational or NoSQL databases.<\/li>\n<li><strong>Event-Driven APIs<\/strong> &ndash; Message Queue APIs and Event Streaming APIs<\/li>\n<li><strong>Operating system APIs<\/strong> &ndash; APIs that operating systems provide to enable applications to access system resources such as file systems or network interfaces.<\/li>\n<li><strong>Hardware-related APIs<\/strong> (binary interfaces, drivers, firmware)<\/li>\n<\/ul>\n<p><strong>Alternative classification criteri<\/strong>a can of course be just as useful if required, such as<\/p>\n<ul>\n<li>Frequency of use &rarr; From common APIs (REST) to specialized ones (firmware)<\/li>\n<li>Protocol complexity &rarr; From simple (REST) to more complex (gRPC, event-driven, kernel APIs)<\/li>\n<li>Real-time capability &rarr; From synchronous (REST, GraphQL) to asynchronous (message queues, WebSockets)<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Web-APIs\"><\/span><strong data-start=\"1286\" data-end=\"1301\">Web-APIs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1304\" data-end=\"1477\"><strong>Web APIs<\/strong> enable applications to communicate with each other via the internet or intranets. They are based on <strong>HTTP<\/strong> and are usually provided by web servers. A <strong>web API<\/strong> is typically publicly exposed via the Internet and is therefore primarily intended for communication via Internet protocols; a non-public web API can be designed for an intranet, for example.<\/p>\n<h4 data-start=\"1479\" data-end=\"1509\"><span class=\"ez-toc-section\" id=\"Types_of_Web_APIs\"><\/span><strong data-start=\"1484\" data-end=\"1507\">Types of Web APIs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Web APIs form the top level in a classification according to the classification criterion of the highest level of abstraction.<\/p>\n<p>&#10145; Characteristics of web APIs:<br>\n&#9989; Use standardized protocols (HTTP, WebSockets)<br>\n&#9989; Are accessible via the internet or intranets<br>\n&#9989; Are used for communication between distributed systems (e.g. client-server models, <a href=\"https:\/\/rock-the-prototype.com\/en\/software-architecture\/microservices\/\" target=\"_blank\" title=\"Microservices are small, autonomous services that work together. The key to a good microservice architecture lies in the implementation of small and autonomous microservices.\" class=\"encyclopedia\">microservices<\/a>)<\/p>\n<ul data-start=\"1510\" data-end=\"2237\">\n<li data-start=\"1510\" data-end=\"1731\">\n<h4 data-start=\"579\" data-end=\"636\"><span class=\"ez-toc-section\" id=\"REST_APIs_Representational_State_Transfer\"><\/span><strong data-start=\"583\" data-end=\"634\">REST APIs (Representational State Transfer)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-start=\"637\" data-end=\"1015\">\n<li data-start=\"637\" data-end=\"704\">Based on: HTTP methods (GET, POST, PUT, DELETE)<\/li>\n<li data-start=\"637\" data-end=\"704\">Data formats: <a href=\"https:\/\/rock-the-prototype.com\/en\/learn-programming\/json\/\" target=\"_blank\" title=\"What is JSON? JSON, the JavaScript Object Notation, is a lightweight and flexible data format that is ideal for cross-platform data exchange. It is easy to read, easy to write and is supported by almost all modern programming languages. Thanks to its lean structure, JSON enables efficient data transfer and is indispensable for web applications and APIs.\" class=\"encyclopedia\">JSON<\/a> or XML<\/li>\n<li data-start=\"637\" data-end=\"704\">Architectural principles: Stateless, resource utilization via unique URIs, HATEOAS (optional)<\/li>\n<li data-start=\"637\" data-end=\"704\">Areas of application:\n<ul data-start=\"637\" data-end=\"1015\">\n<li data-start=\"637\" data-end=\"704\">Standard for web services &amp; microservices<\/li>\n<li data-start=\"637\" data-end=\"704\">APIs for public data (e.g. OpenWeatherMap, <a href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/github\/\" target=\"_blank\" title=\"What is GitHub? GitHub is a cloud-based platform for versioning software based on Git versioning. GitHub online repositories are very popular and therefore widely used. GitHub is a version control system\" class=\"encyclopedia\">GitHub<\/a> API)<\/li>\n<li data-start=\"637\" data-end=\"704\">Mobile apps &amp; web applications<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1732\" data-end=\"1977\">\n<h4 data-start=\"1022\" data-end=\"1101\"><span class=\"ez-toc-section\" id=\"GraphQL_APIs_Alternative_for_REST_with_flexible_Request-Syntax\"><\/span><strong data-start=\"1026\" data-end=\"1046\">GraphQL APIs<\/strong> <em data-start=\"1047\" data-end=\"1099\">(Alternative for REST with flexible Request-Syntax)<\/em><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-start=\"1102\" data-end=\"1539\">\n<li data-start=\"1102\" data-end=\"1329\"><strong>Features:<\/strong>\n<ul data-start=\"1102\" data-end=\"1539\">\n<li data-start=\"1102\" data-end=\"1329\">Clients can request only the required data (no over-\/underfetching)<\/li>\n<li data-start=\"1102\" data-end=\"1329\">Uses only a single POST route for requests<\/li>\n<li data-start=\"1102\" data-end=\"1329\">Schema-driven: Server defines data models &amp; queries<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1102\" data-end=\"1329\"><strong>Areas of application:<\/strong>\n<ul data-start=\"1102\" data-end=\"1539\">\n<li data-start=\"1102\" data-end=\"1329\">Optimized data queries for front-end apps<\/li>\n<li data-start=\"1102\" data-end=\"1329\">APIs with lots of linked data (social media, e-commerce)<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1470\" data-end=\"1539\"><strong data-start=\"1472\" data-end=\"1486\">Examples:<\/strong>\n<ul data-start=\"1491\" data-end=\"1539\">\n<li data-start=\"1491\" data-end=\"1514\">Shopify GraphQL API<\/li>\n<li data-start=\"1517\" data-end=\"1539\">GitHub GraphQL API<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul data-start=\"1510\" data-end=\"2237\">\n<li data-start=\"2181\" data-end=\"2237\">\n<h4 data-start=\"2263\" data-end=\"2347\"><span class=\"ez-toc-section\" id=\"WebSockets_APIs_real-time_communication_via_bidirectional_connection\"><\/span>WebSockets APIs (real-time communication via bidirectional connection)<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-start=\"2348\" data-end=\"2670\">\n<li data-start=\"2348\" data-end=\"2505\"><strong data-start=\"2350\" data-end=\"2363\">Features:<\/strong>\n<ul data-start=\"2368\" data-end=\"2505\">\n<li data-start=\"2368\" data-end=\"2467\">Persistent, bidirectional connection (in contrast to REST, which is request\/response-based)<\/li>\n<li data-start=\"2368\" data-end=\"2467\">Ideal for real-time communication<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2506\" data-end=\"2670\"><strong data-start=\"2508\" data-end=\"2527\">Areas of application:<\/strong>\n<ul data-start=\"2532\" data-end=\"2670\">\n<li data-start=\"2532\" data-end=\"2598\">Chat &amp; messenger services (WhatsApp Web, Slack WebSockets API)<\/li>\n<li data-start=\"2532\" data-end=\"2598\">Multiplayer gaming<\/li>\n<li data-start=\"2532\" data-end=\"2598\">Real-time dashboards &amp; monitoring systems<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 data-start=\"2677\" data-end=\"2753\"><span class=\"ez-toc-section\" id=\"Application_areas_of_web_APIs_Why_where_are_they_used\"><\/span>Application areas of web APIs (Why &amp; where are they used?)<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li data-start=\"2677\" data-end=\"2753\">Public web services (e.g. weather &amp; financial data: OpenWeatherMap, Alpha Vantage API)<\/li>\n<li data-start=\"2677\" data-end=\"2753\">Third-party integration (e.g. payment gateways: Stripe API, PayPal API)<\/li>\n<li data-start=\"2677\" data-end=\"2753\">Linking of frontend &amp; backend (e.g. web apps, mobile apps)<\/li>\n<li data-start=\"2677\" data-end=\"2753\">Microservices architectures (communication between independent services in <a href=\"https:\/\/rock-the-prototype.com\/en\/cloud-computing-cloud-technology\/cloud\/\" target=\"_blank\" title=\"What is cloud? Cloud or cloud computing moves data and programs from desktop PCs or servers in a company to remote cloud servers. Cloud storage therefore consists of a standard server network in a cloud data center or distributed across several cloud server locations.\" class=\"encyclopedia\">cloud<\/a> &amp; backend systems)<\/li>\n<li data-start=\"2677\" data-end=\"2753\">Real-time data processing (e.g. WebSockets for chats, live trading, monitoring systems)<\/li>\n<\/ul>\n<h3 data-start=\"1546\" data-end=\"1597\"><span class=\"ez-toc-section\" id=\"RPC_APIs_Remote_Procedure_Call_APIs\"><\/span><strong data-start=\"1550\" data-end=\"1595\">RPC APIs (Remote Procedure Call APIs)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Remote Procedure Call (RPC) APIs enable direct method calls on remote systems instead of working with resources. Unlike REST, which manages resources with CRUD operations, RPC APIs call specific functions or procedures directly, often with low latency and optimized data format.<\/p>\n<p>RPC is an established technique for distributed systems that has spawned various implementations, including gRPC, SOAP, JSON-RPC and XML-RPC.<\/p>\n<p>RPC APIs allow direct method calls on remote systems instead of working with resources.<\/p>\n<p>RPC APIs (gRPC, SOAP, JSON-RPC, XML-RPC) are defined here as a separate class, as they are neither classic web APIs nor pure programming language APIs.<\/p>\n<p><strong>Features of RPC APIs<\/strong><\/p>\n<p>&#9989; Direct method calls instead of resource management<br>\n&#9989; Efficient communication through compact data formats<br>\n&#9989; Often binary or structured communication instead of pure JSON data<br>\n&#9989; Can support synchronous or asynchronous calls<br>\n&#9989; Usually more powerful than REST for high-traffic services<\/p>\n<p>Classes of RPC APIs<\/p>\n<ul>\n<li>gRPC (Google Remote Procedure Call):\n<ul>\n<li>Uses Protocol Buffers (Protobuf) for efficient, binary data exchange<\/li>\n<li>Supports bidirectional streams &amp; HTTP\/2<\/li>\n<li>Areas of application: High-performance microservices, cloud services<\/li>\n<li>Examples: <a href=\"https:\/\/rock-the-prototype.com\/en\/it-infrastructure\/kubernetes\/\" target=\"_blank\" title=\"What is Kubernetes? Kubernetes is a DevOps tool for containerization and as an open source tool, the Kubernetes container orchestration tool manages the deployment, scaling and management of containerized applications.\" class=\"encyclopedia\">Kubernetes<\/a> API, Google Cloud APIs<\/li>\n<\/ul>\n<\/li>\n<li>SOAP APIs (Simple Object Access Protocol):\n<ul>\n<li>XML-based, uses WSDL (Web Services Description Language)<\/li>\n<li>Strong typing, but complex &amp; inefficient<\/li>\n<li>Often used in enterprise &amp; legacy systems (e.g. banking systems, SAP)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 data-start=\"2235\" data-end=\"2280\"><span class=\"ez-toc-section\" id=\"gRPC_Google_Remote_Procedure_Call\"><\/span><strong data-start=\"2239\" data-end=\"2278\">gRPC (Google Remote Procedure Call)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p data-start=\"2281\" data-end=\"2582\">gRPC is a modern, high-performance RPC technology developed for microservices, high-performance APIs and cloud-native applications. It uses Protocol Buffers (Protobuf) for binary serialization, resulting in extremely fast and efficient data transfers.<\/p>\n<p>&#128313; Technical features of gRPC:<\/p>\n<ul>\n<li>Uses HTTP\/2 for <a href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/asynchronous-communication\/\" target=\"_blank\" title=\"Asynchronous communication is not only a technical concept, but also influences the way software is developed and delivered. Asynchronous communication methods can improve the user experience by reducing the waiting time for the user.\" class=\"encyclopedia\">asynchronous communication<\/a> and bidirectional streams<\/li>\n<li>Compact, binary messages via Protobuf (significantly more efficient than JSON or XML)<\/li>\n<li>Bidirectional communication possible (e.g. streaming of data)<\/li>\n<li>Multi-platform support with auto-generation of client and server code<\/li>\n<li>Supports TLS encryption and <a href=\"https:\/\/rock-the-prototype.com\/en\/it-security\/authentication\/\" target=\"_blank\" title=\"Authentication is a multi-step process in identity management. Authentication in an IT system implements IT security functions that are realized by various security services and components.\" class=\"encyclopedia\">authentication<\/a><\/li>\n<\/ul>\n<p data-start=\"3004\" data-end=\"3277\">&#128313; Areas of application for gRPC:<br>\n&#9989; High-performance microservices architectures<br>\n&#9989; Communication between cloud services (e.g. Kubernetes API, Google Cloud APIs)<br>\n&#9989; Applications with high data throughput and low latency<br>\n&#9989; Streaming services or real-time applications<\/p>\n<p>&#9888; Disadvantages of gRPC:<\/p>\n<ul>\n<li>Not natively browser-compatible: REST uses HTTP directly, gRPC requires additional gateways<\/li>\n<li>More complex implementation than REST, especially for web APIs<\/li>\n<li>Binary format makes debugging more difficult, as JSON is more readable<\/li>\n<\/ul>\n<h4 data-start=\"1063\" data-end=\"1114\"><span class=\"ez-toc-section\" id=\"SOAP_APIs_Simple_Object_Access_Protocol\"><\/span><strong data-start=\"1067\" data-end=\"1112\">SOAP APIs (Simple Object Access Protocol)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>SOAP is an XML-based API protocol with strong typing and comprehensive security mechanisms. It is primarily used in enterprise and legacy systems, for example in the financial sector, in government applications or in SAP environments.<\/p>\n<p>&#128313; <strong>Technical features of SOAP:<\/strong><\/p>\n<ul>\n<li>Uses WSDL (Web Services Description Language) for the interface description<\/li>\n<li>Strongly typed with strict XML <a href=\"https:\/\/rock-the-prototype.com\/en\/learn-programming\/parsing\/\" target=\"_blank\" title=\"What is parsing? A parser is software that can logically check the source code in a software program and thus identify existing errors.\" class=\"encyclopedia\">parsing<\/a><\/li>\n<li>Supports transaction security (WS-Security) and distributed systems<\/li>\n<li>Uses HTTP or other protocols (SMTP, TCP\/IP, JMS) for transmission<\/li>\n<\/ul>\n<p>&#128313; <strong>Areas of application for SOAP:<\/strong><\/p>\n<p>&#9989; Enterprise applications with high security requirements<br>\n&#9989; Cross-system integrations (e.g. SAP, banks, insurance companies)<br>\n&#9989; Applications with complex workflows and strict compliance<\/p>\n<p><strong>&#9888; Disadvantages of SOAP:<\/strong><\/p>\n<ul>\n<li>Complexity: Implementation is more complex than with REST or gRPC<\/li>\n<li>Performance problems: XML is heavyweight and requires more bandwidth than JSON or Protobuf<\/li>\n<li>Less flexible: SOAP follows strict standards, which makes customization more difficult<\/li>\n<\/ul>\n<h4 data-start=\"3542\" data-end=\"3603\"><strong data-start=\"3546\" data-end=\"3601\">JSON-RPC &amp; XML-RPC &ndash; Lightweight RPC variants<\/strong><\/h4>\n<p>In addition to SOAP and gRPC, there are two other RPC protocols that are often used in smaller applications or special environments:<\/p>\n<p><strong>&#128313; JSON-RPC<\/strong><\/p>\n<ul>\n<li>Uses JSON for messages (lighter than SOAP, but not as performant as gRPC)<\/li>\n<li>Can be used unidirectionally or bidirectionally<\/li>\n<li>Is often used for JavaScript and web applications<\/li>\n<li>Example: Bitcoin JSON-RPC API for blockchain transactions<\/li>\n<\/ul>\n<p><strong>&#128313; XML-RPC<\/strong><\/p>\n<ul>\n<li>Predecessor of SOAP, simpler and easier to implement<\/li>\n<li>Uses XML serialization, but without complex WSDL documents<\/li>\n<li>Areas of application: Older systems and legacy web services<\/li>\n<\/ul>\n<h4 data-start=\"4258\" data-end=\"4307\"><span class=\"ez-toc-section\" id=\"When_should_you_use_RPC_APIs\"><\/span>When should you use RPC APIs?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<table data-start=\"4308\" data-end=\"5113\">\n<thead data-start=\"4308\" data-end=\"4370\">\n<tr data-start=\"4308\" data-end=\"4370\">\n<th data-start=\"4308\" data-end=\"4318\">API-Type<\/th>\n<th data-start=\"4318\" data-end=\"4329\">Advantages<\/th>\n<th data-start=\"4329\" data-end=\"4341\">Disadvantages<\/th>\n<th data-start=\"4341\" data-end=\"4370\">Suitable use cases<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"4432\" data-end=\"5113\">\n<tr data-start=\"4432\" data-end=\"4610\">\n<td><strong data-start=\"4434\" data-end=\"4442\">SOAP<\/strong><\/td>\n<td>High security, transaction capability, platform independence<\/td>\n<td>Heavyweight, slow, XML overhead<\/td>\n<td>Enterprise apps, banks, SAP, complex B2B integrations<\/td>\n<\/tr>\n<tr data-start=\"4611\" data-end=\"4825\">\n<td><strong data-start=\"4613\" data-end=\"4621\">gRPC<\/strong><\/td>\n<td>Fast, efficient, streaming, HTTP\/2, binary serialized<\/td>\n<td>Not directly usable for browsers, more complex implementation<\/td>\n<td>High-performance microservices, real-time data processing, cloud platforms<\/td>\n<\/tr>\n<tr data-start=\"4826\" data-end=\"4998\">\n<td><strong data-start=\"4828\" data-end=\"4840\">JSON-RPC<\/strong><\/td>\n<td>Lightweight, flexible, JSON-based<\/td>\n<td>&nbsp;Less powerful than gRPC, no standard security<\/td>\n<td>Web applications, JavaScript APIs, blockchain services<\/td>\n<\/tr>\n<tr data-start=\"4999\" data-end=\"5113\">\n<td><strong data-start=\"5001\" data-end=\"5012\">XML-RPC<\/strong><\/td>\n<td>Easy to implement, compatibility for older systems<\/td>\n<td>XML overhead, hardly used anymore<\/td>\n<td>&nbsp;Legacy web services<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p data-start=\"5115\" data-end=\"5290\">&#10145; REST is optimal for most use cases that are now web-based. At the same time, when it comes to efficient, fast or highly secure communication, gRPC or SOAP may also be the better choice for an API architecture.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Programming_language_APIs\"><\/span>Programming language APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A programming language API enables the use of standard libraries within a programming language. These language-specific APIs for developers are provided by programming languages to enable developers to access standard libraries and frameworks without having to implement low-level operations themselves.<\/p>\n<h4 data-start=\"593\" data-end=\"613\"><span class=\"ez-toc-section\" id=\"Features_of_a_programming_language_API\"><\/span>Features of a programming language API:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li data-start=\"593\" data-end=\"613\">Directly integrated into the respective programming language.<\/li>\n<li data-start=\"593\" data-end=\"613\">Enable access to data structures, algorithms, network and file system functions.<\/li>\n<li data-start=\"593\" data-end=\"613\">Standardized interfaces facilitate the development of cross-platform applications.<\/li>\n<\/ul>\n<h4 data-start=\"593\" data-end=\"613\"><span class=\"ez-toc-section\" id=\"Examples_of_programming_language_APIs\"><\/span>Examples of programming language APIs:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li data-start=\"593\" data-end=\"613\">Java API (JDK API): Access to classes for file operations, network communication and multithreading.<\/li>\n<li data-start=\"593\" data-end=\"613\">Python Standard <a href=\"https:\/\/rock-the-prototype.com\/en\/learn-programming\/library\/\" target=\"_blank\" title=\"A library refers to a software library as a ready-made collection of code that can be used to perform general software development tasks. Libraries are essentially a collection of functions and procedures that can be called up by other software programs to execute certain functions.\" class=\"encyclopedia\">Library<\/a>: Modules such as json, requests or os, which offer general functions for processing data and system interactions.<\/li>\n<li data-start=\"593\" data-end=\"613\">.NET <a href=\"https:\/\/rock-the-prototype.com\/en\/programming-languages-frameworks\/framework\/\" target=\"_blank\" title=\"A framework is a set of guidelines or rules that provides a structure for the organization and development of code in a particular programming language or platform. The framework serves as a basis or blueprint on which to build when developing software applications.\" class=\"encyclopedia\">Framework<\/a> API: Contains libraries for GUI development, database access and cryptography.<\/li>\n<\/ul>\n<h3 data-start=\"610\" data-end=\"704\"><strong data-start=\"614\" data-end=\"702\">Low-Code\/No-Code-APIs &ndash; A new API category for automation &amp; integration<\/strong><\/h3>\n<p>Low-code\/no-code APIs are specifically designed to give non-developers access to API functionalities. These APIs are an integral part of low-code\/no-code platforms and enable automation, data processing and application integration without in-depth programming knowledge.<\/p>\n<p>Unlike traditional APIs, which often require direct code implementation and API requests, these APIs offer graphical user interfaces, pre-built integrations and simplified API endpoints that can be controlled via visual workflows or configurations.<\/p>\n<p>As low-code\/no-code APIs serve their own target group and differ fundamentally in their use from classic web or programming language APIs, they are an API category in their own right. They are therefore added to this API classification as a separate main category and not classified under web APIs, as they enable API access through visual tools and automation instead of working directly with HTTP requests or SDKs.<\/p>\n<p><strong>Features of low-code\/no-code APIs<\/strong><\/p>\n<p>&#9989; Easy to use thanks to visual workflows &ndash; No direct programming required<br>\n&#9989; Pre-built API connectors &amp; templates &ndash; Integration with common cloud and SaaS services<br>\n&#9989; Automation capability &ndash; APIs serve as the basis for low-code workflows<br>\n&#9989; Abstraction of complex API calls &ndash; users can use APIs in business applications without reading API documentation<\/p>\n<p><strong>Examples of low-code\/no-code APIs<\/strong><\/p>\n<ul>\n<li>Microsoft Power Automate API &ndash; Integration of enterprise applications without code<\/li>\n<li>Google Apps Script API &ndash; Enables no-code integration of Google services<\/li>\n<li>Airtable API &ndash; API access for low-code databases<\/li>\n<li>Zapier API &ndash; Enables easy automation of processes between SaaS services<\/li>\n<li>Make API &ndash; Visual workflows for API-supported processes<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Database_APIs\"><\/span>Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A<strong> database API<\/strong> is used for data management in relational and NoSQL databases. Database APIs enable access to relational or NoSQL databases via standardized interfaces.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Types_of_database_APIs\"><\/span>Types of database APIs:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>SQL-based APIs:<\/strong>\n<ul>\n<li>Direct access to relational databases (e.g. MySQL, PostgreSQL, MSSQL).<\/li>\n<li>Example: JDBC (Java Database Connectivity), ODBC (Open Database Connectivity).<\/li>\n<\/ul>\n<\/li>\n<li><strong>NoSQL APIs:<\/strong>\n<ul>\n<li>Communication with document-based, key-value or graph-based databases.<\/li>\n<li>Example: MongoDB Atlas API, Firebase Firestore API.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Cloud database APIs:<\/strong>\n<ul>\n<li>Access to managed database services from cloud providers.<\/li>\n<li>Example: Amazon RDS API, Google BigQuery API.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Graph database APIs<\/strong>\n<ul>\n<li>High scalability for networked data &ndash; graph databases are optimized for big data analyses and highly networked structures.<\/li>\n<li>Optimal performance for relational data models &ndash; relationships between entities are stored directly instead of being calculated via table JOINs.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Areas_of_application_of_a_database_API\"><\/span><strong>Areas of application of a database API:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Managing and querying large amounts of data in company systems.<\/li>\n<li>Real-time data analysis and reporting.<\/li>\n<li>Connection of backend systems with persistent storage.<\/li>\n<\/ul>\n<h4><strong>Features of a database API &ndash; General properties for all database types<\/strong><\/h4>\n<p>Database APIs enable standardized access to databases, regardless of whether they are relational (SQL), non-relational (NoSQL), graph-based or cloud-based. They serve as an interface between applications and database systems to perform queries, manipulations and administration functions.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"General_features_of_database_APIs\"><\/span>General features of database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>&#9989; CRUD operations &ndash; Each database API supports basic create, read, update, delete functions for data access and management<br>\n&#9989; Level of abstraction &ndash; Allows developers to access databases via a standardized interface, regardless of the underlying database<br>\n&#9989; Connection management &ndash; Supports secure connections via drivers, authentication mechanisms and session handling<br>\n&#9989; Data format support &ndash; APIs often communicate via SQL, JSON, XML or proprietary query languages (e.g. Cypher for graph databases)<br>\n&#9989; Transaction management &ndash; ensuring data consistency and integrity through transaction control (e.g. ACID principles for SQL databases. ACID is an acronym for the four most important properties of a database: atomicity, consistency, isolation and longevity).<br>\n&#9989; Scalability &amp; performance &ndash; support for indexed queries, caching and distributed database architectures<br>\n&#9989; Security mechanisms &ndash; authentication via OAuth, JWT, API keys or role-based access control (RBAC)<br>\n&#9989; Event streaming &amp; change data capture (CDC) &ndash; modern APIs support real-time data processing through event-driven architecture<\/p>\n<p data-pm-slice=\"1 1 []\">&#10145; Database APIs are essential for the interaction between applications and data storage. Their selection depends on scalability, structuring, and performance requirements. &#128640;<\/p>\n<h3>SQL-Based Database APIs &ndash; Standardized Relational Database Connectivity<\/h3>\n<p>SQL-based database APIs enable access to relational databases that operate with structured tables and predefined schemas. SQL APIs provide ACID transaction security, making them ideal for enterprise applications, financial systems, and mission-critical software.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Features_of_SQL-Based_Database_APIs\"><\/span>Features of SQL-Based Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-spread=\"false\">\n<li><strong>Standardized Query Language<\/strong>: Uses SQL (Structured Query Language) for CRUD operations<\/li>\n<li><strong>Strong Consistency<\/strong>: Supports ACID transactions for data security<\/li>\n<li><strong>Strict Schema <a href=\"https:\/\/rock-the-prototype.com\/en\/learn-programming\/validation\/\" target=\"_blank\" title=\"Validation is a central activity in data processing. The validation of data is therefore part of the software development process as well as during software operation, i.e. during the actual use of software programs.\" class=\"encyclopedia\">Validation<\/a><\/strong>: Data must conform to a predefined schema<\/li>\n<li><strong>High Scalability through Sharding and Partitioning<\/strong><\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Examples_of_SQL_Database_APIs\"><\/span>Examples of SQL Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-spread=\"false\">\n<li><strong>JDBC (Java Database Connectivity)<\/strong> &ndash; Standard API for SQL databases in Java<\/li>\n<li><strong>ODBC (Open Database Connectivity)<\/strong> &ndash; Cross-platform SQL database interface<\/li>\n<li><strong>PostgreSQL API<\/strong> &ndash; Native API for PostgreSQL-based database queries<\/li>\n<li><strong>Microsoft SQL Server API<\/strong> &ndash; Direct SQL queries via the T-SQL API<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Use_Cases_of_SQL_Database_APIs\"><\/span>Use Cases of SQL Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>&#9989; <strong>Enterprise Resource Planning (ERP) &amp; Financial Systems<\/strong> &ndash; Database transactions with high consistency requirements<\/p>\n<p>&#9989; <strong>E-commerce Platforms<\/strong> &ndash; Managing product, order, and customer data<\/p>\n<p>&#9989; <strong>Data Analytics &amp; BI Tools<\/strong> &ndash; Queries for business intelligence and reporting<\/p>\n<p>&#9989; <strong>Regulated Industries (Banking, Insurance)<\/strong> &ndash; Compliance and security requirements<\/p>\n<p>&#10145; SQL APIs are the optimal choice for data-intensive applications requiring a strict schema and transaction security.<\/p>\n<h3 data-pm-slice=\"1 1 []\">NoSQL APIs &ndash; Flexible Data Models for Unstructured and Semi-Structured Data<\/h3>\n<p>NoSQL database APIs enable schema-less data access, making them particularly relevant for big data, real-time applications, and distributed systems. NoSQL databases are optimized for scalability and flexibility and include multiple types: document, key-value, column, and graph databases.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Features_of_NoSQL_Database_APIs\"><\/span>Features of NoSQL Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-spread=\"false\">\n<li><strong>Schema-Free or Dynamic Schemas<\/strong> &ndash; No fixed table structure required<\/li>\n<li><strong>Horizontal Scalability<\/strong> &ndash; Optimal for cloud and distributed systems<\/li>\n<li><strong>Optimized for Fast Read\/Write Operations<\/strong> &ndash; Ideal for web and mobile apps<\/li>\n<li><strong>Multiple Data Models Supported<\/strong>: Document, key-value, column, or graph structures<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Examples_of_NoSQL_Database_APIs\"><\/span>Examples of NoSQL Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-spread=\"false\">\n<li><strong>MongoDB Atlas API<\/strong> &ndash; API for document-based JSON databases<\/li>\n<li><strong>Firebase Firestore API<\/strong> &ndash; Real-time NoSQL database for mobile and web apps<\/li>\n<li><strong>Apache Cassandra API<\/strong> &ndash; Column-oriented API for distributed databases<\/li>\n<li><strong>Redis API<\/strong> &ndash; Key-value store for caching and real-time processing<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Use_Cases_of_NoSQL_Database_APIs\"><\/span>Use Cases of NoSQL Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>&#9989; <strong>Content Management Systems (CMS)<\/strong> &ndash; Flexible storage for text, media, and metadata<\/p>\n<p>&#9989; <strong>Real-Time Streaming &amp; Social Media<\/strong> &ndash; Fast processing of large data volumes (Twitter, Facebook)<\/p>\n<p>&#9989; <strong>Big Data &amp; Analytics<\/strong> &ndash; Processing unstructured and semi-structured data<\/p>\n<p>&#9989; <strong>IoT &amp; Sensor Data Processing<\/strong> &ndash; Storing large volumes of time-sensitive data<\/p>\n<p>&#10145; NoSQL APIs are ideal for highly scalable, flexible, and cloud-native applications.<\/p>\n<h3 data-pm-slice=\"1 1 []\">Cloud Database APIs &ndash; Databases as Managed Services<\/h3>\n<p>Cloud database APIs provide database services without requiring an on-premise infrastructure. These APIs allow for scalable, managed cloud databases where developers do not need to handle maintenance, backups, or scaling.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Features_of_Cloud_Database_APIs\"><\/span>Features of Cloud Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-spread=\"false\">\n<li><strong>Automatic Scaling and High Availability<\/strong><\/li>\n<li><strong>Managed Backups, Security &amp; Updates by Cloud Providers<\/strong><\/li>\n<li><strong>Cost Optimization through Pay-as-you-go Models<\/strong><\/li>\n<li><strong>Support for SQL and NoSQL Databases<\/strong><\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Examples_of_Cloud_Database_APIs\"><\/span>Examples of Cloud Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-spread=\"false\">\n<li><strong>Amazon RDS API<\/strong> &ndash; API for relational databases on AWS<\/li>\n<li><strong>Google BigQuery API<\/strong> &ndash; API for data warehousing and analytics<\/li>\n<li><strong>Microsoft Azure Cosmos DB API<\/strong> &ndash; API for globally distributed NoSQL databases<\/li>\n<li><strong>Snowflake API<\/strong> &ndash; API for scalable data warehouse solutions<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Use_Cases_of_Cloud_Database_APIs\"><\/span>Use Cases of Cloud Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>&#9989; <strong>Data-Driven Web and SaaS Applications<\/strong> &ndash; Centralized data storage for cloud software<\/p>\n<p>&#9989; <strong>Data Warehousing &amp; Analytics<\/strong> &ndash; Processing large datasets in the cloud<\/p>\n<p>&#9989; <strong>Artificial Intelligence &amp; <a href=\"https:\/\/rock-the-prototype.com\/en\/artificial-intelligence-ai\/machine-learning\/\" target=\"_blank\" title=\"Machine learning is a branch of artificial intelligence (AI) that deals with the development of algorithms and models that enable computers to learn from experience and data, recognize patterns and make predictions without being explicitly programmed. The aim of machine learning is to enable computers to learn independently from data and extract information in order to master complex tasks. We explain which concepts are used to do this and how predictions can be made by adapting models to existing data.\" class=\"encyclopedia\">Machine Learning<\/a><\/strong> &ndash; Storing and processing AI data<\/p>\n<p>&#9989; <strong>Serverless &amp; Edge Computing<\/strong> &ndash; Cloud-native storage for decentralized applications<\/p>\n<p>&#10145; Cloud database APIs offer a flexible, scalable alternative to traditional on-premise data storage.<\/p>\n<h3 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"Graph_Database_APIs\"><\/span>Graph Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graph database APIs differ fundamentally from relational SQL and traditional NoSQL databases, as they focus on nodes, edges, and properties. While relational databases rely on tables and keys, graph databases optimize the processing of highly connected data structures, such as social networks, fraud detection, and knowledge graphs.<\/p>\n<p>&#9989; <strong>No JOIN Overhead<\/strong> &ndash; Queries are often faster than in relational databases as relationships are directly modeled &#9989; <strong>Ideal for Connected Data<\/strong> &ndash; Natural modeling for graph and network analysis &#9989; <strong>Flexible Schema Definition<\/strong> &ndash; No rigid table structures &#9989; <strong>Efficient Traversal<\/strong> &ndash; Specialized graph algorithms<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Examples_of_Graph_Database_APIs\"><\/span>Examples of Graph Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-spread=\"false\">\n<li><strong>Neo4j GraphQL API<\/strong> &ndash; API for querying graphs in Neo4j using GraphQL<\/li>\n<li><strong>Amazon Neptune API<\/strong> &ndash; Supports queries via Gremlin, SPARQL, and OpenCypher<\/li>\n<li><strong>ArangoDB API<\/strong> &ndash; Multi-model database with native graph APIs<\/li>\n<li><strong>JanusGraph API<\/strong> &ndash; Open-source graph database for scalable graph queries<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Use_Cases_of_Graph_Database_APIs\"><\/span>Use Cases of Graph Database APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>&#9989; <strong>Fraud Detection &amp; Anomaly Detection (Banking, Finance)<\/strong><\/p>\n<p>&#9989; <strong>Social Media &amp; Recommendation Engines (LinkedIn, Facebook, Netflix)<\/strong><\/p>\n<p>&#9989; <strong>Knowledge Graphs &amp; Semantic Search (Google Knowledge Graph, Wikipedia Links)<\/strong><\/p>\n<p>&#9989; <strong>IT Network Analysis &amp; Cybersecurity (Detecting attack patterns in networks)<\/strong><\/p>\n<p>&#10145; Graph database APIs are particularly useful for applications that need to represent highly connected entities.<\/p>\n<h3 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"Event-Driven_APIs_Asynchronous_Communication_in_Distributed_Systems\"><\/span>Event-Driven APIs (Asynchronous Communication in Distributed Systems)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>An event-driven API supports event-driven, asynchronous architectures and distributes messages across systems.<\/p>\n<ul data-spread=\"false\">\n<li><strong>Message Queue APIs<\/strong> (Kafka, RabbitMQ, SQS)<\/li>\n<li><strong>Event Streaming APIs<\/strong> (Apache Pulsar, Azure Event Hubs)<\/li>\n<\/ul>\n<h4>Webhooks vs. WebSockets &ndash; How Do They Differ?<\/h4>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>Webhooks<\/th>\n<th>WebSockets<\/th>\n<\/tr>\n<tr>\n<td>Model<\/td>\n<td>Push-based, event-driven<\/td>\n<td>Persistent bidirectional connection<\/td>\n<\/tr>\n<tr>\n<td>Initiation<\/td>\n<td>Server sends a message to a registered client (HTTP-POST)<\/td>\n<td>Client establishes a permanent connection, enabling bidirectional communication<\/td>\n<\/tr>\n<tr>\n<td>Transport Protocol<\/td>\n<td>HTTP (usually REST-based)<\/td>\n<td>WebSocket protocol over TCP<\/td>\n<\/tr>\n<tr>\n<td>Real-Time Capability<\/td>\n<td>Delayed due to HTTP requests<\/td>\n<td>Real-time communication<\/td>\n<\/tr>\n<tr>\n<td>Typical Applications<\/td>\n<td>API notifications (e.g., GitHub Webhooks)<\/td>\n<td>Chats, live dashboards, gaming, financial market data<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&#128269; <strong>Are Webhooks APIs?<\/strong> Yes, webhooks are classified as asynchronous, event-driven APIs. They can be categorized as event-driven APIs since they react to events and send HTTP requests to a target server.<\/p>\n<h3 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"Operating_System_APIs\"><\/span>Operating System APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>An operating system API (OS API) allows applications to access system functions such as networking, file systems, and processes.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Examples_of_OS_APIs\"><\/span>Examples of OS APIs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul data-spread=\"false\">\n<li><strong>WinAPI (Windows API)<\/strong> &ndash; Access to window management, network communication, and security functions<\/li>\n<li><strong>POSIX API (Portable Operating System Interface)<\/strong> &ndash; Standardized interface for Unix\/Linux systems<\/li>\n<li><strong>macOS Cocoa API<\/strong> &ndash; Framework for developing macOS applications with Objective-C or Swift<\/li>\n<\/ul>\n<p>&#10145; OS APIs provide an intermediate abstraction layer with direct access to system resources.<\/p>\n<h3 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"Hardware_APIs\"><\/span>Hardware APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Hardware APIs enable the control of hardware components and often require special permissions.<\/p>\n<ul data-spread=\"false\">\n<li><strong>Driver APIs<\/strong> (Kernel Mode, Windows\/Linux)<\/li>\n<li><strong>Firmware APIs<\/strong> (UEFI, Microcontroller Interfaces)<\/li>\n<\/ul>\n<p>&#10145; APIs can be clearly differentiated by use case. Modern software architectures often combine multiple API types to build flexible and scalable systems.<\/p>\n<\/div><a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Podcast Folge 1 - Ideenfindung und Kreativit&auml;t in der Softwareentwicklung - Rock the Prototype\" href=\"#\"><iframe style=\"width: 100%; max-width: 660px; overflow: hidden; border-radius: 10px;\" src=\"https:\/\/embed.podcasts.apple.com\/us\/podcast\/folge-1-ideenfindung-und-kreativit%C3%A4t-in-der-softwareentwicklung\/id1684107786?i=1000610343375\" height=\"175\" frameborder=\"0\" sandbox=\"allow-forms allow-popups allow-same-origin allow-scripts allow-storage-access-by-user-activation allow-top-navigation-by-user-activation\"><\/iframe><\/a>\n<div class=\"fusion-text fusion-text-3\" style=\"--awb-margin-top:4%;\"><h2 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"API_Documentation_and_References\"><\/span>API Documentation and References<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>An API documentation describes the functions and usage possibilities of an API. It includes:<\/p>\n<ul data-spread=\"false\">\n<li>Function descriptions<\/li>\n<li>Parameters and return values<\/li>\n<li>Example calls<\/li>\n<li>Access rights and authentication methods<\/li>\n<\/ul>\n<p>Modern API documentation often uses Swagger\/OpenAPI or GraphQL Playground to provide interactive descriptions and testing capabilities.<\/p>\n<h2 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"API_Governance_and_Best_Practices\"><\/span>API Governance and Best Practices<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"API_Governance_Rules_for_Robust_and_Standardized_APIs\"><\/span>API Governance: Rules for Robust and Standardized APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/api-governance\/\" target=\"_blank\" title=\"API governance is a key success factor for secure, scalable, and maintainable interfaces. It ensures consistency, prevents API sprawl, and embeds regulatory requirements directly into the development process. Through standardized guidelines, automated validation mechanisms, and clear ownership, API governance becomes the enabler of a sustainable API strategy &mdash; from the first design decision to controlled deprecation.\" class=\"encyclopedia\">API governance<\/a> is a crucial factor for consistent, secure, and maintainable APIs. Standardization, versioning, and security policies ensure that APIs function efficiently in the long term.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Key_Principles_of_API_Governance\"><\/span>Key Principles of API Governance<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#9989; <strong>OpenAPI Standard (formerly Swagger)<\/strong> &ndash; Defines API specifications for documentation and code generation<br>\n&#9989; <strong>API Versioning (v1, v2, &hellip;)<\/strong> &ndash; Clear separation of API changes without breaking changes<br>\n&#9989; <strong>Security Mechanisms<\/strong> &ndash; OAuth 2.0, JWT, API rate limiting, CORS<br>\n&#9989; <strong>API Usage Policies &amp; Governance Frameworks<\/strong> &ndash; Uniform API design guidelines<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Best_Practices_for_API_Governance\"><\/span>Best Practices for API Governance<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#128313; <strong>API consistency through naming conventions<\/strong> (uniform endpoints and parameter names)<br>\n&#128313; <strong>Rate limiting and throttling<\/strong> (protection against abuse and DDoS attacks)<br>\n&#128313; <strong>Logical API structure &amp; RESTful design<\/strong> (clear separation of CRUD operations)<br>\n&#128313; <strong>Monitoring &amp; Observability<\/strong> &ndash; Collect API access statistics for optimization<\/p>\n<p>&#10145; <strong>IMPORTANT:<\/strong> Good API governance ensures long-term scalability, security, and standardization.<\/p>\n<h3 data-pm-slice=\"1 1 []\">API Lifecycle Management &ndash; From Development to Deprecation<\/h3>\n<p>API lifecycle management describes the entire lifecycle of an API &ndash; from conception to deprecation. A structured lifecycle management approach is crucial for consistency, maintainability, and scalability in modern API architectures.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Phases_of_the_API_Lifecycle\"><\/span>Phases of the API Lifecycle<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>1&#65039;&#8419; <strong>Planning &amp; Design<\/strong> &ndash; Define API requirements, create OpenAPI specifications, establish security policies<br>\n2&#65039;&#8419; <strong>Development &amp; Implementation<\/strong> &ndash; Implement API endpoints, authentication, versioning, and testing<br>\n3&#65039;&#8419; <strong>Testing &amp; Deployment<\/strong> &ndash; Conduct unit tests, integration tests, and API mock tests, deploy in staging environments<br>\n4&#65039;&#8419; <strong>Operations &amp; Monitoring<\/strong> &ndash; Monitor API performance, usage, and security, optimize rate limiting and error handling<br>\n5&#65039;&#8419; <strong>Versioning &amp; Evolution<\/strong> &ndash; Add new features, plan deprecation strategies, avoid breaking changes<br>\n6&#65039;&#8419; <strong>Deprecation &amp; Sunset<\/strong> &ndash; Replace APIs with new versions, gradually phase out old versions, inform customers<\/p>\n<p>&#10145; <strong>Good API lifecycle management ensures seamless updates, security, and long-term stability of API integrations.<\/strong> &#128640;<\/p>\n<h3 data-pm-slice=\"1 1 []\">API Orchestration vs. API Gateways &ndash; Differences and Use Cases<\/h3>\n<p>&#128313; <strong>API Orchestration<\/strong> refers to managing multiple API services in a workflow. It is often used in microservices architectures to coordinate services and execute dependencies.<\/p>\n<p>&#128313; <strong>API Gateways<\/strong> act as a central proxy layer that manages API access, adds security layers, and optimizes API routing.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Comparison_API_Orchestration_vs_API_Gateway\"><\/span>Comparison: API Orchestration vs. API Gateway<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>API Orchestration<\/th>\n<th>API Gateway<\/th>\n<\/tr>\n<tr>\n<td>Function<\/td>\n<td>Links multiple API calls in a defined sequence<\/td>\n<td>Controls access to individual APIs<\/td>\n<\/tr>\n<tr>\n<td>Use Case<\/td>\n<td>Complex API processes (e.g., microservices)<\/td>\n<td>Authentication, caching, load balancing<\/td>\n<\/tr>\n<tr>\n<td>Examples<\/td>\n<td>Camunda, Apache Airflow, Zeebe<\/td>\n<td>Kong, Istio, AWS API Gateway, Apigee<\/td>\n<\/tr>\n<tr>\n<td>Typical Usage<\/td>\n<td>Backend services, event-driven processes<\/td>\n<td>External API exposure, security, rate limiting<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&#10145; <strong>IMPORTANT:<\/strong> API gateways serve as an access layer, while API orchestration automates complex API processes. Both concepts complement each other and ensure scalability and IT security.<\/p>\n<h2 data-pm-slice=\"1 1 []\">API Testing &amp; Monitoring &ndash; Ensuring Quality and Availability<\/h2>\n<p>API testing and monitoring are essential for detecting errors early, ensuring security, and continuously improving performance.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"API_Testing_Methods_for_Robust_APIs\"><\/span>API Testing: Methods for Robust APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#9989; <strong>Unit Tests<\/strong> &ndash; Testing individual API endpoints (e.g., with Jest, Mocha, JUnit) &#9989; <strong>Integration Tests<\/strong> &ndash; Ensuring that different API services work together correctly &#9989; <strong>Mock Tests<\/strong> &ndash; Simulating API responses for tests without real backend access (e.g., with Postman or WireMock) &#9989; <strong>Load &amp; Performance Tests<\/strong> &ndash; Stress tests to analyze scalability<\/p>\n<h3><span class=\"ez-toc-section\" id=\"API_Monitoring_Real-Time_Surveillance_for_Stability_Security\"><\/span>API Monitoring: Real-Time Surveillance for Stability &amp; Security<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#9989; <strong>Logging &amp; <a href=\"https:\/\/rock-the-prototype.com\/en\/learn-programming\/tracing\/\" target=\"_blank\" title=\"What is tracing? &#9989; In software programming, tracing refers to a function for analyzing programs. Tracing is also used for troubleshooting in programs or apps \/ web apps. Tracing analysis is a precise process tracing.\" class=\"encyclopedia\">Tracing<\/a><\/strong> &ndash; Capturing API calls for error analysis (e.g., ELK Stack, Grafana, Prometheus) &#9989; <strong>API Observability &amp; Performance Metrics<\/strong> &ndash; Measuring latency, response times, and error rates &#9989; <strong>Error Tracking &amp; Alerting<\/strong> &ndash; Automatic error notifications (e.g., Sentry, Datadog)<\/p>\n<p>&#10145; <strong>IMPORTANT:<\/strong> Without API testing and monitoring, many issues remain undetected. A well-thought-out testing strategy is crucial for reliable APIs.<\/p>\n<\/div><div class=\"fusion-text fusion-text-4\"><h2 data-start=\"2212\" data-end=\"2261\"><span class=\"ez-toc-section\" id=\"API_development_and_reusability\"><\/span><strong data-start=\"2215\" data-end=\"2259\">API development and reusability<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2262\" data-end=\"2397\">In <strong data-start=\"2269\" data-end=\"2313\">component-based software development<\/strong>, particular emphasis is placed on reusability. A distinction is made between:<\/p>\n<ul data-start=\"2399\" data-end=\"2658\">\n<li data-start=\"2399\" data-end=\"2539\"><strong data-start=\"2401\" data-end=\"2437\">Development for reuse<\/strong>: APIs are deliberately designed so that they are flexible and can be used in different applications.<\/li>\n<li data-start=\"2540\" data-end=\"2658\"><strong data-start=\"2542\" data-end=\"2582\">Development by means of reuse<\/strong>: Existing APIs are combined to create new functionalities.<\/li>\n<\/ul>\n<p data-start=\"2660\" data-end=\"2794\">Modern APIs are often <strong data-start=\"2682\" data-end=\"2693\">modular<\/strong> and structured according to the <strong data-start=\"2707\" data-end=\"2732\">microservices principle<\/strong> in order to improve scalability and maintainability.<\/p>\n<\/div><div class=\"fusion-text fusion-text-5\"><h2 data-start=\"2796\" data-end=\"2854\"><span class=\"ez-toc-section\" id=\"Legacy_APIs_and_integration_into_existing_systems\"><\/span><strong data-start=\"2799\" data-end=\"2852\">Legacy APIs and integration into existing systems<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2855\" data-end=\"3012\"><span data-start=\"2869\" data-end=\"3010\"><b>Legacy systems<\/b>, i.e. quasi-proprietary software systems<\/span>, are now usually connected via API gateways or middleware platforms instead of using traditional reengineering methods.<\/p>\n<p data-start=\"3014\" data-end=\"3316\">Such legacy systems that do not have modern APIs can be integrated into new architectures using <strong data-start=\"3073\" data-end=\"3089\">API gateways<\/strong> or <strong data-start=\"3095\" data-end=\"3121\">middleware platforms<\/strong>. If no usable interface exists, <strong data-start=\"3216\" data-end=\"3237\">API reengineering<\/strong> may be necessary to provide documentation and endpoints at a later date.<\/p>\n<p data-start=\"3014\" data-end=\"3316\">In the past, the reengineering of existing systems was primarily used to document interfaces retrospectively. Today, API management platforms and reverse proxies are central tools for connecting legacy systems.<\/p>\n<\/div><a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Spotify Podcast Folge 21 - Software Architektur Reviews - Interview mit Stefan Z&ouml;rner - Rock the Prototype - Softwareentwicklung &amp; Prototyping\" href=\"#\"><iframe class=\"lazyload\" style=\"border-radius: 12px;\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27100%27%20height%3D%27352%27%20viewBox%3D%270%200%20100%20352%27%3E%3Crect%20width%3D%27100%27%20height%3D%27352%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"https:\/\/open.spotify.com\/embed\/episode\/510fJbzqgu04yjWzjGRx5B?utm_source=generator\" width=\"100%\" height=\"352\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/a>\n<div class=\"fusion-text fusion-text-6\"><h2 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"Modern_API_Architecture_Security_Scalability_and_Efficiency\"><\/span>Modern API Architecture: Security, Scalability, and Efficiency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>An API (Application Programming Interface) is a central interface in software development that enables different systems, services, and applications to connect. APIs are an essential component of software architecture, especially in microservices and cloud-native applications.<\/p>\n<p>Modern web APIs are often based on REST, GraphQL, or gRPC to ensure efficient communication between systems. While REST is widely adopted, GraphQL provides more flexibility through targeted data queries, and gRPC enables highly performant, binary-serialized communication for distributed systems.<\/p>\n<p>An API gateway takes on central tasks such as API authentication with OAuth or JWT to ensure that only authorized clients access resources. API security plays a crucial role in preventing unauthorized access and attacks. API data encryption, API rate limiting, and API throttling are essential mechanisms to prevent overloads and ensure service quality.<\/p>\n<p>API documentation, particularly with OpenAPI, is essential for traceability and easy integration by developers. A well-structured API interface description improves API interoperability by defining clear endpoints (API endpoints) and enabling standardized usage.<\/p>\n<p>To ensure quality and availability, API testing, API monitoring, and structured API management are crucial. API versioning ensures that changes to an API do not affect existing clients, while API orchestration facilitates the management of complex API interactions.<\/p>\n<p>In the cloud, APIs play a key role: API cloud integration connects services across different platforms, ensuring seamless data processing. Optimized API performance is essential to minimize latency and provide highly available systems.<\/p>\n<p>APIs are the backbone of modern applications and must be both secure and performant. The right combination of API design, security, management, and monitoring determines the scalability and future viability of digital solutions.<\/p>\n<h2 data-pm-slice=\"1 3 []\"><span class=\"ez-toc-section\" id=\"Architectural_Styles_and_Their_Relevance_for_APIs\"><\/span>Architectural Styles and Their Relevance for APIs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>APIs are not isolated but an integral part of architectures that define how APIs are used and integrated. The two dominant architectural styles are SOA (Service-Oriented Architecture) and Microservices, both of which heavily rely on APIs.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"SOA_Service-Oriented_Architecture\"><\/span>SOA (Service-Oriented Architecture)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The SOA architecture was an early attempt to break up monolithic applications by enabling services to communicate via ESBs (Enterprise Service Bus). APIs played a role here by providing SOAP web services or legacy protocols.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Relevance_for_API_Classification\"><\/span>Relevance for API Classification:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-spread=\"false\">\n<li>APIs in SOA systems are often SOAP-based or managed via ESB.<\/li>\n<li>In modern architectures, SOA is often replaced by microservices and REST\/gRPC APIs.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Microservices\"><\/span>Microservices<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Microservices represent the modern architectural approach, where small, independent services communicate via lightweight APIs. REST and gRPC have emerged as leading API technologies in this space.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Relevance_for_API_Classification-2\"><\/span>Relevance for API Classification:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-spread=\"false\">\n<li>Microservices primarily rely on REST and gRPC to enable scalable, loosely coupled systems.<\/li>\n<li>APIs are the core element of microservices &ndash; they serve as communication interfaces between individual services.<\/li>\n<\/ul>\n<h3 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"Cross-Connection_to_API_Classification\"><\/span>Cross-Connection to API Classification<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#9989; <strong>APIs are fundamental building blocks of modern architectures <\/strong>(both in SOA and Microservices).<\/p>\n<p>&#9989; <strong>REST APIs dominate microservices<\/strong>, while older SOA models often use SOAP or ESB.<\/p>\n<p>&#9989; <strong>gRPC is increasingly used in microservices due to its optimization for fast, binary communication.<\/strong><\/p>\n<p>&#9989; <strong>ESBs and API gateways are not APIs but orchestration layers that manage APIs.<\/strong><\/p>\n<p>&#10145; <strong>These architectural styles influence API usage but do not change their classification. Instead, they help you understand the relevance of different API types within modern IT architectures.<\/strong> &#128640;<\/p>\n<\/div><a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Apple Podcast Folge 21 - Software Architektur Reviews - Interview mit Stefan Z&ouml;rner - Rock the Prototype - Softwareentwicklung &amp; Prototyping\" href=\"#\"><iframe style=\"width: 100%; max-width: 660px; overflow: hidden; border-radius: 10px;\" src=\"https:\/\/embed.podcasts.apple.com\/us\/podcast\/folge-21-software-architektur-reviews-interview-mit\/id1684107786?i=1000669894186\" height=\"175\" frameborder=\"0\" sandbox=\"allow-forms allow-popups allow-same-origin allow-scripts allow-storage-access-by-user-activation allow-top-navigation-by-user-activation\"><\/iframe><\/a>\n<div class=\"fusion-text fusion-text-7\" style=\"--awb-margin-top:4%;\"><h3 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"Monolithic_vs_Component-Based_APIs_Architectural_Decisions_Compared\"><\/span>Monolithic vs. Component-Based APIs: Architectural Decisions Compared<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>APIs are an essential element of modern software architecture, significantly influencing the scalability, maintainability, and security of a system. There are two fundamental approaches: monolithic APIs and component-based APIs, which are often used in microservices architectures.<\/p>\n<h4 data-pm-slice=\"1 3 []\"><span class=\"ez-toc-section\" id=\"Monolithic_APIs_Stability_Through_Tight_Coupling\"><\/span>Monolithic APIs: Stability Through Tight Coupling<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>A monolithic system is an application that operates as a single, unified entity. APIs in such systems are internal and primarily serve communication between different modules within the monolith.<\/p>\n<p>&#9989; <strong>Advantages of Monolithic APIs:<\/strong><\/p>\n<ul data-spread=\"false\">\n<li>Higher stability and coherence since all components are developed and tested together.<\/li>\n<li>Simplified security controls, as all API calls remain within the system.<\/li>\n<li>Ideal for transaction-critical applications that require strong consistency and low latency.<\/li>\n<\/ul>\n<p>&#10060; <strong>Disadvantages of Monolithic APIs:<\/strong><\/p>\n<ul data-spread=\"false\">\n<li>Tight coupling means changes are difficult and often associated with downtime.<\/li>\n<li>Scalability is limited, as the entire system must grow instead of scaling individual components independently.<\/li>\n<\/ul>\n<h4 data-pm-slice=\"1 3 []\"><span class=\"ez-toc-section\" id=\"Component-Based_APIs_Flexibility_and_Scalability\"><\/span>Component-Based APIs: Flexibility and Scalability<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Modern microservices architectures rely on component-based APIs that provide individual services independently. These APIs are typically externally accessible and allow for dynamic scaling and continuous development of individual components.<\/p>\n<p>&#9989; <strong>Advantages of Component-Based APIs:<\/strong><\/p>\n<ul data-spread=\"false\">\n<li><strong>High flexibility:<\/strong> Each microservice can be developed, updated, and scaled independently.<\/li>\n<li><strong>Better fault tolerance:<\/strong> A failure in one microservice does not impact the entire system.<\/li>\n<li><strong>Seamless cloud integration:<\/strong> APIs enable microservices to operate across different cloud environments.<\/li>\n<\/ul>\n<p>&#10060; <strong>Disadvantages of Component-Based APIs:<\/strong><\/p>\n<ul data-spread=\"false\">\n<li><strong>Higher management effort:<\/strong> APIs must be orchestrated and secured via an API gateway.<\/li>\n<li><strong>More complex security:<\/strong> Distributed services require OAuth, JWT, and other authentication mechanisms.<\/li>\n<\/ul>\n<h4 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"How_to_Decide_Between_Monolithic_and_Component-Based_APIs\"><\/span>How to Decide Between Monolithic and Component-Based APIs?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The choice between monolithic and component-based APIs depends on the application&rsquo;s requirements. 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Prototyping is both a process and a strategy for realizing ideas as quickly as possible.\" class=\"encyclopedia\">prototyping<\/a> and technology.<\/p>\n<p class=\"p1\"><strong>&#127911; Listen on Spotify: &#128073; Spotify Podcast: <a href=\"https:\/\/bit.ly\/41pm8rL\">https:\/\/bit.ly\/41pm8rL<\/a><\/strong><\/p>\n<p class=\"p1\"><strong><span class=\"s1\">&#127822;<\/span> Enjoy on Apple Podcasts: <span class=\"s1\">&#128073;<\/span>&nbsp;<a href=\"https:\/\/bit.ly\/4aiQf8t\">https:\/\/bit.ly\/4aiQf8t<\/a><\/strong><\/p>\n<p>In the podcast, you can expect exciting discussions and valuable insights into current trends, tools and best practices &ndash; ideal for staying on the ball and gaining fresh perspectives for your own projects. On the YouTube channel, you&rsquo;ll find practical tutorials and step-by-step instructions that clearly explain technical concepts and help you get straight into implementation.<\/p>\n<p><strong>Rock the Prototype YouTube Channel<\/strong><\/p>\n<p>&#128640; Rock the Prototype is &#128073; Your format for exciting topics such as software development, prototyping, software architecture, cloud, DevOps &amp; much more.<\/p>\n<p>&#128250; &#128075;&nbsp;<strong><a href=\"https:\/\/www.youtube.com\/@Rock-the-Prototype\" target=\"_blank\" rel=\"noopener\">Rock the Prototype YouTube Channel<\/a>&nbsp;&#128072;&nbsp; &#128064;&nbsp;<\/strong><\/p>\n<p style=\"padding-left: 40px;\">&#9989; Software development &amp; prototyping<\/p>\n<p style=\"padding-left: 40px;\">&#9989; Learning to program<\/p>\n<p style=\"padding-left: 40px;\">&#9989; Understanding software architecture<\/p>\n<p style=\"padding-left: 40px;\">&#9989; Agile teamwork<\/p>\n<p style=\"padding-left: 40px;\">&#9989; Test prototypes together<\/p>\n<p><strong>THINK PROTOTYPING &ndash; PROTOTYPE DESIGN &ndash; PROGRAM &amp; GET STARTED &ndash; JOIN IN NOW!<\/strong><\/p>\n<h4>Why is it worth checking back regularly?<\/h4>\n<p>Both formats complement each other perfectly: in the podcast, you can learn new things in a relaxed way and get inspiring food for thought, while on YouTube you can see what you have learned directly in action and receive valuable tips for practical application.<\/p>\n<p>Whether you&rsquo;re just starting out in software development or are passionate about prototyping, UX design or IT security. 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