{"id":5573,"date":"2025-03-10T08:33:32","date_gmt":"2025-03-10T07:33:32","guid":{"rendered":"https:\/\/rock-the-prototype.com\/uncategorized\/rest-api-representational-state-transfer-api\/"},"modified":"2025-03-10T11:08:24","modified_gmt":"2025-03-10T10:08:24","slug":"rest-api-representational-state-transfer-api","status":"publish","type":"encyclopedia","link":"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/","title":{"rendered":"REST API (Representational State Transfer 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\/rest-api-representational-state-transfer-api\/#What_is_a_REST_API\" >What is a REST 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\/rest-api-representational-state-transfer-api\/#Basic_principles_of_a_REST_API\" >Basic principles of a REST 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\/rest-api-representational-state-transfer-api\/#HTTP_methods_in_REST_APIs\" >HTTP methods in REST APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Data_formats_and_API_responses\" >Data formats and API responses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#URI_design_for_REST_APIs\" >URI design for REST APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Security_and_authentication\" >Security and authentication<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#REST_and_IT_standards_standardized_interfaces_for_maximum_interoperability\" >REST and IT standards: standardized interfaces for maximum interoperability<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#HTTP_%E2%80%93_The_foundation_of_REST\" >HTTP &#8211; The foundation of REST<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#OpenAPI_Swagger_%E2%80%93_Standardized_API_description\" >OpenAPI \/ Swagger &#8211; Standardized API description<\/a><\/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\/rest-api-representational-state-transfer-api\/#OAuth_20_JWT_%E2%80%93_Standardized_API_authentication\" >OAuth 2.0 &amp; JWT &#8211; Standardized API authentication<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#API_governance_versioning\" >API governance &amp; versioning<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#REST_vs_alternative_API-Standards_GraphQL_gRPC_SOAP\" >REST vs. alternative API-Standards (GraphQL, gRPC, SOAP)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#REST_as_a_flexible_standard_with_broad_support\" >REST as a flexible standard with broad support<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Areas_of_application_for_REST_APIs\" >Areas of application for REST APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#REST_API_The_strengths_and_weaknesses_at_a_glance\" >REST API: The strengths and weaknesses at a glance<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Advantages_of_REST_APIs\" >Advantages of REST APIs<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Platform_independence_broad_support\" >Platform independence &amp; broad support<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Scalability_thanks_to_the_stateless_principle\" >Scalability thanks to the stateless principle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Simple_implementation_maintenance\" >Simple implementation &amp; maintenance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Caching_for_performance_optimization\" >Caching for performance optimization<\/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\/rest-api-representational-state-transfer-api\/#Flexibility_through_JSON_XML\" >Flexibility through JSON &amp; XML<\/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\/rest-api-representational-state-transfer-api\/#High_interoperability_integration\" >High interoperability &amp; integration<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Disadvantages_of_REST_APIs\" >Disadvantages of REST APIs<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Overhead_due_to_repeated_requests\" >Overhead due to repeated requests<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Inefficiency_with_complex_data_structures\" >Inefficiency with complex data structures<\/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\/rest-api-representational-state-transfer-api\/#Lack_of_real-time_functionality\" >Lack of real-time functionality<\/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\/rest-api-representational-state-transfer-api\/#Lack_of_standardization_for_API_designs\" >Lack of standardization for API designs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Security_requires_additional_effort\" >Security requires additional effort<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Scaling_can_be_costly\" >Scaling can be costly<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/rock-the-prototype.com\/en\/software-development\/rest-api-representational-state-transfer-api\/#Conclusion_When_is_REST_the_right_choice\" >Conclusion: When is REST the right choice?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_REST_API\"><\/span><strong>What is a REST API?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A <strong>REST API<\/strong> is an interface that is based on the principles of the REST architecture (Representational State Transfer) and enables communication between distributed systems via HTTP. It defines how clients interact with servers by identifying resources and retrieving or modifying them using standardized HTTP methods.<\/p>\n\n<\/div><div class=\"fusion-text fusion-text-2\"><h2 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"Basic_principles_of_a_REST_API\"><\/span><strong>Basic principles of a REST API<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-pm-slice=\"1 1 []\">A <strong>REST-compliant API<\/strong> follows certain architectural principles:<\/p>\n<ul data-spread=\"false\">\n<li><strong>Stateless:<\/strong> Each request must contain all required information, as the server does not store any session data.<\/li>\n<li><strong>Client-server architecture:<\/strong> The separation of client and server improves scalability and flexibility.<\/li>\n<li><strong>Uniform interface:<\/strong> Standardized endpoints and data formats such as <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 ensure consistent use.<\/li>\n<li><strong>Cacheability:<\/strong> Responses can be cached to improve performance.<\/li>\n<li><strong>Layered architecture:<\/strong> The API can be implemented across several layers without the client knowing the details of the underlying layers.<\/li>\n<li><strong>HATEOAS (optional):<\/strong> Hypermedia as part of the API response enables dynamic navigation through resources.<\/li>\n<\/ul>\n<\/div><a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Spotify Podcast Folge 18 - Confidential Computing - Teil 1 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\/0o2kVzv5h48xt9UxWfyhZ6?utm_source=generator\" width=\"100%\" height=\"352\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/a>\n<div class=\"fusion-text fusion-text-3\" style=\"--awb-margin-top:4%;\"><h2 data-pm-slice=\"1 3 []\"><span class=\"ez-toc-section\" id=\"HTTP_methods_in_REST_APIs\"><\/span><strong>HTTP methods in REST APIs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-pm-slice=\"1 3 []\">REST APIs use standardized HTTP methods to manipulate resources:<\/p>\n<ul data-spread=\"false\">\n<li><strong>GET:<\/strong> Retrieves a resource (e.g. <code>GET \/users\/<\/code> provides user data).<\/li>\n<li><strong>POST:<\/strong> Creates a new resource (e.g. <code>POST \/users<\/code> creates a new user).<\/li>\n<li><strong>PUT:<\/strong> Updates an existing resource completely (e.g. <code>PUT \/users\/<\/code>).<\/li>\n<li><strong>PATCH:<\/strong> Partially updates a resource (e.g. <code>PATCH \/users\/<\/code>).<\/li>\n<li><strong>DELETE:<\/strong> Deletes a resource (e.g. <code>DELETE \/users\/<\/code>).<\/li>\n<\/ul>\n<\/div><div class=\"fusion-text fusion-text-4\"><h2 data-pm-slice=\"1 3 []\"><span class=\"ez-toc-section\" id=\"Data_formats_and_API_responses\"><\/span><strong>Data formats and API responses<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-pm-slice=\"1 3 []\">REST APIs usually use JSON as the standard format for requests and responses. Typical HTTP status codes provide information about the success or error of a request:<\/p>\n<ul data-spread=\"false\">\n<li><strong>200 OK:<\/strong> Successful request.<\/li>\n<li><strong>201 Created:<\/strong> Resource successfully created.<\/li>\n<li><strong>400 Bad Request:<\/strong> Invalid request.<\/li>\n<li><strong>401 Unauthorized:<\/strong> Missing <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<li><strong>403 Forbidden:<\/strong> No authorization for the resource.<\/li>\n<li><strong>404 Not Found:<\/strong> Resource not found.<\/li>\n<li><strong>500 Internal Server Error:<\/strong> Server-side error.<\/li>\n<\/ul>\n<\/div><div class=\"fusion-text fusion-text-5\"><h2 data-pm-slice=\"1 1 []\"><span class=\"ez-toc-section\" id=\"URI_design_for_REST_APIs\"><\/span><strong>URI design for REST APIs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-pm-slice=\"1 1 []\"><strong>RESTful APIs<\/strong> follow a clear and intuitive URI structure:<\/p>\n<ul data-spread=\"false\">\n<li>Resources are represented by nouns (<code>\/users<\/code>, <code>\/orders<\/code>).<\/li>\n<li>Hierarchies are separated with <code>\/<\/code> (<code>\/users\/\/orders<\/code>).<\/li>\n<li>Filters and queries use query parameters (<code>\/users?status=active<\/code>).<\/li>\n<li>No verbs in URIs (instead of <code>\/getUsers<\/code>, correct would be <code>\/users<\/code>).<\/li>\n<\/ul>\n<\/div><a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Apple Podcast Folge 18 - Confidential Computing - Teil 1 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-18-confidential-computing-teil-1\/id1684107786?i=1000655628820\" 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-6\" style=\"--awb-margin-top:4%;\"><h2 data-pm-slice=\"1 3 []\"><span class=\"ez-toc-section\" id=\"Security_and_authentication\"><\/span>Security and authentication<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>REST APIs require security mechanisms for access control:<\/p>\n<ul>\n<li><strong>OAuth 2.0<\/strong>: Standard protocol for authorization.<\/li>\n<li><strong>JWT (JSON Web Token)<\/strong>: Token-based authentication.<\/li>\n<li><strong>API keys<\/strong>: Static keys for API access.<\/li>\n<li><strong>HTTPS<\/strong>: Encryption for secure data transmission.<\/li>\n<li><strong>Rate limiting<\/strong>: Protection against API misuse.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"REST_and_IT_standards_standardized_interfaces_for_maximum_interoperability\"><\/span>REST and IT standards: standardized interfaces for maximum interoperability<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"93\" data-end=\"444\">REST is not an independent standard, but an architectural style that is based on the principles of the web. Nevertheless, there are numerous IT standards that structure, secure and optimize REST APIs. These standards ensure interoperability, security and efficient integration into modern software architectures.<\/p>\n<h3 data-start=\"446\" data-end=\"489\">HTTP &ndash; The foundation of REST<\/h3>\n<p data-start=\"490\" data-end=\"647\">REST is based entirely on HTTP (Hypertext Transfer Protocol), the most important protocol for communication on the web.<br>\nThe standard methods are:<\/p>\n<ul data-start=\"648\" data-end=\"835\">\n<li data-start=\"648\" data-end=\"675\"><strong data-start=\"650\" data-end=\"657\">GET<\/strong> &ndash; retrieve data<\/li>\n<li data-start=\"676\" data-end=\"703\"><strong data-start=\"678\" data-end=\"686\">POST<\/strong> &ndash; send data<\/li>\n<li data-start=\"704\" data-end=\"742\"><strong data-start=\"706\" data-end=\"713\">PUT<\/strong> &ndash; update resources<\/li>\n<li data-start=\"743\" data-end=\"778\"><strong data-start=\"745\" data-end=\"755\">DELETE<\/strong> &ndash; delete resources<\/li>\n<li data-start=\"779\" data-end=\"835\"><strong data-start=\"781\" data-end=\"790\">PATCH<\/strong> &ndash; partly update a resource<\/li>\n<\/ul>\n<p data-start=\"837\" data-end=\"974\">Since HTTP is used worldwide, REST APIs are <strong>natively compatible<\/strong> with any platform or <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 that supports HTTP.<\/p>\n<h3 data-start=\"976\" data-end=\"1042\">OpenAPI \/ Swagger &ndash; Standardized API description<\/h3>\n<p data-start=\"1043\" data-end=\"1402\">Since REST APIs can be designed differently, OpenAPI (formerly Swagger) helps to define a standardized specification for endpoints, parameters and responses.<\/p>\n<p><strong>OpenAPI enables:<\/strong><br>\n&#9989; Automatic API documentation<br>\n&#9989; Interactive API tests (Swagger UI, Postman)<br>\n&#9989; Code generation for client and server implementations<\/p>\n<h3 data-start=\"1404\" data-end=\"1473\">OAuth 2.0 &amp; JWT &ndash; Standardized API authentication<\/h3>\n<p>As REST APIs are often publicly accessible, they require secure authentication methods:<\/p>\n<ul>\n<li>OAuth 2.0 allows third-party applications to authenticate securely (e.g. login with Google\/Facebook).<\/li>\n<li>JSON Web Tokens (JWT) enable token-based authentication that is stateless and scales well with REST.<\/li>\n<\/ul>\n<h3 data-start=\"1819\" data-end=\"1863\"><span class=\"ez-toc-section\" id=\"API_governance_versioning\"><\/span>API governance &amp; versioning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To ensure compatibility over time, REST APIs use proven governance practices:<\/p>\n<ul>\n<li><strong>API versioning<\/strong> (v1, v2, &hellip;) to control changes<\/li>\n<li><strong>Rate limiting<\/strong> &amp; throttling to avoid overloading<\/li>\n<li><strong>CORS<\/strong> (Cross-Origin Resource Sharing) to control API accesses<\/li>\n<\/ul>\n<h3 data-start=\"2178\" data-end=\"2248\"><span class=\"ez-toc-section\" id=\"REST_vs_alternative_API-Standards_GraphQL_gRPC_SOAP\"><\/span>REST vs. alternative API-Standards (GraphQL, gRPC, SOAP)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>While REST is widely used, alternative standards exist for special use cases:<\/p>\n<ul>\n<li>GraphQL (queries exactly as required, no overfetching problems)<\/li>\n<li>gRPC (binary protocol for fast microservice communication, HTTP\/2-based)<\/li>\n<li>SOAP (older XML-based API protocol with strict standards, often used in enterprise systems)<\/li>\n<\/ul>\n<h3 data-start=\"2625\" data-end=\"2695\"><span class=\"ez-toc-section\" id=\"REST_as_a_flexible_standard_with_broad_support\"><\/span>REST as a flexible standard with broad support<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"2696\" data-end=\"3044\" data-is-last-node=\"\" data-is-only-node=\"\">REST APIs benefit from established web and security standards, which ensures their interoperability, scalability and security. Thanks to HTTP, OpenAPI, OAuth 2.0 and <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>, REST APIs are flexible, widely used and future-proof &ndash; and therefore remain a key technology in modern software development. &#128640;<\/p>\n<\/div><div class=\"fusion-video fusion-youtube\" style=\"--awb-max-width:1200px;--awb-max-height:675px;--awb-align-self:center;--awb-width:100%;\"><div class=\"video-shortcode\"><priv-fac-lite-youtube class=\"fusion-hidden lty-load\" data-privacy-type=\"youtube\" videoid=\"TMAyK4FC4YU\" params=\"wmode=transparent&amp;autoplay=1&amp;enablejsapi=1\" title=\"IT-Standards &ndash; Warum Interoperabilit&auml;t und Sicherheit unverzichtbar sind\" data-button-label=\"Play Video\" width=\"1200\" height=\"675\" data-thumbnail-size=\"auto\" data-no-cookie=\"on\"><\/priv-fac-lite-youtube><div class=\"fusion-privacy-placeholder\" style=\"width:1200px; height:675px;\" data-privacy-type=\"youtube\"><div class=\"fusion-privacy-placeholder-content\"><div class=\"fusion-privacy-label\">For privacy reasons YouTube needs your permission to be loaded. For more details, please see our <a class=\"privacy-policy-link\" href=\"https:\/\/rock-the-prototype.com\/datenschutzerklaerung\/\" rel=\"privacy-policy\">Datenschutzerkl&auml;rung<\/a>.<\/div><button data-privacy-type=\"youtube\" class=\"fusion-button button-default fusion-button-default-size button fusion-privacy-consent\">I Accept<\/button><\/div><\/div><\/div><\/div>\n<div class=\"fusion-text fusion-text-7\" style=\"--awb-margin-top:4%;\"><h2 data-pm-slice=\"1 3 []\"><span class=\"ez-toc-section\" id=\"Areas_of_application_for_REST_APIs\"><\/span><strong>Areas of application for REST APIs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-pm-slice=\"1 3 []\">REST APIs are widely used due to their flexibility:<\/p>\n<ul data-spread=\"false\">\n<li><strong>Web and mobile applications:<\/strong> Communication between frontend and backend.<\/li>\n<li><strong><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>:<\/strong> Integration of distributed systems.<\/li>\n<li><strong><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> services:<\/strong> Connection of external APIs such as AWS, Google Cloud.<\/li>\n<li><strong>IoT (Internet of Things):<\/strong> Control of networked devices.<\/li>\n<li><strong>Data integration:<\/strong> Exchange between systems in companies.<\/li>\n<\/ul>\n<\/div><a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Podcast Episode 1 - Idea generation and creativity in software development - Rock the Prototype - Software Development\" href=\"#\"><iframe style=\"width: 100%; max-width: 660px; overflow: hidden; border-radius: 10px;\" src=\"https:\/\/embed.podcasts.apple.com\/us\/podcast\/episode-1-idea-generation-and-creativity-in-software\/id1684835330?i=1000611051749\" 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-8\"><h2><span class=\"ez-toc-section\" id=\"REST_API_The_strengths_and_weaknesses_at_a_glance\"><\/span>REST API: The strengths and weaknesses at a glance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>REST APIs are the de facto standard for communication between distributed systems and form the backbone of modern web applications, microservices and mobile apps. However, like every technology, REST also has its strengths and weaknesses, which must be taken into account when making architectural decisions.<\/p>\n<p>REST APIs are without question the most widely used interface technology &ndash; but are they really the best choice for every use case?<\/p>\n<p>While their simplicity and standardization offer clear advantages, there are also challenges that come into play with complex architectures and modern requirements.<\/p>\n<p>Here you will find the most important advantages and disadvantages at a glance:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Advantages_of_REST_APIs\"><\/span>Advantages of REST APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#9989; Simple and widespread.<\/p>\n<p>&#9989; Uses standardized HTTP methods.<\/p>\n<p>&#9989; Platform- and language-independent.<\/p>\n<p>&#9989; Scalable thanks to stateless principle.<\/p>\n<p>&#9989; Well suited for public and internal APIs.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Platform_independence_broad_support\"><\/span>Platform independence &amp; broad support<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>REST is based on the open standards of the Internet (HTTP, JSON, XML), which means that almost any technology can consume RESTful APIs &ndash; from web and mobile applications to IoT devices and microservices.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Scalability_thanks_to_the_stateless_principle\"><\/span>Scalability thanks to the stateless principle<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Because each REST request does not store state, servers can scale more efficiently by processing requests independently. This is ideal for distributed systems that have to cope with high loads.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Simple_implementation_maintenance\"><\/span>Simple implementation &amp; maintenance<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>REST APIs can be developed and extended quickly using common frameworks. The standardized use of HTTP methods and status codes makes integration intuitive and easy to understand for developers.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Caching_for_performance_optimization\"><\/span>Caching for performance optimization<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>REST supports client and server caching, which reduces repeated requests and improves performance. This is particularly beneficial for APIs that provide frequently read data.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Flexibility_through_JSON_XML\"><\/span>Flexibility through JSON &amp; XML<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>REST APIs can provide data in different formats, most commonly in JSON (lightweight structure) or XML (structured and extensible). This enables adaptation to different system requirements.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"High_interoperability_integration\"><\/span>High interoperability &amp; integration<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>REST APIs are particularly well suited for integration between different applications. This makes them the preferred choice for external interfaces, Open APIs and public data services (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).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Disadvantages_of_REST_APIs\"><\/span>Disadvantages of REST APIs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#10060; Overfetching &amp; underfetching: clients receive too much or too little data.<\/p>\n<p>&#10060; No real-time communication (in contrast to WebSockets).<\/p>\n<p>&#10060; Missing schema definition (compared to GraphQL).<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Overhead_due_to_repeated_requests\"><\/span>Overhead due to repeated requests<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>As REST requests do not save any status, each request must transmit all the necessary information (e.g. authentication, session data) again. This can lead to a high overhead for complex applications.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Inefficiency_with_complex_data_structures\"><\/span>Inefficiency with complex data structures<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>REST APIs often deliver more data than is actually required (overfetching) or too little (underfetching), so that multiple requests are necessary. GraphQL solves this problem better by allowing well-defined queries.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Lack_of_real-time_functionality\"><\/span>Lack of real-time functionality<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>REST is a request-response-based model that does not support bidirectional communication. WebSockets or gRPC are better suited for real-time applications (e.g. chats, streaming).<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Lack_of_standardization_for_API_designs\"><\/span>Lack of standardization for API designs<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Although REST is an established concept, there is no fixed specification as to exactly how an API must be structured. This often leads to different design approaches, which makes the consistency and reusability of APIs more difficult.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Security_requires_additional_effort\"><\/span>Security requires additional effort<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>REST APIs require additional security measures as they are often publicly accessible. OAuth, JWT, API rate limiting and CORS are necessary to prevent misuse and unauthorized access.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Scaling_can_be_costly\"><\/span>Scaling can be costly<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>While REST scales well, efficient load balancing often requires additional components such as API gateways, load balancers and reverse proxies. This increases the complexity of the infrastructure.<\/p>\n<p>REST APIs are an essential component of modern software development. They enable efficient and scalable communication between systems and are used in web and cloud applications, microservices and IoT environments. Despite some disadvantages, they remain the preferred choice for many API architectures due to their simplicity and broad support.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Conclusion_When_is_REST_the_right_choice\"><\/span>Conclusion: When is REST the right choice?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>REST APIs are simple, flexible and proven, but not ideal for all scenarios. They are the right choice for:<\/p>\n<p>&#9989; Web and mobile applications that require a simple and scalable API<br>\n&#9989; Microservices that communicate with each other via standardized interfaces<br>\n&#9989; Public APIs that enable standardized use by third-party providers<br>\n&#9989; Data access that does not require real-time communication<\/p>\n<p>However, if real-time interactions, highly structured data queries or low latency are required, GraphQL, gRPC or WebSockets may be more suitable.<\/p>\n<p>REST is a strong foundation, but depending on the use case, it is worth taking a look at modern alternatives. &#128640;<\/p>\n<\/div><div class=\"fusion-video fusion-youtube\" style=\"--awb-max-width:1080px;--awb-max-height:608px;--awb-align-self:center;--awb-width:100%;\"><div class=\"video-shortcode\"><priv-fac-lite-youtube class=\"fusion-hidden lty-load\" data-privacy-type=\"youtube\" videoid=\"6so2bE9ZAD4\" params=\"wmode=transparent&amp;autoplay=1&amp;enablejsapi=1\" title=\"YouTube Tutorial: JSON verstehen in 5 Minuten - So nutzt du den JSON-Standard richtig f&uuml;r APIs, Web &amp; Software!\" data-button-label=\"Play Video\" width=\"1080\" height=\"608\" data-thumbnail-size=\"auto\" data-no-cookie=\"on\"><\/priv-fac-lite-youtube><div class=\"fusion-privacy-placeholder\" style=\"width:1080px; height:608px;\" data-privacy-type=\"youtube\"><div class=\"fusion-privacy-placeholder-content\"><div class=\"fusion-privacy-label\">For privacy reasons YouTube needs your permission to be loaded. For more details, please see our <a class=\"privacy-policy-link\" href=\"https:\/\/rock-the-prototype.com\/datenschutzerklaerung\/\" rel=\"privacy-policy\">Datenschutzerkl&auml;rung<\/a>.<\/div><button data-privacy-type=\"youtube\" class=\"fusion-button button-default fusion-button-default-size button fusion-privacy-consent\">I Accept<\/button><\/div><\/div><\/div><\/div>\n<div class=\"fusion-text fusion-text-9\"><h3>Rock the Prototype Podcast<\/h3>\n<p>The <strong>Rock the Prototype Podcast<\/strong> and the <strong>Rock the Prototype YouTube channel<\/strong> are the perfect place to go if you want to delve deeper into the world of web development, <a href=\"https:\/\/rock-the-prototype.com\/en\/prototyping-en\/prototyping\/\" target=\"_blank\" title=\"What is prototyping? 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. We offer you new technology trends that are really relevant &ndash; and with the Rock the Prototype format, you&rsquo;ll always find relevant content to expand your knowledge and take your skills to the next level!<\/p>\n<\/div>\n<a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Podcast Software Development - Idea generation and creativity in software development\" 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\/54PtfzZlt3gTfrxDcx4wrC?utm_source=generator\" width=\"100%\" height=\"352\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/a>\n<\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 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-1 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\"><a class=\"fusion-modal-text-link\" data-toggle=\"modal\" data-target=\".fusion-modal.Rock the Prototype - Software development &amp; Prototyping Podcast iTunes\" href=\"#\"><iframe id=\"embedPlayer\" style=\"width: 100%; max-width: 660px; overflow: hidden; border-radius: 10px; transform: translateZ(0px); animation: 2s ease 0s 6 normal none running loading-indicator; background-color: #e4e4e4;\" src=\"https:\/\/embed.podcasts.apple.com\/us\/podcast\/rock-the-prototype-software-development-prototyping\/id1684835330?itsct=podcast_box_player&amp;itscg=30200&amp;ls=1&amp;theme=auto\" height=\"450px\" frameborder=\"0\" sandbox=\"allow-forms allow-popups allow-same-origin allow-scripts allow-top-navigation-by-user-activation\"><\/iframe><\/a><\/div><\/div><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>What is a REST API? 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