# REST API Guidelines

- [Introduction](/api-guidelines/rest-api-guidelines/rest.md)
- [Core REST Principles](/api-guidelines/rest-api-guidelines/core-principles.md)
- [OpenAPI Specification](/api-guidelines/rest-api-guidelines/core-principles/openapi-specification.md)
- [API Design Platform](/api-guidelines/rest-api-guidelines/core-principles/design-platform.md)
- [Design Maturity](/api-guidelines/rest-api-guidelines/core-principles/design-maturity.md)
- [Testing](/api-guidelines/rest-api-guidelines/core-principles/testing.md)
- [Protocol](/api-guidelines/rest-api-guidelines/protocol.md)
- [HTTP](/api-guidelines/rest-api-guidelines/protocol/http.md)
- [TLS](/api-guidelines/rest-api-guidelines/protocol/tls.md)
- [Separate Concerns](/api-guidelines/rest-api-guidelines/protocol/separate-concerns.md)
- [Request Methods](/api-guidelines/rest-api-guidelines/protocol/use-appropriate-methods.md)
- [Status Codes](/api-guidelines/rest-api-guidelines/protocol/use-appropriate-status-codes.md)
- [Message](/api-guidelines/rest-api-guidelines/message.md)
- [Message Formats](/api-guidelines/rest-api-guidelines/message/message-formats.md)
- [Content Negotiation](/api-guidelines/rest-api-guidelines/message/content-negotiation.md)
- [HAL](/api-guidelines/rest-api-guidelines/message/hal.md)
- [Problem Detail](/api-guidelines/rest-api-guidelines/message/error-reporting.md)
- [Foreign Key Relations](/api-guidelines/rest-api-guidelines/message/foreign-key-relations.md)
- [Application](/api-guidelines/rest-api-guidelines/application.md)
- [Corporate Data Model](/api-guidelines/rest-api-guidelines/application/harmonize-data.md)
- [Common Data Types](/api-guidelines/rest-api-guidelines/application/common-data-types.md)
- [Execution](/api-guidelines/rest-api-guidelines/execution.md)
- [Pagination](/api-guidelines/rest-api-guidelines/execution/pagination.md)
- [Long Running Tasks](/api-guidelines/rest-api-guidelines/execution/long-running-tasks.md)
- [Polling](/api-guidelines/rest-api-guidelines/execution/long-running-tasks/polling.md)
- [Callback](/api-guidelines/rest-api-guidelines/execution/long-running-tasks/callback.md)
- [Files Upload](/api-guidelines/rest-api-guidelines/execution/long-running-tasks/files-upload.md)
- [Batch Operations](/api-guidelines/rest-api-guidelines/execution/batch-operations.md)
- [Search Requests](/api-guidelines/rest-api-guidelines/execution/search-requests.md)
- [Query Requests with Large Inputs](/api-guidelines/rest-api-guidelines/execution/query-requests-with-large-inputs.md)
- [Choosing Fields and Embedded Resources](/api-guidelines/rest-api-guidelines/execution/choosing-fields-and-embedded-resoruces.md)
- [Localization](/api-guidelines/rest-api-guidelines/execution/localization.md)
- [Rate Limiting](/api-guidelines/rest-api-guidelines/execution/rate-limiting.md)
- [Caching](/api-guidelines/rest-api-guidelines/execution/caching.md)
- [Testing Enviroments](/api-guidelines/rest-api-guidelines/execution/testing-enviroments.md)
- [Evolution](/api-guidelines/rest-api-guidelines/evolution.md)
- [Naming Conventions](/api-guidelines/rest-api-guidelines/evolution/naming-conventions.md)
- [Reserved Identifiers](/api-guidelines/rest-api-guidelines/evolution/reserved-identifiers.md)
- [URI Structure](/api-guidelines/rest-api-guidelines/evolution/uri-structure.md)
- [Changes and Versioning](/api-guidelines/rest-api-guidelines/evolution/versioning.md)
- [Phasing out Old Versions](/api-guidelines/rest-api-guidelines/evolution/phasing-out-old-versions.md)
- [Guides](/api-guidelines/rest-api-guidelines/guides.md)
- [API Testing CI Environment](/api-guidelines/rest-api-guidelines/guides/api-testing-ci-environment.md)
- [Complete API Development](/api-guidelines/rest-api-guidelines/guides/complete-api-development.md)
- [API Clients](/api-guidelines/rest-api-guidelines/clients.md)
- [Loose Coupling](/api-guidelines/rest-api-guidelines/clients/loose-coupling.md)
- [Further References](/api-guidelines/rest-api-guidelines/miscellaneous.md)