Werk #10291: New Checkmk REST-API introduced

With the Checkmk REST-API you can execute tasks you would normally perform manually in Checkmk's GUI on the Checkmk server via custom made scripts.

REST stands for REpresentational State Transfer and describes an architecture for the exchange of data on distributed systems - especially for Web services. The implementation of this REST-API is done via the HTTP/1.1 protocol, where resources are addressed via URIs and accessed with HTTP methods (GET, PUT, POST, DELETE).

The API is documented in a machine-readable schema and a human-readable document in English, with all resources, their input and output parameters and the associated value ranges. The API is specified in the OpenAPI 3.x specification format.

The documentation for the API can be accessed in Checkmk's GUI under "Navigation > Help > REST-API Documentation". The specification file can be downloaded by clicking on the "Download OpenAPI Specification" button at the top of the documentation.

A chapter in the Checkmk Manual specific to the REST-API is currently being created and will be ready for the 2.0.0 release.

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