How to test API?

HOW TO TEST API? API automation testing should cover at least following testing methods apart from usual SDLC process Discovery testing The test group should manually execute the set of calls documented in the API like verifying that a specific resource exposed by the APl can be listed, created and deleted as appropriate. Usability testing This testing verifies whether the API is functional and user-friendly. And does API integrates well with another platform as well. Security testing This testing includes what type of authentication is required and whether sensitive data is encrypted over HTTP or both. Automated testing API testing should culminate in the creation of a set of scripts or a tool that can be used to execute the API regularly. Documentation The test team has to make sure that the documentation is adequate and provides enough information to interact with the API. Documentation should be a part of the final deliverable. Newsdata.io in f