errors

There are two kinds of errors which can occur during processing of API requests. First, there may be functional errors, such as invalid parameters or access to resources which don't exist. And there may be processing errors which occur within the system.

Functional errors are indicated by 4xx response codes:

400:	Parameter or data error
401:	Authentication error
403:	Access restricted error
404:	Resource not found

Processing errors are indicated by a 500 response code.

All errors are returned with JSON data containing a detailed status code and a human-readable message.

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