Checking API availability
Before implementing any API calls, it's important to ensure that the API is available and accessible to your application. To do so, authorize your account and retrieve a JSON token.
To check the API availability, follow the Authorizing an account tutorial.
If the JSON token is retrieved successfully, then the FIB API is available and you can proceed with Calling API endpoints.
Otherwise, a response with an error code is displayed indicating the issue that needs to be resolved before proceeding.
For a list of possible responses, see API Specification > Authorizing a user in the system: Responses.
NOTE
There are a variety of external issues that may be preventing you from successfully retrieving a JSON token. Examples include blocked outgoing HTTP requests and no Internet connection.