OpenAPI allows to include examples in the API definition. FLAT uses response examples to implement an easy to use mock server.
Mocking can be activated by the client with the HTTP header
If given, FLAT will look for the
examples of the API path's
responses section for an example with a content-type that matches the inbound
Mocked responses from upstream work just the same way.
To avoid accidentally running on mocks in production, mocking has to be explicitly activated with the
FLAT_ALLOW_MOCKING environment variable (default