Exceptions reference

Ariadne defines some custom exception types that can be imported from ariadne.exceptions:

`GraphQLFileSyntaxError`

Raised by the load_schema_from_path if any of loaded gql files contains syntax error.

Base class for HTTP errors raised inside the ASGI and WSGI servers.

HTTP request did not contain the data required to execute GraphQL query.

HTTP request was made with a HTTP method unsupported by the server.