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Version: 0.22

Exceptions reference

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

GraphQLFileSyntaxError​

class GraphQLFileSyntaxError(Exception):
    ...

Raised by load_schema_from_path when loaded GraphQL file has invalid syntax.

Constructor​

def __init__(self, file_path: Union[str, os.PathLike], message: str):
    ...

Initializes the GraphQLFileSyntaxError with file name and error.

Required arguments​

file_path: a str or PathLike object pointing to a file that failed to validate.

message: a str with validation message.

Methods​

format_message​

def format_message(
    self,
    file_path: Union[str, os.PathLike],
    message: str,
) -> None:
    ...

Builds final error message from path to schema file and error message.

Returns str with final error message.

Required arguments​

file_path: a str or PathLike object pointing to a file that failed to validate.

message: a str with validation message.

__str__​

def __str__(self) -> None:
    ...

Returns error message.

HttpBadRequestError​

class HttpBadRequestError(HttpError):
    ...

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

HttpError​

class HttpError(Exception):
    ...

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

Constructor​

def __init__(self, message: Optional[str] = None):
    ...

Initializes the HttpError with optional error message.

Optional arguments​

message: a str with error message to return in response body or None.

WebSocketConnectionError​

class WebSocketConnectionError(Exception):
    ...

Special error class enabling custom error reporting for on_connect

Constructor​

def __init__(self, payload: Optional[Union[dict, str]] = None):
    ...