BadGateway generates a 502 error.

BadRequest generates a 400 error.

Conflict generates a 409 error.

Equal tries to compare errors.

Forbidden generates a 403 error.

FromErr try to convert go error go *Error.

GatewayTimeout generates a 504 error.

InternalServerError generates a 500 error.

MethodNotAllowed generates a 405 error.

New generates a custom error.

NotFound generates a 404 error.

NotImplemented generates a 501 error.

Parse tries to parse a JSON string into an error.

ServiceUnavailable generates a 503 error.

Timeout generates a 408 error.

Unauthorized generates a 401 error.