Module codes 

Stable values for errors[].extensions.code.

Names follow the conventions of Apollo Server and GraphQL Yoga where one exists, so off-the-shelf clients recognise them.

Constants

BAD_REQUEST

The HTTP request itself is malformed (bad JSON, missing query, …).

BAD_USER_INPUT

400 — malformed input from the client.

BATCH_REJECTED

Batching is off, or the batch is larger than max_operations.

CLIENT_ERROR

Any other 4xx.

CONFLICT

409 — a conflicting concurrent change.

CSRF_PREVENTION

A multipart request without a preflight-forcing header.

FORBIDDEN

403 — authenticated but not allowed.

GRAPHQL_PARSE_FAILED

The document is not syntactically valid GraphQL.

GRAPHQL_VALIDATION_FAILED

The document does not validate against the schema.

INTERNAL_SERVER_ERROR

Any other 5xx, and every masked unexpected error.

INTROSPECTION_DISABLED

__schema/__type was selected while introspection is off.

METHOD_NOT_ALLOWED

A mutation or subscription was sent over GET.

NOT_ACCEPTABLE

The request’s Accept header names no media type this endpoint serves.

NOT_FOUND

404 — the addressed entity does not exist.

OPERATION_NOT_ALLOWLISTED

Trusted-documents mode refused a document not in the manifest.

OPERATION_TIMEOUT

The operation did not finish within timeout_ms.

PAYLOAD_TOO_LARGE

The request body is larger than allowed.

PERSISTED_QUERY_HASH_MISMATCH

The document text does not hash to the hash the client sent.

PERSISTED_QUERY_NOT_FOUND

A hash-only request named a document the server does not have.

PERSISTED_QUERY_NOT_SUPPORTED

A hash-only request reached a server with persisted queries off.

QUERY_LIMIT_EXCEEDED

The document exceeds a configured static-analysis limit (extensions.limit, extensions.max, extensions.actual say which).

RATE_LIMITED

429 — rate limited.

SERVICE_UNAVAILABLE

503 — a dependency is unavailable; retrying later may succeed.

TOO_MANY_CONNECTIONS

The endpoint is at its concurrent-connection limit.

UNAUTHENTICATED

401 — no or invalid credentials.

UNSUPPORTED_MEDIA_TYPE

The request’s Content-Type is not one this endpoint accepts.

VALIDATION_FAILED

422 — the model’s validation rules rejected the input.