API Reference¶

GraphQL API¶

All GraphQL requests for queries, subscriptions and mutations are made to the GraphQL API.

See details at GraphQL API Reference.

Relay API¶

Hasura exposes a Relay schema for GraphQL requests for queries, subscriptions and mutations.

See docs at Postgres: Relay schema.

See details at Relay GraphQL API Reference.

Schema API¶

Hasura exposes a schema API for directly executing SQL on the underlying Postgres.

This is primarily intended to be used as an admin API to manage the Hasura schema.

See details at Schema API Reference.

Metadata API¶

Hasura exposes a metadata API for managing metadata.

This is primarily intended to be used as an admin API to manage the Hasura metadata.

See details at Metadata API Reference.

Schema / metadata API (Deprecated)¶

Hasura exposes a schema / metadata API for managing metadata for permissions/relationships or for directly executing SQL on the underlying Postgres.

This is primarily intended to be used as an admin API to manage the Hasura schema and metadata.

See details at Schema / Metadata API Reference (Deprecated) .

RESTified GraphQL API¶

Hasura allows saved GraphQL queries and mutations to be accesed through a REST interface.

See details at RESTified GraphQL Endpoints API Reference.

Version API¶

The /v1/version is a public endpoint that responds with the current server version in JSON format.

See details at Version API Reference.

Health check API¶

The /healthz is a public endpoint that returns the server health status. There’s also /hasura/healthz available as an alternative, which mirrors /healthz completely.

See details at Health check API Reference.

pg_dump API¶

The /v1alpha1/pg_dump is an admin-only endpoint that can be used to execute pg_dump on the Postgres instance connected to Hasura. The pg_dump CLI tool’s argument can be passed as a POST request body to the API and the response is sent back to the client.

See details at PG Dump API Reference.

Config API¶

v1alpha1/config is an admin-only endpoint to get the current server configuration.

See details at Config API Reference.

Explain API¶

v1/graphql/explain returns the Postgres plan for a query or subscription based on the defined permissions.

See details at Explain API Reference.