graphql-engine/docs/graphql/manual/api-reference/index.rst

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.. meta::
:description: Hasura API reference
:keywords: hasura, docs, API, API reference
.. _api_reference:
API Reference
=============
.. contents:: Table of contents
:backlinks: none
:depth: 1
:local:
Available APIs
--------------
+-----------------+-----------------------------------------+------------------+
| API | Endpoint | Access |
+=================+=========================================+==================+
| GraphQL | :ref:`/v1/graphql <graphql_api>` | Permission rules |
+-----------------+-----------------------------------------+------------------+
| Relay | :ref:`/v1/relay <relay_api>` | Permission rules |
+-----------------+-----------------------------------------+------------------+
| Legacy GraphQL | :ref:`/v1alpha1/graphql <graphql_api>` | Permission rules |
+-----------------+-----------------------------------------+------------------+
| Schema/Metadata | :ref:`/v1/query <schema_metadata_api>` | Admin only |
+-----------------+-----------------------------------------+------------------+
| Version | :ref:`/v1/version <version_api>` | Public |
+-----------------+-----------------------------------------+------------------+
| Health | :ref:`/healthz <health_api>` | Public |
+-----------------+-----------------------------------------+------------------+
| PG Dump | :ref:`/v1alpha1/pg_dump <pg_dump_api>` | Admin only |
+-----------------+-----------------------------------------+------------------+
| Config | :ref:`/v1alpha1/config <config_api>` | Admin only |
+-----------------+-----------------------------------------+------------------+
| Explain | :ref:`/v1/graphql/explain <explain_api>`| Admin only |
+-----------------+-----------------------------------------+------------------+
.. _graphql_api:
GraphQL API
^^^^^^^^^^^
All GraphQL requests for queries, subscriptions and mutations are made to the GraphQL API.
See details at :ref:`api_reference_graphql`.
.. _relay_api:
Relay API
^^^^^^^^^
Hasura exposes a Relay schema for GraphQL requests for queries, subscriptions and mutations.
See docs at :ref:`relay_schema`.
.. _schema_metadata_api:
Schema / metadata API
^^^^^^^^^^^^^^^^^^^^^
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 :ref:`metadata_apis`.
.. _version_api:
Version API
^^^^^^^^^^^
The ``/v1/version`` is a public endpoint that responds with the current server version in JSON format.
See details at :ref:`version_api_reference`.
.. _health_api:
Health check API
^^^^^^^^^^^^^^^^
The ``/healthz`` is a public endpoint that returns the server health status.
See details at :ref:`health_api_reference`.
.. _pg_dump_api:
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 :ref:`pg_dump_api_reference`.
.. _config_api:
Config API
^^^^^^^^^^
``v1alpha1/config`` is an admin-only endpoint to get the current server
configuration.
See details at :ref:`config_api_reference`.
.. _explain_api:
Explain API
^^^^^^^^^^^
``v1/graphql/explain`` returns the Postgres plan for a query or subscription based
on the defined permissions.
See details at :ref:`explain_api_reference`.
Supported PostgreSQL types
--------------------------
You can refer to the following to know about all PostgreSQL types supported by the Hasura GraphQL engine:
- :ref:`Supported PostgreSQL types <api_postgres_types>`
.. toctree::
:maxdepth: 1
:hidden:
GraphQL API <graphql-api/index>
Schema / Metadata APIs <schema-metadata-api/index>
Version API <version>
Health check API <health>
PG Dump API <pgdump>
Config API <config>
Explain API <explain>
Supported PostgreSQL types <postgresql-types>