Metadata API Reference: Remote schemas (v2.0 and above)

Introduction

Add/Remove a remote GraphQL server as remote schema in Hasura GraphQL engine.

Supported from

The metadata API is supported for versions v2.0.0 and above and replaces the older schema/metadata API.

add_remote_schema

add_remote_schema is used to add a remote GraphQL server as remote schema. GraphQL engine stitches it’s schema with existing.

An example request as follows:

POST /v1/metadata HTTP/1.1
Content-Type: application/json
X-Hasura-Role: admin

{
    "type": "add_remote_schema",
    "args": {
        "name": "my remote schema",
        "definition": {
            "url": "https://remote-server.com/graphql",
            "headers": [{"name": "X-Server-Request-From", "value": "Hasura"}],
            "forward_client_headers": false,
            "timeout_seconds": 60
        },
        "comment": "some optional comment"
    }
}
Key Required Schema Description
name true RemoteSchemaName Name of the remote schema
definition true RemoteSchemaDef Definition for the remote schema
comment false Text comment

remove_remote_schema

remove_remote_schema is used to delete a remote schema. GraphQL engine de-stitches it’s schema.

An example request as follows:

POST /v1/metadata HTTP/1.1
Content-Type: application/json
X-Hasura-Role: admin

{
    "type": "remove_remote_schema",
    "args": {
        "name": "my remote schema"
    }
}
Key Required Schema Description
name true RemoteSchemaName Name of the remote schema

reload_remote_schema

reload_remote_schema is used to refresh schema of the remote server. GraphQL engine refetches schema from server and stitches.

An example request as follows:

POST /v1/metadata HTTP/1.1
Content-Type: application/json
X-Hasura-Role: admin

{
    "type": "reload_remote_schema",
    "args": {
        "name": "my remote schema"
    }
}
Key Required Schema Description
name true RemoteSchemaName Name of the remote schema
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