Gateway API

The REST API for Trino Gateway can be used to update routing configuration for the Trino clusters. Note that the API calls do not perform actions on the clusters themselves.

The example commands are for a Trino Gateway server running at http://localhost:8080.

If there are duplicate proxyTo URLs in the configuration, the Name in the Query History page of the UI might not show correctly.

Add or update a Trino cluster

curl -X POST http://localhost:8080/entity?entityType=GATEWAY_BACKEND \
 -d '{  "name": "trino-3",
        "proxyTo": "http://localhost:8083",
        "active": true,
        "routingGroup": "adhoc"
    }'

If the Trino cluster URL is different from the proxyTo URL, for example if they are internal and external hostnames used, you can use the optional externalUrl field to override the link in the Active Backends page.

curl -X POST http://localhost:8080/entity?entityType=GATEWAY_BACKEND \
 -d '{  "name": "trino-3",
        "proxyTo": "http://localhost:8083",
        "active": true,
        "routingGroup": "adhoc",
        "externalUrl": "http://localhost:8084"
    }'

List all Trino clusters

curl -X GET http://localhost:8080/entity/GATEWAY_BACKEND

Returns a JSON array of Trino cluster:

[
    {
        "name": "trino-1",
        "proxyTo": "http://localhost:8081",
        "active": true,
        "routingGroup": "adhoc",
        "externalUrl": "http://localhost:8081"
    },
    {
        "name": "trino-2",
        "proxyTo": "http://localhost:8082",
        "active": true,
        "routingGroup": "adhoc",
        "externalUrl": "http://localhost:8082"
    },
    {
        "name": "trino-3",
        "proxyTo": "http://localhost:8083",
        "active": true,
        "routingGroup": "adhoc",
        "externalUrl": "http://localhost:8084"
    }
]

Delete a Trino cluster

curl -X POST -d "trino3" http://localhost:8080/gateway/backend/modify/delete

Deactivate a Trino cluster

curl -X POST http://localhost:8080/gateway/backend/deactivate/trino-2

List all active Trino clusters

curl -X GET http://localhost:8080/gateway/backend/active

Returns a JSON array of active Trino clusters:

[
    {
        "name": "trino-1",
        "proxyTo": "http://localhost:8081",
        "active": true,
        "routingGroup": "adhoc",
        "externalUrl": "http://localhost:8081"
    }
]

Activate a Trino cluster

curl -X POST http://localhost:8080/gateway/backend/activate/trino-2

Update routing rules

The API can be used to programmatically update the routing rules. Rule are updated based on the rule name. Storage of the rules must use a writeable file and the configuration 'rulesType: FILE'.

For this feature to work with multiple replicas of the Trino Gateway, you must provide a shared storage that supports file locking for the routing rules file. If multiple replicas are used with local storage, then rules get out of sync when updated.

curl -X POST http://localhost:8080/webapp/updateRoutingRules \
 -H 'Content-Type: application/json' \
 -d '{  "name": "trino-rule",
        "description": "updated rule description",
        "priority": 0,
        "actions": ["updated action"],
        "condition": "updated condition"
    }'