REST API reference

REST API provides the following endpoints.

`/v1/load`

Get the data for a query.

Parameter	Description
`query`	Either a single URL encoded Cube Query, or an array of queries
`queryType`	If multiple queries are passed in `query` for data blending, this must be set to `multi`

Response

query - The query passed via params. It can be an array of queries and in such case it will be treated as a Data Blending query.
data - Formatted dataset of query results.
annotation - Metadata for query. Contains descriptions for all query items.
- title - Human readable title from the data model.
- shortTitle - Short title for visualization usage (ex. chart overlay)
- type - Data type
total - The total number of rows returned for the query. Useful for paginating results.

Example request:

# Request with http method GET
curl \
  -H "Authorization: EXAMPLE-API-TOKEN" \
  -G \
  --data-urlencode 'query={"measures":["users.count"]}' \
  http://localhost:4000/cubejs-api/v1/load

# Request with http method POST
# Use POST to fix problem with query length limits
curl \
 -X POST  \
 -H "Content-Type: application/json" \
 -H "Authorization: EXAMPLE-API-TOKEN" \
 --data '{"query": {"measures":["users.count"]}}' \
 http://localhost:4000/cubejs-api/v1/load

Example response:

{
  "query": {
    "measures": ["users.count"],
    "filters": [],
    "timezone": "UTC",
    "dimensions": [],
    "timeDimensions": []
  },
  "data": [
    {
      "users.count": "700"
    }
  ],
  "annotation": {
    "measures": {
      "users.count": {
        "title": "Users Count",
        "shortTitle": "Count",
        "type": "number"
      }
    },
    "dimensions": {},
    "segments": {},
    "timeDimensions": {}
  }
}

Currently all fetched numericals are returned in the same format as driver returns it without any additional processing. Most of drivers return numerical values as strings instead of javascript integer or float to ensure there's no loss of significance. Client code should take care of parsing such numerical values.

`/v1/sql`

Get the SQL Code generated by Cube to be executed in the database.

Parameter	Description
query	URLencoded Cube Query

Response

sql - JSON Object with the following properties
- sql - Formatted SQL query with parameters
- order - Order fields and direction used in SQL query
- cacheKeyQueries - Key names and TTL of Cube data cache
- preAggregations - SQL queries used to build pre-aggregation tables

Example request:

curl \
  -H "Authorization: EXAMPLE-API-TOKEN" \
  -G \
  --data-urlencode 'query={"measures":["users.count"],
  "timeDimensions":[{"dimension": "users.createdAt","granularity":"day","dateRange":["2019-03-01","2019-03-31"]}]}' \
  http://localhost:4000/cubejs-api/v1/sql

Example response:

{
  "sql": {
    "sql": [
      "SELECT\n      date_trunc('day', (users.created_at::timestamptz AT TIME ZONE 'UTC')) \"users.created_at_date\", count(users.id) \"users.count\"\n    FROM\n      public.users AS users\n  WHERE (users.created_at >= $1::timestamptz AND users.created_at <= $2::timestamptz) GROUP BY 1 ORDER BY 1 ASC LIMIT 10000",
      ["2019-03-01T00:00:00Z", "2019-03-31T23:59:59Z"]
    ],
    "timeDimensionAlias": "users.created_at_date",
    "timeDimensionField": "users.createdAt",
    "order": [
      {
        "id": "users.createdAt",
        "desc": false
      }
    ],
    "cacheKeyQueries": {
      "queries": [
        ["select max(users.created_at) from public.users AS users", []]
      ],
      "renewalThreshold": 21600
    },
    "preAggregations": []
  }
}

Note that a generated query can contain placeholders, e.g., ? or $1, for parameters that Cube passes to an underlying data source driver later when executing the query.

`/v1/meta`

Get meta-information for cubes and views defined in the data model. Information about cubes and views with public: false will not be returned.

Response

cubes - Array of cubes and views
- name - Codename of the cube/view
- type - Type can be "cube" or "view"
- title - Human-readable cube/view name
- meta - Custom metadata
- measures - Array of measures in this cube/view
- dimensions - Array of dimensions in this cube/view
- segments - Array of segments in this cube/view
- connectedComponent - An integer representing a join relationship. If the same value is returned for two cubes, then there is at least one join path between them.

Example request:

curl \
  -H "Authorization: EXAMPLE-API-TOKEN" \
  -G \
  http://localhost:4000/cubejs-api/v1/meta

Example response:

{
  "cubes": [
    {
      "name": "Users",
      "title": "Users",
      "meta": {
          "someKey": "someValue",
          "nested": {
            "someKey": "someValue"
          }
      },
      "connectedComponent": 1,
      "measures": [
        {
          "name": "users.count",
          "title": "Users Count",
          "shortTitle": "Count",
          "aliasName": "users.count",
          "type": "number",
          "aggType": "count",
          "drillMembers": ["users.id", "users.city", "users.createdAt"]
        }
      ],
      "dimensions": [
        {
          "name": "users.city",
          "title": "Users City",
          "type": "string",
          "aliasName": "users.city",
          "shortTitle": "City",
          "suggestFilterValues": true
        }
      ],
      "segments": []
    }
  ]
}

`/v1/pre-aggregations/jobs`

Trigger pre-aggregation build jobs or retrieve statuses of such jobs.

Triggering jobs

Parameter	Description	Required
`action`	Use `post` to trigger jobs	✅
`selector.contexts`	Array of objects, each containing a `securityContext`	✅
`selector.timezones`	Array of timezones	✅
`selector.datasources`	Array of data source names which have pre-aggregations defined	❌
`selector.cubes`	Array of cube names which contain pre-aggregations	❌
`selector.preAggregations`	Array of pre-aggregation names	❌

To trigger pre-aggregation builds, send a POST request with a payload including post as the action and selector properties. The response will contain an array of tokens (identifiers) of triggered jobs.

Example request triggering builds of all pre-aggregations defined in all cubes using an empty security context and a UTC timezone:

curl \
  -d '{
    "action": "post",
    "selector": {
      "contexts": [{ "securityContext": {} }],
      "timezones": ["UTC"]
    }
  }' \
  -H "Authorization: EXAMPLE-API-TOKEN" \
  -H "Content-Type: application/json" \
  -X POST \
  https://localhost:4000/cubejs-api/v1/pre-aggregations/jobs

Example request triggering builds of all pre-aggregations defined in the orders cube using an empty security context and a UTC timezone:

curl \
  -d '{
    "action": "post",
    "selector": {
      "contexts": [{ "securityContext": {} }],
      "timezones": ["UTC"],
      "cubes": ["orders"]
    }
  }' \
  -H "Authorization: EXAMPLE-API-TOKEN" \
  -H "Content-Type: application/json" \
  -X POST \
  https://localhost:4000/cubejs-api/v1/pre-aggregations/jobs

Example request triggering builds of the main pre-aggregation defined in the orders cube using an empty security context and a UTC timezone:

curl \
  -d '{
    "action": "post",
    "selector": {
      "contexts": [{ "securityContext": {} }],
      "timezones": ["UTC"],
      "preAggregations": ["orders.main"]
    }
  }' \
  -H "Authorization: EXAMPLE-API-TOKEN" \
  -H "Content-Type: application/json" \
  -X POST \
  https://localhost:4000/cubejs-api/v1/pre-aggregations/jobs

Example response:

[
  "e9a6a0c55885cea5371348500ce7d7dc",
  "d1329b6c8d152e734fc4dcf7307b1b58",
  "6f4ea38373663fffc4334a576574845b",
  "ea903b10634b2f3141b35a2529870e89"
]

Retrieving statuses of jobs

Parameter	Description	Required
`action`	Use `get` to retrieve statuses of previously triggered jobs	✅
`tokens`	Array of `tokens` returned when triggering jobs	✅
`resType`	Use `object` to get a JSON object instead of an array in response	❌

To retrieve statuses of previously triggered jobs, send a POST request with a payload including the tokens property.

In the status property of the payload, you can get the following statuses:

Status	Description
`scheduled`	The job hasn't run yet
`processing`	The job is currently running
`missing_partition`	The job has failed
`done`	The job has successfully completed

Example request:

curl \
  -d '{
    "action": "get",
    "tokens": [
      "e9a6a0c55885cea5371348500ce7d7dc",
      "d1329b6c8d152e734fc4dcf7307b1b58"
    ]
  }' \
  -H "Authorization: EXAMPLE-API-TOKEN" \
  -H "Content-Type: application/json" \
  -X POST \
  https://localhost:4000/cubejs-api/v1/pre-aggregations/jobs

Example response:

[
  {
    "token": "e9a6a0c55885cea5371348500ce7d7dc",
    "table": "prod_pre_aggregations.orders_category_and_date_hod0x3hf_03krd5ns_1hop3hn",
    "status": "processing",
    "selector": {
      "cubes": ["orders"],
      "preAggregations": ["orders.category_and_date"],
      "contexts": [{ "securityContext": { "tenant": "tenant_1" } }],
      "timezones": ["UTC"],
      "dataSources": ["default"]
    }
  },
  {
    "token": "d1329b6c8d152e734fc4dcf7307b1b58",
    "table": "prod_pre_aggregations.orders_category_and_date_mzfp445f_r2h2isa5_1hop3hn",
    "status": "processing",
    "selector": {
      "cubes": ["orders"],
      "preAggregations": ["orders.category_and_date"],
      "contexts": [{ "securityContext": { "tenant": "tenant_1" } }],
      "timezones": ["UTC"],
      "dataSources": ["default"]
    }
  }
]

`/readyz`

Returns the ready state of the deployment.

Single-tenant: Ensures the orchestration layer is operational and tests the connection to the default dataSource.

Multi-tenant: Tests connections per-tenant. If no connections exist, it will report as successful.

Example of a successful request:

curl -i http://localhost:4000/readyz
HTTP/1.1 200 OK
X-Powered-By: Express
Access-Control-Allow-Origin: *
Content-Type: application/json; charset=utf-8
Content-Length: 19
ETag: W/"13-MyluqxoYxC0tUxBeZCnbaWYVLhg"
Date: Mon, 18 Jan 2021 15:39:57 GMT
Connection: keep-alive
Keep-Alive: timeout=5

{"health":"HEALTH"}

Example of a failed response:

curl -i http://localhost:4000/readyz
HTTP/1.1 500 Internal Server Error
X-Powered-By: Express
Access-Control-Allow-Origin: *
Content-Type: application/json; charset=utf-8
Content-Length: 19
ETag: W/"13-MyluqxoYxC0tUxBeZCnbaWYVLhg"
Date: Mon, 18 Jan 2021 15:39:57 GMT
Connection: keep-alive
Keep-Alive: timeout=5

{"health":"DOWN"}

`/livez`

Returns the liveness state of the deployment. This is confirmed by testing any existing connections to dataSource. If no connections exist, it will report as successful.

Example of a successful response:

curl -i http://localhost:4000/livez
HTTP/1.1 200 OK
X-Powered-By: Express
Access-Control-Allow-Origin: *
Content-Type: application/json; charset=utf-8
Content-Length: 19
ETag: W/"13-MyluqxoYxC0tUxBeZCnbaWYVLhg"
Date: Mon, 18 Jan 2021 15:39:57 GMT
Connection: keep-alive
Keep-Alive: timeout=5

{"health":"HEALTH"}

Example of a failed response:

curl -i http://localhost:4000/livez
HTTP/1.1 500 Internal Server Error
X-Powered-By: Express
Access-Control-Allow-Origin: *
Content-Type: application/json; charset=utf-8
Content-Length: 19
ETag: W/"13-MyluqxoYxC0tUxBeZCnbaWYVLhg"
Date: Mon, 18 Jan 2021 15:39:57 GMT
Connection: keep-alive
Keep-Alive: timeout=5

{"health":"DOWN"}

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