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POST
/
timeseries
/
byids
JavaScript SDK
const timeseries = await client.timeseries.retrieve([
  { id: 123 },
  { externalId: 'abc' }
]);
{
  "items": [
    {
      "id": 4503599627370496,
      "isString": true,
      "type": "<string>",
      "isStep": true,
      "createdTime": 1730204346000,
      "lastUpdatedTime": 1730204346000,
      "externalId": "<string>",
      "instanceId": {
        "space": "<string>",
        "externalId": "<string>"
      },
      "name": "<string>",
      "metadata": {},
      "unit": "<string>",
      "unitExternalId": "<string>",
      "assetId": 4503599627370496,
      "description": "<string>",
      "securityCategories": [
        123
      ],
      "dataSetId": 4503599627370496
    }
  ]
}

Documentation Index

Fetch the complete documentation index at: https://docs.cognite.com/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

Access token issued by the CDF project's configured identity provider. Access token must be an OpenID Connect token, and the project must be configured to accept OpenID Connect tokens. Use a header key of 'Authorization' with a value of 'Bearer $accesstoken'. The token can be obtained through any flow supported by the identity provider.

Body

application/json

List of the IDs of the time series to retrieve.

​
items
(QueryWithInternalId · object | QueryWithExternalId · object | QueryWithInstanceId · object)[]
required

List of ID objects.

Required array length: 1 - 1000 elements
​
ignoreUnknownIds
boolean
default:false

Ignore IDs and external IDs that are not found

Response

Response with a list of time series matching the IDs.

List of responses. The order matches the requests order.

​
items
object[]
required
Last modified on June 2, 2026