Cognite Transformations API
Transformations enable users to use Spark SQL queries to transformdata from the CDF staging area, RAW, into the CDF data model.### Concurrency limitsThe number of concurrent (parallel) jobs are governed by limits. If a request exceeds one of the limits,the job fails to run. This limitation also applies to scheduled transformations.The limits for the transformation service are described in the table below. Note that under high load,some deviation from the limits might occur for short periods as the service scales up.| Limit | Per project ||-----------------------|-----------------------|| Concurrency | 10 parallel jobs |
Cognite Transformations API is one of 90 APIs that Cognite publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Transformation. The published artifact set on APIs.io includes an OpenAPI specification.
This API exposes 8 operations across 7 paths, and defines 54 schemas. It is described by OpenAPI 3.2.0, at version v1.
Requests are made against a single base URL, https://{cluster}.cognitedata.com/api/v1/projects/{project}.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 5
Cognite Transformations API declares
5 security schemes
for authenticating requests.
It accepts HTTP bearer tokens (OpenID Connect or OAuth2 token) (oidc-token).
It supports OAuth 2.0 (oauth2-client-credentials) using the clientCredentials flow, exposing 1 scope.
It supports OAuth 2.0 (oauth2-auth-code) using the authorizationCode flow, exposing 1 scope.
It supports OAuth 2.0 (oauth2-open-industrial-data) using the clientCredentials flow, exposing 1 scope.
It supports OpenID Connect (org-oidc-token) discovered at https://auth.cognite.com/.well-known/openid-configuration.
By default, every request must be authenticated.
oidc-token— 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 acce…oauth2-client-credentials— 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 acce…oauth2-auth-code— 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 acce…oauth2-open-industrial-data— Auth flow for Open Industrial Data. Get your client secret from https://hub.cognite.com/open-industrial-data-211.org-oidc-token— Access token issued by the Cognite authorization server, and valid for the target organization. The token must be an OpenID Connect token, and it can be obtain…
Paths & Operations 8
Across 7 paths, the API surfaces 8 operations — 1 GET, 7 POST. Each is listed below with its method, path, parameters, and response codes.
Transformations enable users to use Spark SQL queries to transform data from the CDF staging area, RAW, into the CDF data model. Concurrency limits The number of concurrent (paral…
Schemas 54
The contract defines 54 schemas that model the data the API accepts and returns. The most detailed are TransformationRead (22 properties), JobRead (16 properties), TransformationCreate (13 properties), TransformationUpdate (13 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Cognite 12
Other APIs Cognite publishes across the network.
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