A **mapping** uses field and value mapping(s) to perform an in-flight transformation from source CDF entities to SAP S/4HANA entities. Mappings are written in the Cognite transformation language. For more details see the [documentation](https://docs.cognite.com/cdf/integration/guides/extraction/hosted_extractors/hosted_extractors_custom_mappings).
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openapi: 3.2.0
info:
title: Cognite Schema Mappings API
description: '# Introduction
This is the reference documentation for the Cognite API with
an overview of all the available methods.'
version: v1
contact:
name: Cognite Support
url: https://support.cognite.com
email: support@cognite.com
servers:
- url: https://{cluster}.cognitedata.com/api/v1/projects/{project}
description: The URL for the CDF cluster to connect to
variables:
cluster:
enum:
- api
- az-tyo-gp-001
- az-eastus-1
- az-power-no-northeurope
- westeurope-1
- asia-northeast1-1
- gc-dsm-gp-001
default: api
description: The CDF cluster to connect to
project:
default: publicdata
description: The CDF project name.
security:
- oidc-token:
- https://{cluster}.cognitedata.com/.default
- oauth2-client-credentials:
- https://{cluster}.cognitedata.com/.default
- oauth2-open-industrial-data:
- https://api.cognitedata.com/.default
- oauth2-auth-code:
- https://{cluster}.cognitedata.com/.default
tags:
- name: Schema Mappings
description: A **mapping** uses field and value mapping(s) to perform an in-flight transformation from source CDF entities to SAP S/4HANA entities. Mappings are written in the Cognite transformation language. For more details see the documentation.
paths:
/writeback/sap/mappings:
get:
tags:
- Schema Mappings
operationId: list_schema_mappings
x-capability:
- sapWritebackAcl:READ
description: '> **Required capabilities:** `sapWritebackAcl:READ`
List all mappings in a given CDF project. If more instances exist than what the limit specifies, a pagination cursor is returned in the response body.'
parameters:
- $ref: '#/components/parameters/Writeback100Limit'
- $ref: '#/components/parameters/Cursor'
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/ItemsWithCursor_SchemaMapping_'
description: List of mappings and an optional cursor.
'400':
$ref: '#/components/responses/400ErrorResponse'
'422':
$ref: '#/components/responses/WritebackValidationError'
summary: List Mappings
post:
tags:
- Schema Mappings
operationId: create_schema_mappings
x-capability:
- sapWritebackAcl:WRITE
description: '> **Required capabilities:** `sapWritebackAcl:WRITE`
Create a maximum of 100 mappings.'
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/Items_CreateSchemaMapping_'
required: true
description: Mappings to create.
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Items_SchemaMapping_'
description: List of created mappings
'400':
$ref: '#/components/responses/400ErrorResponse'
'422':
$ref: '#/components/responses/WritebackValidationError'
summary: Create Mappings
/writeback/sap/mappings/byids:
post:
operationId: retrieve_schema_mappings
x-capability:
- sapWritebackAcl:READ
tags:
- Schema Mappings
description: '> **Required capabilities:** `sapWritebackAcl:READ`
Retrieve a list of up to 100 mappings by their external ID, optionally ignoring unknown IDs.'
parameters:
- in: header
name: cdf-version
required: false
schema:
title: Cdf-Version
type: string
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/WritebackItemsWithIgnoreUnknownIds_ExternalId_'
required: true
description: List of external IDs of mappings to retrieve.
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Items_Mapping_'
description: List of retrieved mappings.
'400':
$ref: '#/components/responses/400ErrorResponse'
'422':
$ref: '#/components/responses/WritebackValidationError'
summary: Retrieve Mappings
/writeback/sap/mappings/delete:
post:
operationId: delete_schema_mappings
x-capability:
- sapWritebackAcl:WRITE
tags:
- Schema Mappings
description: '> **Required capabilities:** `sapWritebackAcl:WRITE`
Delete a list of mappings by their external ID.'
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/WritebackItemsWithIgnoreUnknownIds_ExternalId_'
required: true
description: List of external IDs of mappings to delete.
responses:
'200':
$ref: '#/components/responses/EmptyResponse'
description: Empty response
'400':
$ref: '#/components/responses/400ErrorResponse'
'422':
$ref: '#/components/responses/WritebackValidationError'
summary: Delete Mappings
components:
schemas:
WritebackExternalIdWrapper:
additionalProperties: false
properties:
externalId:
$ref: '#/components/schemas/CogniteExternalId'
required:
- externalId
title: WritebackExternalIdWrapper
type: object
SchemaMapping:
additionalProperties: false
properties:
externalId:
$ref: '#/components/schemas/CogniteExternalId'
expression:
type: string
description: Custom transform expression written in the Cognite mapping language.
maxLength: 2000
example: "\n{\n \"SAPFieldA\": substring(input.CDFFieldA,0,40), \n \"SAPFieldB\": input.CDFFieldB, \n}\n"
createdTime:
$ref: '#/components/schemas/EpochTimestamp'
lastUpdatedTime:
$ref: '#/components/schemas/EpochTimestamp'
required:
- externalId
- expression
- lastUpdatedTime
- createdTime
title: SchemaMapping
type: object
CustomMapping:
type: object
properties:
expression:
type: string
description: Custom transform expression written in the Cognite transformation language.
maxLength: 2000
required:
- expression
EpochTimestamp:
description: The number of milliseconds since 00:00:00 Thursday, 1 January 1970, Coordinated Universal Time (UTC), minus leap seconds.
type: integer
minimum: 0
format: int64
example: 1730204346000
CsvConfig:
additionalProperties: false
type: object
title: CSV
description: 'Transform the input from a CSV (Comma Separated Values) file to a list of JSON objects. The input to the mapping will be a list on the form `[{\"header1\": \"value1\", ...}, ...]`.
'
properties:
type:
type: string
enum:
- csv
description: Input type
title: Type
delimiter:
type: string
description: A single ASCII character used as the separator in the CSV file. Defaults to `,`
maxLength: 1
minLength: 1
title: Delimiter
customKeys:
type: array
minItems: 1
maxItems: 20
description: List of headers. If this is not set, the headers will be retrieved from the CSV file.
items:
type: string
description: CSV file header value.
title: CSV_Header
required:
- type
CogniteExternalId:
description: The external ID provided by the client. Must be unique for the resource type.
type: string
maxLength: 255
example: my.known.id
InputConfig:
type: object
description: Optionally set input mapping input type. This defaults to json if left out. Any input type is converted to JSON before being passed to the mapping expression.
discriminator:
mapping:
protobuf: '#/components/schemas/ProtobufConfig'
csv: '#/components/schemas/CsvConfig'
xml: '#/components/schemas/XmlConfig'
json: '#/components/schemas/JsonConfig'
propertyName: type
oneOf:
- $ref: '#/components/schemas/ProtobufConfig'
- $ref: '#/components/schemas/CsvConfig'
- $ref: '#/components/schemas/XmlConfig'
- $ref: '#/components/schemas/JsonConfig'
JsonConfig:
additionalProperties: false
type: object
description: Treat the input as UTF-8 encoded JSON.
title: JSON
properties:
type:
type: string
enum:
- json
description: Input type
title: Type
required:
- type
WritebackItemsWithIgnoreUnknownIds_ExternalId_:
additionalProperties: false
properties:
items:
items:
$ref: '#/components/schemas/WritebackExternalIdWrapper'
title: Items
type: array
maxItems: 100
minItems: 1
ignoreUnknownIds:
type: boolean
title: IgnoreUnknownIds
description: Ignore IDs and external IDs that are not found
required:
- items
title: ItemsWithIgnoreUnknownIds_ExternalId
type: object
Items_Mapping_:
additionalProperties: false
properties:
items:
items:
$ref: '#/components/schemas/Mapping'
title: Items
type: array
maxItems: 100
minItems: 0
required:
- items
title: MappingList
type: object
XmlConfig:
additionalProperties: false
type: object
title: XML
description: 'Transform the input from an XML file to a JSON object.
'
properties:
type:
type: string
enum:
- xml
description: Input type
title: Type
required:
- type
CreateSchemaMapping:
additionalProperties: false
properties:
externalId:
$ref: '#/components/schemas/CogniteExternalId'
expression:
type: string
description: Custom transform expression written in the Cognite mapping language.
maxLength: 2000
example: "\n{\n \"SAPFieldA\": substring(input.CDFFieldA,0,40), \n \"SAPFieldB\": input.CDFFieldB, \n}\n"
required:
- externalId
- expression
title: Create SchemaMapping
type: object
WritebackValidationErrorContent:
type: object
required:
- code
- message
description: Cognite API error.
properties:
code:
type: integer
description: HTTP status code.
format: int32
example: 422
message:
type: string
description: Error message.
example: 'Extra inputs are not permitted: type'
ItemsWithCursor_SchemaMapping_:
additionalProperties: false
properties:
items:
items:
$ref: '#/components/schemas/SchemaMapping'
title: Items
type: array
maxItems: 100
minItems: 0
nextCursor:
type: string
title: Next cursor
description: Cursor for pagination
required:
- items
title: MappingList
type: object
ProtobufConfig:
additionalProperties: false
description: List of protobuf files used to define input to the mapping. This will be compiled to a collection of definitions which will be used to convert the input to JSON.
title: ProtoBuf
properties:
type:
type: string
enum:
- protobuf
description: Input type
title: Type
messageName:
type: string
description: Name of root message in the protobuf files.
maxLength: 128
title: Message Name
files:
type: array
maxItems: 20
minItems: 1
items:
$ref: '#/components/schemas/ProtoFile'
required:
- messageName
- files
- type
ProtoFile:
additionalProperties: false
description: Description of a protobuf file used for loading input to the mapping.
properties:
fileName:
type: string
title: File Name
format: '[a-zA-Z0-9_-]+\.proto'
maxLength: 128
description: Name of protobuf file. Must contain only letters, numbers, underscores, and hyphens, and must end with '.proto'.
required:
- fileName
Items_CreateSchemaMapping_:
additionalProperties: false
properties:
items:
items:
$ref: '#/components/schemas/CreateSchemaMapping'
title: Items
type: array
minLength: 1
maxLength: 100
required:
- items
title: CreateSchemaMapping list
type: object
Items_SchemaMapping_:
additionalProperties: false
properties:
items:
items:
$ref: '#/components/schemas/SchemaMapping'
title: Items
type: array
maxItems: 100
minItems: 0
required:
- items
title: InstanceList
type: object
Error:
type: object
required:
- code
- message
description: Cognite API error.
properties:
code:
type: integer
description: HTTP status code.
format: int32
example: 401
message:
type: string
description: Error message.
example: Could not authenticate.
missing:
type: array
description: List of lookup objects that do not match any results.
items:
type: object
additionalProperties: true
duplicated:
type: array
description: List of objects that are not unique.
items:
type: object
additionalProperties: true
Mapping:
additionalProperties: false
properties:
externalId:
$ref: '#/components/schemas/CogniteExternalId'
mapping:
$ref: '#/components/schemas/CustomMapping'
input:
$ref: '#/components/schemas/InputConfig'
published:
title: Published
type: boolean
description: Whether this mapping is published and should be available to be used in jobs.
createdTime:
$ref: '#/components/schemas/EpochTimestamp'
lastUpdatedTime:
$ref: '#/components/schemas/EpochTimestamp'
required:
- externalId
- mapping
- published
- lastUpdatedTime
- createdTime
- input
title: Mapping
type: object
responses:
EmptyResponse:
description: Empty response.
content:
application/json:
schema:
type: object
WritebackValidationError:
description: Validation Error
content:
application/json:
schema:
type: object
required:
- error
properties:
error:
$ref: '#/components/schemas/WritebackValidationErrorContent'
400ErrorResponse:
description: The response for a bad request.
content:
application/json:
schema:
type: object
required:
- error
properties:
error:
$ref: '#/components/schemas/Error'
example:
error:
code: 400
message: '`null` values aren''t allowed.'
parameters:
Cursor:
name: cursor
description: 'Cursor for paging through results. In general, if a response contains a `nextCursor`
property, it means that there may be more results, and you should pass that value as the
`cursor` parameter in the next request.
Note that the cursor may or may not be encrypted, but either way, it is not intended to be
decoded. Its internal structure is not a part of the public API, and may change without
notice. You should treat it as an opaque string and not attempt to craft your own cursors.
'
in: query
schema:
type: string
example: 4zj0Vy2fo0NtNMb229mI9r1V3YG5NBL752kQz1cKtwo
Writeback100Limit:
name: limit
description: Limits the number of results to be returned. The maximum results returned by the server is 100 even if you specify a higher limit.
in: query
schema:
type: integer
default: 100
minimum: 1
maximum: 100
securitySchemes:
oidc-token:
type: http
scheme: bearer
bearerFormat: OpenID Connect or OAuth2 token
description: 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.
oauth2-client-credentials:
type: oauth2
description: 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.
flows:
clientCredentials:
tokenUrl: https://your-idps.token.url/
scopes:
default: https://{cluster}.cognitedata.com/.default
oauth2-auth-code:
type: oauth2
description: 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.
flows:
authorizationCode:
authorizationUrl: https://your-idps.authorization.url/
tokenUrl: https://your-idps.token.url/
scopes:
default: https://{cluster}.cognitedata.com/.default
oauth2-open-industrial-data:
type: oauth2
description: Auth flow for Open Industrial Data. Get your client secret from https://hub.cognite.com/open-industrial-data-211.
flows:
clientCredentials:
tokenUrl: https://login.microsoftonline.com/48d5043c-cf70-4c49-881c-c638f5796997/oauth2/v2.0/token
scopes:
default: https://api.cognitedata.com/.default
org-oidc-token:
type: openIdConnect
openIdConnectUrl: https://auth.cognite.com/.well-known/openid-configuration
description: '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 obtained by performing an OIDC login flow toward `auth.cognite.com`.
This is a single URL for all CDF organizations.'
x-tagGroups:
- name: Changelog
tags:
- Changelog
- name: Organizations and projects
tags:
- Organizations
- Projects
- name: Identity and access management
tags:
- Principals
- Groups
- Security categories
- Sessions
- Token
- User profiles
- Project Deletion Reporting
- name: Data modeling
tags:
- Data Modeling
- Data models
- Spaces
- Views
- Containers
- Nodes
- Instances
- Statistics
- Streams
- Records
- name: Asset-centric data model
tags:
- Assets
- Time series
- Synthetic Time Series
- Data point subscriptions
- Events
- Files
- Sequences
- Geospatial
- Seismic
- name: 3D
tags:
- 3D Models
- 3D Model Revisions
- 3D Files
- 3D Asset Mapping
- 3D Contextualization
- 3D Jobs
- 3D Migration
- 3D Scenes
- name: Contextualization
tags:
- Entity matching
- Entity matching pipelines
- Engineering diagrams
- Vision
- Advanced joins
- name: Cognite AI
tags:
- Agents
- Skills
- Chat Completions
- Document AI
- Models
- name: Documents
tags:
- Documents
- Document preview
- name: Data ingestion
tags:
- Raw
- Extraction Pipelines
- Extraction Pipelines Runs
- Extraction Pipelines Config
- Extractors
- name: Data organization
tags:
- Data sets
- Data domains
- Data products
- Rule sets
- Labels
- Relationships
- Annotations
- name: Transformations
tags:
- Transformations
- Transformation Jobs
- Transformation Schedules
- Transformation Notifications
- Query
- Schema
- name: Functions
tags:
- Functions
- Function calls
- Function schedules
- name: Hosted Extractors
tags:
- Sources
- Jobs
- Destinations
- Mappings
- name: PostgreSQL Gateway
tags:
- Postgres Gateway Users
- Postgres Gateway Tables
- name: SAP Writeback
tags:
- SAP Instances
- SAP Endpoints
- Schema Mappings
- Writeback Requests
- name: Data workflows
tags:
- Workflows
- Workflow versions
- Workflow executions
- Workflow triggers
- Tasks
- Workers
- name: Simulators
tags:
- Simulators
- Simulator Integrations
- Simulator Models
- Simulator Routines
- Simulation Runs
- Simulator Logs
- name: Units
tags:
- Units
- Unit Systems
- name: ''
tags:
- ''