Create Datamart

Create datamarts to organize your data sources into logical business units. Datamarts provide structured access to your datasource tables and columns with optional schema support.

Endpoint Migration Notice: We’re transitioning to kebab-case endpoints. The new endpoint is /api/v2/data-app/datamarts. The old endpoint /api/v2/dataApp/datamarts will be deprecated soon. Please update your integrations to use the new endpoint format.

Datamarts help organize data sources by defining which tables and columns are accessible. Tenancy settings are optional and can be omitted if multi-tenant data isolation is handled at the application level. Ensure your datasource exists before creating a datamart.

Endpoint Formats

New Endpoint (Recommended)
Legacy Endpoint (Deprecated Soon)

POST https://api.usedatabrain.com/api/v2/data-app/datamarts

Use this endpoint for all new integrations. This is the recommended endpoint format.

POST https://api.usedatabrain.com/api/v2/data-app/datamarts

This endpoint still works but will be deprecated. Please migrate to the new endpoint format.

Authentication

This endpoint requires a service token in the Authorization header. Service tokens differ from data app API keys and provide organization-level permissions. To access your service token:

Go to your Databrain dashboard and open Settings.
Navigate to Settings.
Find the Service Tokens section.
Click the “Generate Token” button to generate a new service token if you don’t have one already.

Use this token as the Bearer value in your Authorization header.

Headers

Authorization

string

required

Bearer token for API authentication. Use your API key from the data app.

Authorization: Bearer dbn_live_abc123...

Content-Type

string

required

Must be set to application/json for all requests.

Content-Type: application/json

Request Body

name

string

required

Name of the datamart to create. Must be unique within your organization.

Show Naming guidelines

Use descriptive names (e.g., “sales-analytics”, “customer-data”)
Alphanumeric characters and hyphens recommended
Must be unique within your organization
Cannot be changed after creation

datasourceName

string

required

The datasource to which this datamart belongs. Must match an existing datasource in your organization.

Show Finding datasource names

Check your datasources list in the DataBrain dashboard
Use the exact name as it appears in your datasource configuration
Names are case-sensitive

tableList

array

required

Array of tables with columns to include in the datamart. Must be non-empty.

tableList.name

string

required

Table name from your datasource.

tableList.schemaName

string

Optional schema name (required only for schema-based datasources like PostgreSQL, SQL Server).

tableList.clientColumn

string

Optional column name in this table that identifies the client/tenant. This column is used for multi-tenant data isolation at the table level. Must exist in the table schema.

Show Client column usage

Used for table-level tenancy when tenancyLevel is TABLE
The column should contain client/tenant identifiers

tableList.isHide

boolean

Optional flag to hide the table from the datamart interface.

tableList.label

string

Optional label for the table to provide a human-readable display name. When provided, this label can be used in the UI instead of the technical table name for better readability.

Show Label usage

Provides a user-friendly display name for the table
Useful when table names are cryptic or technical
Does not affect the actual table reference in queries

tableList.columns

array

required

List of column objects for this table. Must be non-empty.

tableList.columns.name

string

required

Column name from the table.

tableList.columns.alias

string

Optional alias for the column to display a different name.

tableList.columns.label

string

Optional label for the column for better readability.

tableList.columns.isHide

boolean

Optional flag to hide the column from the datamart interface.

tableList.columns.isCustomColumn

boolean

Optional flag to mark this as a custom/calculated column. When true, the sql field is required to define the column’s SQL expression.

Show Custom column usage

Custom columns allow you to define calculated fields using SQL expressions
The name field should reference an existing column from the datasource schema
Use the alias field to give the calculated column a custom display name
The SQL expression can reference other columns from the same table
Useful for derived metrics, concatenations, or transformations

tableList.columns.sql

string

SQL expression that defines the calculated value for a custom column. Required when isCustomColumn is true. The expression can reference other columns from the same table.

Show SQL expression examples

Simple calculation: quantity * unit_price
Date extraction: EXTRACT(YEAR FROM order_date)
String concatenation: CONCAT(first_name, ' ', last_name)
Case statement: CASE WHEN status = 'active' THEN 1 ELSE 0 END

tableList.columns.isAggregate

boolean

Optional flag to indicate if this column should be treated as an aggregate column. When true, the column is marked as AGGREGATE drop type for metric calculations.

Show Aggregate column usage

Aggregate columns are used for pre-aggregated metrics
Affects how the column behaves in metric calculations and drag-drop operations
Common for SUM, COUNT, AVG type pre-calculated values

tenancySettings

object

Multi-tenant configuration for the datamart. Defines how data is isolated between different tenants/clients. Optional - if not provided, the datamart will be created without explicit tenancy settings.

Show Tenancy configuration details

TABLE level: Uses a dedicated table to map client identifiers
DATABASE level: Each client has a separate database
Optional - can be omitted if tenancy is handled at the application level

tenancySettings.tenancyLevel

string

The level at which tenant isolation occurs. Must be one of: TABLE, DATABASE, or MULTI_DATABASE.

TABLE: Client mapping is stored in a specific table (most common)
DATABASE: Each client has a separate database instance
MULTI_DATABASE: Multiple databases are used for tenant isolation

Required when tenancySettings is provided. If tenancySettings is omitted, this field is not needed.

tenancySettings.clientColumnType

string

Data type of the client identifier column. Must be either NUMBER or STRING.Required when tenancyLevel is TABLE.

tenancySettings.schemaName

string

Schema name where the client mapping table is located.Required when tenancyLevel is TABLE.

tenancySettings.tableName

string

Name of the table that contains client mapping information.Required when tenancyLevel is TABLE.

tenancySettings.tableClientNameColumn

string

Column name in the mapping table that stores the client identifier.Required when tenancyLevel is TABLE.

tenancySettings.tablePrimaryKeyColumn

string

Primary key column of the client mapping table.Required when tenancyLevel is TABLE.

relationships

array

Optional array of table relationships to define how tables in the datamart are connected. Relationships enable joins between tables for more complex queries.

Show Relationship configuration

Define how tables relate to each other (e.g., orders.customer_id → customers.id)
Supports different join types and cardinalities
Useful for creating metrics that span multiple tables
Optional - datamarts can work without relationships for single-table queries

relationships.parentTableName

string

required

Name of the parent table in the relationship.

relationships.parentColumnName

string

required

Column name in the parent table that participates in the relationship.

relationships.childTableName

string

required

Name of the child table in the relationship.

relationships.childColumnName

string

required

Column name in the child table that participates in the relationship.

relationships.relationshipName

string

required

A descriptive name for the relationship (e.g., “orders_to_customers”).

relationships.cardinality

string

The cardinality of the relationship. Must be one of: ManyToMany, ManyToOne, OneToMany, OneToOne.Optional: Can be omitted or set to null if not specified.

relationships.join

string

The type of SQL join to use. Must be one of: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN.Optional: Can be omitted or set to null if not specified.

Response

string

The name of the created datamart (same as the input name).

error

null | object

Error object if the request failed, otherwise null for successful requests.

Examples

Errors

HTTP Status	Error Code	Description
`200`	-	Success - Datamart created successfully
`400`	`INVALID_REQUEST_BODY`	Invalid request parameters. Common causes: missing required fields, empty table list, invalid table/column structure, invalid schema/table names, invalid column names, or validation errors from Joi schema.
`400`	`AUTH_ERROR`	Invalid or expired service token
`400`	`DATASOURCE_NAME_ERROR`	The specified datasource doesn’t exist or you don’t have access to it
`500`	`INTERNAL_SERVER_ERROR`	Server error occurred. Contact support if error persists

Quick Start Guide

Verify your datasource

Ensure your datasource exists and is properly configured. You’ll need the exact datasource name as it appears in your DataBrain workspace.

Prepare your table structure

Identify the tables and columns you want to include in your datamart:

{
  "name": "sales-analytics",
  "datasourceName": "postgres-main",
    "tableList": [
      {
        "schemaName": "public",
        "name": "orders",
        "label": "Customer Orders",
        "clientColumn": "tenant_id",
        "isHide": false,
        "columns": [
          {"name": "order_id", "alias": "id", "label": "Order ID", "isHide": false},
          {"name": "customer_id", "label": "Customer", "isHide": false},
          {"name": "order_date", "alias": "date", "label": "Order Date", "isHide": false}
        ]
      }
    ],
  "tenancySettings": {
    "tenancyLevel": "TABLE",
    "clientColumnType": "STRING",
    "schemaName": "public",
    "tableName": "client_mapping",
    "tableClientNameColumn": "client_id",
    "tablePrimaryKeyColumn": "id"
  },
  "relationships": [
    {
      "parentTableName": "orders",
      "parentColumnName": "customer_id",
      "childTableName": "customers",
      "childColumnName": "id",
      "relationshipName": "orders_to_customers",
      "cardinality": "ManyToOne",
      "join": "LEFT JOIN"
    }
  ]
}

Create your datamart

Make the API call to create your datamart:

curl --request POST \
  --url https://api.usedatabrain.com/api/v2/data-app/datamarts \
  --header 'Authorization: Bearer dbn_live_abc123...' \
  --header 'Content-Type: application/json' \
  --data '{
    "name": "sales-analytics",
    "datasourceName": "postgres-main",
    "tableList": [
      {
        "schemaName": "public",
        "name": "orders",
        "clientColumn": "tenant_id",
        "isHide": false,
        "columns": [
          {"name": "order_id", "alias": "id", "label": "Order ID", "isHide": false},
          {"name": "customer_id", "label": "Customer", "isHide": false}
        ]
      }
    ],
    "tenancySettings": {
      "tenancyLevel": "TABLE",
      "clientColumnType": "STRING",
      "schemaName": "public",
      "tableName": "client_mapping",
      "tableClientNameColumn": "client_id",
      "tablePrimaryKeyColumn": "id"
    },
    "relationships": [
      {
        "parentTableName": "orders",
        "parentColumnName": "customer_id",
        "childTableName": "customers",
        "childColumnName": "id",
        "relationshipName": "orders_to_customers",
        "cardinality": "ManyToOne",
        "join": "LEFT JOIN"
      }
    ]
  }'

Use your datamart

Reference your new datamart in embed configurations:

const embedConfig = await createEmbedConfiguration({
  dashboardId: 'your-dashboard-id',
  embedType: 'dashboard',
  workspaceName: 'your-workspace',
  accessSettings: {
    datamartName: 'sales-analytics', // Your new datamart
    // ... other settings
  }
});

Next Steps

List Datamarts

View all datamarts in your organization

Delete Datamart

Remove datamarts you no longer need

Embed a Pre-built Dashboard/Metric

Use your datamart in embed configurations

Getting Started

Learn how to get started with DataBrain embedding

Authentication

Datasource APIs

Datamart APIs

Workspace APIs

Embeds

Embedding APIs (Legacy)

Data App APIs

Metric APIs

Endpoint Formats

Authentication

Headers

Request Body

Response

Examples

Errors

Quick Start Guide

Next Steps

List Datamarts

Delete Datamart

Embed a Pre-built Dashboard/Metric

Getting Started

Authentication

Datasource APIs

Datamart APIs

Workspace APIs

Embeds

Embedding APIs (Legacy)

Data App APIs

Metric APIs

​Endpoint Formats

​Authentication

​Headers

​Request Body

​Response

​Examples

​Errors

​Quick Start Guide

​Next Steps

List Datamarts

Delete Datamart

Embed a Pre-built Dashboard/Metric

Getting Started

Endpoint Formats

Authentication

Headers

Request Body

Response

Examples

Errors

Quick Start Guide

Next Steps