Connection API

This document outlines the API endpoints and structures for creating new connections, which can be either project-scoped or global-scoped.

Create Connection

You can create a new connection using a POST request.

Endpoints

Project-scoped: POST: https://{telmai_endpoint}/api/backend/{tenant}/configuration/projects/{projectId}/connections
Global-scoped: POST: https://{telmai_endpoint}/api/backend/{tenant}/configuration/connections

Request Body

The request body defines the properties of the new connection.

{
  "name": "MyRedshift",
  "type": "REDSHIFT",
  "credential": {
    "type": "SIMPLE",
    "payload": {
      "username": "test",
      "password": "test"
    }
  },
  "payload": {
    "endpoint_prefix": "tlm-redshift02"
  }
}

Fields:

name (string): A user-defined name for the connection.
type (string): The type of the connection (e.g., REDSHIFT, GCS, AZURE, BIGQUERY, DELTALAKE, GENERIC_JDBC, HIVE_ICEBERG, SNOWFLAKE). This determines the structure of the payload field.
credential (object): Contains the authentication details for the connection.
- type (string): The type of credential (e.g., SIMPLE, GCP, AWS, TOKEN, AZURE_SAS, GENERIC_MAP).
- payload (object): The specific credential details, which vary based on the credential.type. Refer to the Credentials documentation for detailed payload formats.
payload (object): The connection-specific configuration. The format of this object depends on the type of the connection. Refer to the "API Payload Formats by Type" table for examples.

Response

The response confirms the creation of the connection and provides its details, including a unique id.

{
  "id": 3111,
  "project_id": 0,
  "name": "MyRedshift",
  "scope": "PROJECT",     // Can be "GLOBAL" for global-scoped connections
  "created_by": "[email protected]",
  "created_at": "2025-05-23T11:03:01.000Z", // ISO format in UTC
  "type": "REDSHIFT",
  "payload": {
    "endpoint_prefix": "tlm-redshift02"
  },
  "db_type": "HANA101"
}

Fields:

id (integer): The unique identifier of the newly created connection.
project_id (integer): The ID of the project if it's a project-scoped connection; otherwise, it might be 0 or null for global-scoped.
name (string): The name of the connection.
scope (string): Indicates whether the connection is PROJECT-scoped or GLOBAL-scoped.
created_by (string): The email of the user who created the connection.
created_at (string): The timestamp when the connection was created in ISO format (UTC).
type (string): The type of the connection.
payload (object): The connection-specific configuration as provided in the request.
db_type (string): The database type, derived from the connection.

Correspondence between Connection and Credential Types

The credential.type you provide in the request body should correspond to the type of the connection you are creating:

GCS -> GCP
S3 -> AWS
BIGQUERY -> GCP
AZURE -> AZURE_SAS
SNOWFLAKE -> SIMPLE
DELTALAKE -> TOKEN
REDSHIFT -> SIMPLE
GENERIC_JDBC -> GENERIC_MAP
HIVE_ICEBERG -> depends on location_type within its payload (e.g., GCP, AWS, AZURE_SAS).

Payload

Payload object describes the connection detail and is dependent on connection type

Type

Credential Type

Payload Format

REDSHIFT

SIMPLE

{"endpoint_prefix": "tlm-redshift02"}

GCS

GCP

{"bucket": "<bucket_name>"}

S3

AWS

{"bucket": "<bucket_name>"}

AZURE

AZURE_SAS

{"storage_account": "test_acc", "bucket": "<bucket_name>"}

BIGQUERY

GCP

{"project": "test_project"}

DELTALAKE

TOKEN

{"host": "test.db23.databricks.com", "port": "443", "httppath": "some/path"}

GENERIC_JDBC

GENERIC_MAP

{"db_type": "HANA10", "db_or_schema": "test_db", "connection_properties": {"prop1": "value1", "prop2": "value2"}}

connection_properties can contain additional custom parameters.

HIVE_ICEBERG

<location_dependent>

{"thrift_uri": "thrift://<url>:<port|9083>", "location_type": "GCS", "region": "us-east-1", "bucket": "<bucket_name>"}

SNOWFLAKE

SIMPLE

{"account": "test_acc", "warehouse": "<warehouse_name>", "role": "WH_ADMIN"}

Credentials

SIMPLE

{"username": "your_username", "password": "your_password"}

Basic username and password authentication.

AWS

{"access_key": "your_access_key_id", "secret_key": "your_secret_access_key"}

AWS credentials.

TOKEN

{"token": "your_api_token"}

API token for authentication.

AZURE_SAS

{"sas_key": "your_azure_sas_key"}

Azure Shared Access Signature key.

GENERIC_MAP

{"custom_param1": "value1", "custom_param2": "value2"}

A generic map for custom key-value pair credentials.

GCP

{"projectId": "telmai-dev", "privateKeyId": "your-private-key-id", "privateKey": "-----BEGIN PRIVATE KEY-----\n...\n-----END PRIVATE KEY-----\n", "clientEmail": "[email protected]", "clientId": "your-client-id"}

GCP service account key details.

Update Connection

You can update an existing connection using a PUT request.

Endpoints

Project-scoped: PUT: https://{telmai_endpoint}/api/backend/{tenant}/configuration/projects/{projectId}/connections/{connectionId}
Connection by Id: PUT: https://{telmai_endpoint}/api/backend/{tenant}/configuration/connections/{connectionId}

Request Body

The request body defines the properties to update for the connection. All fields are optional, and only those provided will be updated. This request body uses the same parameters defined in create request

List Connections

You can retrieve the list of connections using a GET request.

Endpoints

Project-scoped: GET: https://{telmai_endpoint}/api/backend/{tenant}/configuration/projects/{projectId}/connections
All Connections: GET: https://{telmai_endpoint}/api/backend/{tenant}/configuration/connections

Response

The response is an array of connection objects, each containing detailed information about a connection.

[
  {
    "id": 3111,
    "project_id": 0,
    "name": "MyRedshiftConnection",
    "scope": "GLOBAL",
    "created_by": "[email protected]",
    "created_at": "2025-05-23T11:03:01.000Z",
    "type": "REDSHIFT",
    "payload": {
      "endpoint_prefix": "tlm-redshift02",
      "database": "production_db",
      "port": 5439
    },
    "db_type": "HANA101"
  },
  {
    "id": 3112,
    "project_id": 123,
    "name": "MyProjectGCSConnection",
    "scope": "PROJECT",
    "created_by": "[email protected]",
    "created_at": "2025-05-24T10:00:00.000Z",
    "type": "GCS",
    "payload": {
      "bucket": "telmai_project_storage"
    },
    "db_type": null
  }
]

Fields for Each Connection Object:

id (integer): The unique identifier of the connection.
project_id (integer): The ID of the project the connection belongs to. For global connections, this will typically be 0.
name (string): The user-defined name of the connection.
scope (string): Indicates whether the connection is PROJECT-scoped or GLOBAL-scoped.
created_by (string): The email of the user who created the connection.
created_at (string): The timestamp when the connection was created, in ISO 8601 format (UTC).
type (string): The type of the connection (e.g., REDSHIFT, GCS, AZURE, BIGQUERY, DELTALAKE, GENERIC_JDBC, HIVE_ICEBERG, SNOWFLAKE).
payload (object): The connection-specific configuration. The structure of this object varies based on the type of the connection. Refer to the "Connection Payload Formats by Type" section in the main Connection API documentation for detailed examples.
db_type (string, optional): The specific database type associated with the connection, if applicable (e.g., "HANA101" for a GENERIC_JDBC connection or derived from other types). Can be null if not relevant.

Get Connection Details

You can retrieve the details of an existing connection using a GET request.

Endpoints

Project-scoped: GET: https://{telmai_endpoint}/api/backend/{tenant}/configuration/projects/{projectId}/connections/{connectionId}
General reference: GET: https://{telmai_endpoint}/api/backend/{tenant}/configuration/connections/{connectionId}

Request

This API endpoint uses a GET method and does not require a request body.

Response

The response provides the full details of the requested connection.

{
  "id": 3111,
  "project_id": 0,
  "name": "MyRedshift",
  "scope": "PROJECT",     // Can be "GLOBAL" in case of tenant-level endpoint
  "created_by": "[email protected]",
  "created_at": "2025-05-23T11:03:01.000Z", // ISO format in UTC
  "type": "REDSHIFT",
  "payload": {
    "endpoint_prefix": "tlm-redshift02"
  },
  "db_type": "HANA101"
}

Fields:

id (integer): The unique identifier of the connection.
project_id (integer): The ID of the project if it's a project-scoped connection; otherwise, it might be 0 or null for global-scoped.
name (string): The name of the connection.
scope (string): Indicates whether the connection is PROJECT-scoped or GLOBAL-scoped.
created_by (string): The email of the user who created the connection.
created_at (string): The timestamp when the connection was created in ISO format (UTC).
type (string): The type of the connection.
payload (object): The connection-specific configuration. The format of this object depends on the type of the connection. Refer to the "API Payload Formats by Type" table for examples.
db_type (string): The database type, derived from the connection.

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