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Snowflake API Reference Guide

The snowflake endpoint allows you to connect and manage Snowflake data sources in Immuta.

Additional fields may be included in some responses you receive; however, these attributes are for internal purposes and are therefore undocumented.

Snowflake workflow

Snowflake imported databases

Immuta does not support Snowflake tables from imported databases. Instead, create a view of the table and register that view as a data source.

  1. Create a data source.

  2. Get information about a data source.

  3. Manage data sources.

Create a data source

**Duplicate data sources**: In order to avoid two data sources referencing the same table, users can not create duplicate data sources. If you attempt to create a duplicate data source using the API, you will encounter a warning stating "duplicate tables are specified in the payload."

POST /snowflake/handler

Save the provided connection information as a data source.

Payload parameters

AttributeDescriptionRequired

private

boolean When false, the data source will be publicly available in the Immuta UI.

Yes

blobHandler

array[object] The parameters for this array include scheme ("https") and url (an empty string).

Yes

blobHandlerType

string Describes the type of underlying blob handler that will be used with this data source (e.g., MS SQL).

Yes

recordFormat

string The data format of blobs in the data source, such as json, xml, html, or jpeg.

Yes

type

string The type of data source: ingested (metadata will exist in Immuta) or queryable (metadata is dynamically queried).

Yes

name

string The name of the data source. It must be unique within the Immuta tenant.

Yes

sqlTableName

string A string that represents this data source's table in Immuta.

Yes

organization

string The organization that owns the data source.

Yes

category

string The category of the data source.

No

description

string The description of the data source.

No

hasExamples

boolean When true, the data source contains examples.

No

Response parameters

AttributeDescription

id

integer The handler ID.

dataSourceId

integer The ID of the data source.

warnings

string This message describes issues with the created data source, such as the data source being unhealthy.

connectionString

string The connection string used to connect the data source to Immuta.

Request example

This request creates a Snowflake data source.

curl \
    --request POST \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer dea464c07bd07300095caa8" \
    --data @example-payload.json \
    https://demo.immuta.com/snowflake/handler

Payload example

{
  "handler": {
    "metadata": {
      "ssl": true,
      "userFiles": [],
      "authenticationMethod": "userPassword",
      "username": "user",
      "password": "yourpassword",
      "port": 443,
      "hostname": "demo.us-east-1.snowflakecomputing.com",
      "warehouse": "YOUR_WH",
      "database": "ANALYTICS",
      "schema": "TEST",
      "table": "CUSTOMERS",
      "nativeViewName": "customers_immuta",
      "nativeSchemaName": "test_immuta",
      "nativeWorkspaceName": "immuta_analytics",
      "schemaProjectName": "Test",
      "bodataSchemaName": "test",
      "columns": [{
        "name": "CUSTOMER_ID",
        "dataType": "numeric(38,0)",
        "remoteType": "number(38,0)",
        "isPrimaryKey": false,
        "nullable": true
      }, {
        "name": "FIRST_NAME",
        "dataType": "text",
        "remoteType": "varchar(16777216)",
        "isPrimaryKey": false,
        "nullable": true
      }, {
        "name": "LAST_NAME",
        "dataType": "text",
        "remoteType": "varchar(16777216)",
        "isPrimaryKey": false,
        "nullable": true
      }, {
        "name": "FIRST_ORDER",
        "dataType": "date",
        "remoteType": "date",
        "isPrimaryKey": false,
        "nullable": true
      }, {
        "name": "MOST_RECENT_ORDER",
        "dataType": "date",
        "remoteType": "date",
        "isPrimaryKey": false,
        "nullable": true
      }, {
        "name": "NUMBER_OF_ORDERS",
        "dataType": "numeric(18,0)",
        "remoteType": "number(18,0)",
        "isPrimaryKey": false,
        "nullable": true
      }, {
        "name": "TOTAL_ORDER_AMOUNT",
        "dataType": "numeric",
        "remoteType": "number(38,6)",
        "isPrimaryKey": false,
        "nullable": true
      }],
      "eventTime": "FIRST_ORDER",
      "staleDataTolerance": 86400,
      "bodataTableName": "customers",
      "dataSourceName": "Customers"
    }
  },
  "dataSource": {
    "blobHandler": {
      "scheme": "https",
      "url": ""
    },
    "blobHandlerType": "Snowflake",
    "recordFormat": "",
    "type": "queryable",
    "schemaEvolutionId": null,
    "columnEvolutionEnabled": true,
    "name": "Customers",
    "sqlTableName": "customers"
  },
  "schemaEvolution": {
    "ownerProfileId": 2,
    "config": {
      "nameTemplate": {
        "nameFormat": "<Schema> <Tablename>",
        "tableFormat": "<tablename>",
        "sqlSchemaNameFormat": "<schema>",
        "schemaProjectNameFormat": "<Schema>"
      }
    },
    "schemas": []
  }
}

Response example

{
  "id": 30,
  "dataSourceId": 30,
  "warnings": []
}

Get information about a data source

GET /snowflake/handler/{handlerId}

Get the handler metadata associated with the provided handler ID.

Query parameters

AttributeDescriptionRequired

handlerId

integer The ID of the handler.

Yes

skipCache

boolean When true, will skip the handler cache when retrieving metadata.

No

Response parameters

AttributeDescription

body

array[object] Metadata about the data source, including the data source ID, schema, database, and connection string.

Request example

This request returns metadata for the handler with the ID 30.

curl \
    --request GET \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer dea464c07bd07300095caa8" \
    https://demo.immuta.com/snowflake/handler/30

Response example

{
  "dataSourceId": 30,
  "metadata": {
    "ssl": true,
    "port": 443,
    "query": null,
    "table": "CUSTOMERS",
    "schema": "TEST",
    "database": "ANALYTICS",
    "hostname": "demo.us-east-1.snowflakecomputing.com",
    "username": "user",
    "eventTime": "FIRST_ORDER",
    "userFiles": [],
    "warehouse": "YOUR_WH",
    "dataSourceName": "Customers",
    "bodataTableName": "customers",
    "highCardinality": "CUSTOMER_ID",
    "bodataSchemaName": "test",
    "columnsNormalized": true,
    "schemaProjectName": "Test",
    "staleDataTolerance": 86400,
    "authenticationMethod": "userPassword"
  },
  "type": "odbcHandler",
  "connectionString": "user@demo.us-east-1.snowflakecomputing.com:443/ANALYTICS",
  "id": 30,
  "createdAt": "2021-10-01T16:19:23.562Z",
  "updatedAt": "2021-10-01T16:19:28.556Z",
  "dbms": {
    "name": "snowflake"
  }
}

Manage data sources

MethodPathPurpose

PUT

/snowflake/handler/{handlerId}

Update the data source metadata associated with the provided handler ID. This endpoint does not perform partial updates, but will allow the dictionary to be omitted. In this case, it uses the current dictionary.

PUT

/snowflake/bulk

Update the data source metadata associated with the provided connection string.

PUT

/snowflake/handler/{handlerId}/triggerHighCardinalityJob

Recalculate the high cardinality column for the specified data source.

PUT

/snowflake/handler/{handlerId}/refreshNativeViewJob

Refresh the native view of a data source.

Update a specific data source

PUT /snowflake/handler/{handlerId}

Update the data source metadata associated with the provided handler ID. This endpoint does not perform partial updates, but will allow the dictionary to be omitted. In this case, it uses the current dictionary.

Query parameters

AttributeDescriptionRequired

handlerId

integer The ID of the handler.

Yes

skipCache

boolean When true, will skip the handler cache when retrieving metadata.

No

Payload parameters

AttributeDescriptionRequired

handler

metadata Includes metadata about the handler, such as ssl, port, database, hostname, username, and password.

Yes

connectionString

string The connection string used to connect to the data source.

Yes

Response parameters

AttributeDescription

id

integer The ID of the handler.

ca

string The certificate authority.

columns

array[object] This is a Data Dictionary object, which provides metadata about the columns in the data source, including the name and data type of the column.

Request example

This request updates the metadata for the data source with the handler ID 30.

curl \
    --request PUT \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer dea464c07bd07300095caa8" \
    --data @example-payload.json \
    https://demo.immuta.com/snowflake/handler/30

Payload example

The payload below updates the eventTime to MOST_RECENT_ORDER.

{
  "handler": {
    "policyHandler": null,
    "dataSourceId": 30,
    "metadata": {
      "ssl": true,
      "port": 443,
      "table": "CUSTOMERS",
      "schema": "TEST",
      "database": "ANALYTICS",
      "hostname": "demo.us-east-1.snowflakecomputing.com",
      "username": "user",
      "eventTime": "MOST_RECENT_ORDER",
      "userFiles": [],
      "warehouse": "YOUR_WH",
      "dataSourceName": "Customers",
      "bodataTableName": "customers",
      "highCardinality": "CUSTOMER_ID",
      "bodataSchemaName": "test",
      "columnsNormalized": true,
      "schemaProjectName": "Test",
      "staleDataTolerance": 86400,
      "authenticationMethod": "userPassword",
      "columns": [{
        "name": "CUSTOMER_ID",
        "dataType": "numeric(38,0)",
        "nullable": true,
        "remoteType": "number(38,0)",
        "isPrimaryKey": false,
        "remoteColumn": "CUSTOMER_ID"
      }, {
        "name": "FIRST_NAME",
        "dataType": "text",
        "nullable": true,
        "remoteType": "varchar(16777216)",
        "isPrimaryKey": false,
        "remoteColumn": "FIRST_NAME"
      }, {
        "name": "LAST_NAME",
        "dataType": "text",
        "nullable": true,
        "remoteType": "varchar(16777216)",
        "isPrimaryKey": false,
        "remoteColumn": "LAST_NAME"
      }, {
        "name": "FIRST_ORDER",
        "dataType": "date",
        "nullable": true,
        "remoteType": "date",
        "isPrimaryKey": false,
        "remoteColumn": "FIRST_ORDER"
      }, {
        "name": "MOST_RECENT_ORDER",
        "dataType": "date",
        "nullable": true,
        "remoteType": "date",
        "isPrimaryKey": false,
        "remoteColumn": "MOST_RECENT_ORDER"
      }, {
        "name": "NUMBER_OF_ORDERS",
        "dataType": "numeric(18,0)",
        "nullable": true,
        "remoteType": "number(18,0)",
        "isPrimaryKey": false,
        "remoteColumn": "NUMBER_OF_ORDERS"
      }, {
        "name": "TOTAL_ORDER_AMOUNT",
        "dataType": "numeric",
        "nullable": true,
        "remoteType": "number(38,6)",
        "isPrimaryKey": false,
        "remoteColumn": "TOTAL_ORDER_AMOUNT"
      }]
    },
    "type": "odbcHandler",
    "connectionString": "user@demo.us-east-1.snowflakecomputing.com:443/ANALYTICS",
    "id": 30,
    "createdAt": "2021-10-01T16:19:23.562Z",
    "updatedAt": "2021-10-01T17:19:35.853Z",
    "dbms": {
      "name": "snowflake"
    }
  }
}

Response example

{
  "id": 30,
  "ca": ["-----BEGIN CERTIFICATE-----\ncertificatedata\n-----END CERTIFICATE-----"],
  "metadata": {
    "columns": [{
      "name": "customer_id",
      "dataType": "numeric(38,0)",
      "remoteType": "number(38,0)",
      "isPrimaryKey": false,
      "nullable": true,
      "remoteColumn": "CUSTOMER_ID"
    }, {
      "name": "first_name",
      "dataType": "text",
      "remoteType": "varchar(16777216)",
      "isPrimaryKey": false,
      "nullable": true,
      "remoteColumn": "FIRST_NAME"
    }, {
      "name": "last_name",
      "dataType": "text",
      "remoteType": "varchar(16777216)",
      "isPrimaryKey": false,
      "nullable": true,
      "remoteColumn": "LAST_NAME"
    }, {
      "name": "first_order",
      "dataType": "date",
      "remoteType": "date",
      "isPrimaryKey": false,
      "nullable": true,
      "remoteColumn": "FIRST_ORDER"
    }, {
      "name": "most_recent_order",
      "dataType": "date",
      "remoteType": "date",
      "isPrimaryKey": false,
      "nullable": true,
      "remoteColumn": "MOST_RECENT_ORDER"
    }, {
      "name": "number_of_orders",
      "dataType": "numeric(18,0)",
      "remoteType": "number(18,0)",
      "isPrimaryKey": false,
      "nullable": true,
      "remoteColumn": "NUMBER_OF_ORDERS"
    }, {
      "name": "total_order_amount",
      "dataType": "numeric",
      "remoteType": "number(38,6)",
      "isPrimaryKey": false,
      "nullable": true,
      "remoteColumn": "TOTAL_ORDER_AMOUNT"
    }]
  }
}

Update multiple data sources

PUT /snowflake/bulk

Update the data source metadata associated with the provided connection string.

Payload parameters

AttributeDescriptionRequired

handler

metadata Includes metadata about the handler, such as ssl, port, database, hostname, username, and password.

Yes

connectionString

string The connection string used to connect to the data sources.

Yes

Response parameters

AttributeDescription

bulkId

string The ID of the bulk data source update.

connectionString

string The connection string shared by the data sources bulk updated.

jobsCreated

integer The number of jobs that ran to update the data sources; this number corresponds to the number of data sources updated.

Request example

This request updates the metadata for all data sources with the connection string specified in example-payload.json.

curl \
    --request PUT \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer dea464c07bd07300095caa8" \
    --data @example-payload.json \
    https://demo.immuta.com/snowflake/bulk

Payload example

The payload below updates the database to ANALYST_DEMO for the provided connection string.

{
  "handler": {
    "metadata": {
      "ssl": true,
      "port": 443,
      "database": "ANALYST_DEMO",
      "hostname": "demo.us-east-1.snowflakecomputing.com",
      "username": "yourusername",
      "userFiles": [],
      "warehouse": "YOUR_WH",
      "authenticationMethod": "userPassword",
      "password": "yourpassword"
    }
  },
  "connectionString": "demo.us-east-1.snowflakecomputing.com:443/ANALYST_DEMO"
}

Response example

{
  "bulkId": "bulk_ds_update_54ada6bhashedvaluea0c80cecd9d62",
  "jobsCreated": 5
}

Recalculate the high cardinality column for a data source

PUT /snowflake/handler/{handlerId}/triggerHighCardinalityJob

Recalculate the high cardinality column for the specified data source.

Query parameters

AttributeDescriptionRequired

handlerId

integer The ID of the handler.

Yes

Response parameters

The response returns a string of characters that identify the high cardinality job run.

Request example

This request re-runs the job that calculates the high cardinality column for the data source with the handler ID 30.

curl \
    --request PUT \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer dea464c07bd07300095caa8" \
    https://demo.immuta.com/snowflake/handler/30/triggerHighCardinalityJob

Response example

c12fd320-22d8-11ec-b2b8-874838eeef05

Refresh a native view

PUT /snowflake/handler/{handlerId}/refreshNativeViewJob

Refresh the native view of a data source.

Query parameters

AttributeDescriptionRequired

handlerId

integer The ID of the handler.

Yes

Response parameters

The response returns a string of characters that identifies the refresh view job run.

Request example

This request refreshes the view for the data source with the handler ID 7.

curl \
    --request PUT \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer dea464c07bd07300095caa8" \
    https://demo.immuta.com/snowflake/handler/7/refreshNativeViewJob

Response example

53c256d0-eb57-11ec-b275-d95a8e998142
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