Query Power BI XMLA Data through ODBC in Node.js

Node.js is a JavaScript runtime environment that allows you to run JavaScript code outside of a browser. With the CData ODBC Driver for Power BI XMLA, you can access live Power BI XMLA data from Node.js apps and scripts. In this article, we walk through installing node-odbc and the required tools to create a simple Node.js app with access to live Power BI XMLA data.

With built-in optimized data processing, the CData ODBC Driver offers unmatched performance for interacting with live Power BI XMLA data in Node.js. When you issue complex SQL queries from Node.js to Power BI XMLA, the driver pushes supported SQL operations, like filters and aggregations, directly to Power BI XMLA and utilizes the embedded SQL engine to process unsupported operations client-side (often SQL functions and JOIN operations).

Connecting to Power BI XMLA Data

If you have not already done so, provide values for the required connection properties in the data source name (DSN). You can use the built-in Microsoft ODBC Data Source Administrator to configure the DSN. This is also the last step of the driver installation. See the "Getting Started" chapter in the help documentation for a guide to using the Microsoft ODBC Data Source Administrator to create and configure a DSN.

By default, use Azure AD to connect to Microsoft Power BI XMLA. Azure AD is Microsoft’s multi-tenant, cloud-based directory and identity management service. It is user-based authentication that requires that you set AuthScheme to AzureAD.

For more information on other authentication schemes, refer to the Help documentation.

Building node-odbc

In order to connect to Power BI XMLA through the CData ODBC Driver, you need to build node-odbc manually (after installing the required tools).

Installing the Required Tools

The following commands install the tools required to build node-odbc (note the -g parameter, which installs the tools globally).

npm i -g windows-build-tools
npm i -g node-gyp

Building node-odbc

After installing the required tools, create a directory for the Node.js app and install odbc (which builds the binary for us to use in our Node.js script).

mkdir nodeodbc
cd nodeodbc
npm i -g node

Querying Power BI XMLA from Node.js

With the ODBC Driver installed, a DSN Configured, and node-odbc built, we are ready to query live Power BI XMLA data from a Node.js app. The sample code below connects to a specific DSN and queries the Customer table.

myscript.js

const odbc = require('odbc');

async function queryPowerBIXMLA() {
    const connection = await odbc.connect(`DSN=CData PowerBIXMLA Source`);
    const data = await connection.query('SELECT Country, Education FROM Customer');
    console.log(data);
}

queryPowerBIXMLA();

Once you write the app, use node to execute the script:

node myscript.js

Download a free, 30-day trial of the CData ODBC Driver for Power BI XMLA and start working with your live Power BI XMLA data in Node.js. Reach out to our Support Team if you have any questions.