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Query SAP Data through ODBC in Node.js

Use node-odbc to execute SQL queries against SAP data from 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 SAP, you can access live SAP 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 SAP data.

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

Connecting to SAP 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.

You can connect to SAP systems using either librfc32.dll, librfc32u.dll, NetWeaver, or Web Services (SOAP). Set the ConnectionType connection property to CLASSIC (librfc32.dll), CLASSIC_UNICODE (librfc32u.dll), NETWEAVER, or SOAP.

If you are using the SOAP interface, set the Client, RFCUrl, SystemNumber, User, and Password properties, under the Authentication section.

Otherwise, set Host, User, Password, Client, and SystemNumber.

Note: We do not distribute the librfc32.dll or other SAP assemblies. You must find them from your SAP installation and install them on your machine.

For more information, see this guide on obtaining the connection properties needed to connect to any SAP system.

Building node-odbc

In order to connect to SAP 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 SAP from Node.js

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

myscript.js

const odbc = require('odbc');

async function querySAPERP() {
    const connection = await odbc.connect(`DSN=CData SAPERP Source`);
    const data = await connection.query('SELECT MANDT, MBRSH FROM MARA');
    console.log(data);
}

querySAPERP();

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 SAP and start working with your live SAP data in Node.js. Reach out to our Support Team if you have any questions.