Query SAP Data as a MySQL Database in Node.js

You can use CData Connect Server to query SAP data through a MySQL interface. Follow the procedure below to create a virtual database for SAP in Connect Server and start querying using Node.js.

CData Connect Server provides a pure MySQL, cloud-to-cloud interface for SAP, allowing you to easily query live SAP data in Node.js — without replicating the data to a natively supported database. As you query data in Node.js, CData Connect Server pushes all supported SQL operations (filters, JOINs, etc) directly to SAP, leveraging server-side processing to quickly return SAP data.

Create a Virtual MySQL Database for SAP Data

CData Connect Server uses a straightforward, point-and-click interface to connect to data sources and generate APIs.

1. Login to Connect Server and click Connections.
2. Select "SAP" from Available Data Sources.
3. Enter the necessary authentication properties to connect to SAP.

   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.

4. Click Save Changes
5. Click Privileges -> Add and add the new user (or an existing user) with the appropriate permissions.

With the virtual database created, you are ready to connect to SAP data from any MySQL client.

Query SAP from Node.js

The following example shows how to define a connection and execute queries to SAP with the MySQL module. You will need the following information:

• Host name, or address, and port: The address of your instance of the Connect Server (myinstance.cdatacloud.net) and the port (3306)
• Username and password: The username and password of a user you authorized on Connect Server
• Database name: The database you configured for SAP (sapdb)

Connect to SAP data and start executing queries with the code below:

var mysql      = require('mysql');
var fs         = require('fs');
var connection = mysql.createConnection({
  host     : 'myinstance.cdatacloud.net',
  database : 'sapdb',
  port	   : '3306',
  user     : 'admin',
  password : 'password',
  ssl      : {
    ca : fs.readFileSync('C:/certs/myCA.pem')
  }
});
connection.connect();
connection.query('SELECT * FROM MARA', function(err, rows, fields) {
  if (err) throw err;
  console.log(rows);
});

connection.end();