To connect to ADP, you can use either a DSN or an ODBC connection string. Both of these methods use the Database's Open method.

Connect to a DSN

To connect using a DSN:

var db = new Database();
db.open("DSN=CData ADP Sys", (err) => {
    // Use the connection
});

Provide a Driver Connection String

To connect using an ODBC connection string:

var db = new Database();
db.open("DRIVER={CData ODBC Driver for ADP};OAuthClientId=YourClientId;OAuthClientSecret=YourClientSecret;SSLClientCert='c:\\cert.pfx';SSLClientCertPassword='admin@123';", (err) => {
    // Use the connection
});