SOAP AWS Lambda function

Serverless Framework
,
1

I am testing a call to a SOAP service using node-soap library.
This works fine as a standalone node.js app and the SOAP service responds, however when I package the same code up as a serverless AWS lambda function, it doesn’t appear to create the soap client.

Any thoughts on why this might be happening?

export async function main(event, context) {
    var soap = require('soap');

    var url = 'https://service.blah.co.uk/Service/Function.asmx?wsdl';

    var soapOptions = {
    forceSoap12Headers: true
    };

    var soapHeader = {

    'SOAPAction': 'http://www.blah.co.uk/Services/GetToken'

    };

    var params = {

    xmlMessage: message

    };

    console.log(JSON.stringify(params));

    soap.createClient(url, soapOptions, function (err, client) {

    //the serverless AWS lambda function never reaches this point (deployed and invoked locally)

    console.log("In create client")
    
    if (err) console.log(err);

    client.addSoapHeader(soapHeader);

    client.GetToken(params, function (err, data) {

    console.log(data);

    });

    });
}
2

The issue was the use of async. The async keyword executes asynchronously and will return a Promise. Since it’s an asynchronous function, the Lambda is being terminated before it could actually execute the callback. (Credit goes to help on https://stackoverflow.com/questions/54945218/aws-lambda-node-soap-function-serverless-framework)