Lambda Node 8 function not awaiting method (AWS service call) to complete - node.js

Question

I'm creating an invalidation to CloudFront via API Gateway call to Lambda, but the invalidation only gets processed about 1 in 5 attempts. I'm certain I am missing something that would properly wait for the createInvalidation method to be called.
'use strict';
var AWS = require('aws-sdk');
var cloudfront = new AWS.CloudFront();
var distID = process.env.DISTRIBUTION_ID;
exports.handler = async(event) => {
var path = (event.queryStringParameters.path);
console.log(event.queryStringParameters.path);
var params = {
DistributionId: distID,
InvalidationBatch: {
CallerReference: (event.requestContext.requestId),
Paths: {
Quantity: 1,
Items: [
path
]
}
}
};
await cloudfront.createInvalidation(params, function(err, data) {
if (err) console.log(err, err.stack); // an error occurred
else console.log(data); // successful response
return data;
});
};
The Lambda function completes every time and is receiving and parsing the API Gateway call just fine to populate the variables, but the createInvalidation only happens about 1 in 5 attempts, though no errors result from the other 4 attempts.

Answer 1

Try the following snippet:
// import * as AWS from 'aws-sdk';
exports.handler = async(event) =>
{
const cloudfront = new AWS.CloudFront();
const distID = process.env.DISTRIBUTION_ID;
const path = (event.queryStringParameters.path);
console.log(event.queryStringParameters.path);
const params =
{
DistributionId: distID,
InvalidationBatch:
{
CallerReference: (event.requestContext.requestId),
Paths: { Quantity: 1, Items: [ path ] }
}
};
try
{
const resp = await cloudfront.createInvalidation(params).promise();
console.log(resp);
}
catch (ex)
{
console.error(ex);
}
};