I am pretty new to both nodejs and AWS Lambda. I have created a very small nodejs function that is working fine locally. Now I need to run it on AWS Lambda, but looks like there are some handlers requirement which I am not understanding completely.
Below is my nodejs function that I need to run it on Lambda. Any idea what changes do I need to make to execute it on AWS? Thanks
(async function () {
DOMAIN = "abc.xyz.com";
KEY = "***";
const mailchimpClient = require("@mailchimp/mailchimp_transactional")(KEY);
const run = async () => {
const response = await mailchimpClient.senders.addDomain({
domain: DOMAIN,
});
console.log(response);
};
run();
})();
Basically you just need to export a function with a specific name: handler
exports.handler = async function(event, context) {
console.log("EVENT: \n" + JSON.stringify(event, null, 2))
return "foo.bar"
}
In this handler, you just need to return something to mark as success or throw an error to mark as failure.
In your case, this should work:
var DOMAIN = "abc.xyz.com";
var KEY = "***";
const mailchimpClient = require("@mailchimp/mailchimp_transactional")(KEY);
exports.handler = async function(event, context) {
const response = await mailchimpClient.senders.addDomain({
domain: DOMAIN,
});
console.log(response);
return "success"
}
Here more examples and advanced configurations:
It depends if you are using any framework to create your aws serverless code.
However, your usual code would be somthing like this.
exports.handler = function(event, context) {
console.log('Lambda A Received event:', JSON.stringify(event, null, 2));
context.succeed('Hello ' + event.name);
};
If you want a easier way to work with AWS serverless code such as Lambdas look at arc.codes
Also, here is a link to the AWS docs https://docs.aws.amazon.com/lambda/latest/dg/nodejs-handler.html