How to debug aws lambda functions written in node js

Question

We have been developing AWS Lambda functions in Node JS for a few months. Can we debug, i.e. step through the Node JS code as we can with .Net C# code in Visual Studio?

Answer 1

The easiest option I have so far with VS Code is this:

1. Create a new file, lets say call it debug.js and just call your lambda function from here, something like this: const app = require('./index') app.handler()

2. Change program entry of the launcher.json file like this: "program": "${workspaceFolder}//debug.js"

3. You can now just put a breakpoint on this line (app.handler()) and it works