Debugging Serverless Framework invoke local function

Question

I am trying to debug sls invoke local.

My setup:

However I keep getting:

/Users/nikos/.nvm/versions/node/v6.9.1/bin/node --debug-brk=63417 --expose_debug_as=v8debug /Users/nikos/.nvm/versions/node/v6.9.1/bin/serverless invoke local -f createTodo
Debugger listening on [::]:63417

Process finished with exit code 130 (interrupted by signal 2: SIGINT)

Answer 1

OK, I've figured out how to do this with real Chrome Devtools with the excellent node --inspect. This is much better than node inspector because it uses the latest built in chrome devtools. (more info on node inspect)

node --debug-brk --inspect $(which serverless) invoke local -f myfunctionname

I ran that but my function wasn't loaded yet (probably some lazy loading in the serverless code). So I added a debugger to the top line of my function and everything seems to be working great.

In my case I also needed some test data, so I passed that through like this.

node --debug-brk --inspect $(which serverless) invoke local -f postprocess -d '{"Records":[{"eventVersion":"2.0","eventSource":"aws:s3","awsRegion":"us-east-1","eventTime":"2017-06-17T05:08:29.598Z","eventName":"ObjectCreated:Put","userIdentity":{"principalId":"ALS78N87ZDYNW"},"requestParameters":{"sourceIPAddress":"52.119.114.78"},"responseElements":{"x-amz-request-id":"2EB4FAD5892EC247","x-amz-id-2":"nVLasIYsWvWm7xwONiTB6z7L8oXKkvPOb9FntOYoG/kKS+PuWwbMJ1xM7n/C1X3NJh5FUCj4aEM="},"s3":{"s3SchemaVersion":"1.0","configurationId":"3c3b2a71-b639-4116-b246-08dcacd0c7d6","bucket":{"name":"simmer-uploads-test","ownerIdentity":{"principalId":"ALS78N87ZDYNW"},"arn":"arn:aws:s3:::simmer-uploads-test"},"object":{"key":"example+%285%29.zip","size":4757597,"eTag":"9aa90579ee4e8152e6dfa60258754a83","sequencer":"005944B94AD9307261"}}}]}'

I am working on a Mac, and I heard there might be some problems with $(which serverless) on windows. But someone give it a shot and let me know.

Answer 2

I was able to setup my PHPStorm debugger configuration in a way that now I can step through my functions locally (using serverless-offline plugin).

I am triggering functions via http requests using Postman.

See below steps to achieve this:

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