How to invoke locally? about serverless-nodejs-starter

[jayair]

Hmm that is weird. What version of serverless are you using?

[andrewoh531]

You've left out webpack in your command.

e.g. you need to run serverless webpack invoke local --function hello

[newbreedofgeek]

@andrewoh531 when I run serverless webpack invoke local --function hello I get Command "webpack invoke local" not found, Run "serverless so that does not work.

@jayair I'm using serverless version 1.8.0

[jayair]

@newbreedofgeek Can I see the full error?

[newbreedofgeek]

@jayair there is not much error detail, when I run serverless webpack invoke local --function hello

I get:

  Serverless Error ---------------------------------------
 
     Command "webpack invoke local" not found, Run "serverless
     help" for a list of all available commands.
 
  Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
 
  Your Environment Information -----------------------------
     OS:                 darwin
     Node Version:       6.10.3
     Serverless Version: 1.8.0

I have not made any changes after I cloned this project, I just clones it, ran npm install and then ran the above command. If I run serverless webpack invoke --function hello it works, but local does not work.

Actually what is the difference between the invoke and invoke local

[fwang]

Hi @newbreedofgeek, sorry for the confusion. Let me explain what the following commands do:

serverless invoke
serverless invoke local
serverless webpack invoke

The first 2 are built-in commands of Serverless Framework. The former serverless invoke runs your Lambda function remotely and serverless invoke local runs it locally.

(function (exports, require, module, __filename, __dirname) { export const hello = async (event, context, callback) => {
                                                              ^^^^^^
SyntaxError: Unexpected token export....
.....

The reason you got the above error earlier when you ran serverless invoke local --function hello was because Serverless Framework tried to run your Lambda function in es7 syntax without transpiling first. This is the expected behavior.

The tutorial uses this Serverless Framework plugin, serverless-webpack to handle transpile. The third command serverless webpack invoke is added on by the plugin. It will transpile the Lambda function, then invoke it locally. And serverless webpack invoke local is not a valid command.

[newbreedofgeek]

@fwang great! tnx :)