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Use Webpack to optimize your Serverless Node.js Functions

JavaScript 100.00%

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Can't deploy multiple functions at once

After trying to run sls function deploy --all I see the following.

If I try to deploy each function individually it works, but any more than 1 at a time fails with only one of the zips being created properly.

Only happens with webpack plugin.

On version 0.5.5 of serverless using node 5.11.0

Let me know if you need more details

Serverless: ------------------------
Serverless: Failed to deploy the following functions in "dev" to the following regions:
Serverless: us-west-2 ------------------------
Serverless:   create: Uploaded file must be a non-empty zip
Serverless:   read: Uploaded file must be a non-empty zip
Serverless:   archive: Uploaded file must be a non-empty zip
/usr/local/lib/node_modules/serverless/node_modules/bluebird/js/release/async.js:61
        fn = function () { throw arg; };
                           ^

ServerlessError: Function Deployment Failed
  at new ServerlessError (/usr/local/lib/node_modules/serverless/lib/Error.js:17:11)
  at FunctionDeploy.<anonymous> (/usr/local/lib/node_modules/serverless/lib/actions/FunctionDeploy.js:126:19)
  at next (/usr/local/lib/node_modules/serverless/node_modules/rimraf/rimraf.js:74:7)
  at FSReqWrap.CB [as oncomplete] (/usr/local/lib/node_modules/serverless/node_modules/rimraf/rimraf.js:110:9)
From previous event:
  at FunctionDeploy.functionDeploy (/usr/local/lib/node_modules/serverless/lib/actions/FunctionDeploy.js:105:10)
From previous event:
  at /usr/local/lib/node_modules/serverless/lib/Serverless.js:186:31
  at Array.reduce (native)
  at /usr/local/lib/node_modules/serverless/lib/Serverless.js:185:32
From previous event:
  at Serverless._execute (/usr/local/lib/node_modules/serverless/lib/Serverless.js:183:12)
  at Serverless.actions.(anonymous function) (/usr/local/lib/node_modules/serverless/lib/Serverless.js:429:20)
  at Serverless.command (/usr/local/lib/node_modules/serverless/lib/Serverless.js:398:38)
  at /usr/local/lib/node_modules/serverless/bin/serverless:19:16
  at tryOnImmediate (timers.js:534:15)
  at processImmediate [as _immediateCallback] (timers.js:514:5)
From previous event:
  at Object.<anonymous> (/usr/local/lib/node_modules/serverless/bin/serverless:18:4)
  at Module._compile (module.js:413:34)
  at Object.Module._extensions..js (module.js:422:10)
  at Module.load (module.js:357:32)
  at Function.Module._load (module.js:314:12)
  at Function.Module.runMain (module.js:447:10)
  at startup (node.js:148:18)
  at node.js:405:3

Using `serverless function run`

Hey there! Gz for the update for v0.5.

So I'm in the process of setting it up. First of, I think that the readme should specify that in the s-function.json one should have "runtime": "nodejs",.

Second I tried serverless function run myfunc and I of course get an error because the js code is not going through babel (nor webpack). How could we solve this?

Thanks!

node-mysql2 works with uglifyjs

    new webpack.optimize.UglifyJsPlugin({
      compress: {
        unused: true,
        dead_code: true,
        warnings: false,
        drop_debugger: true,
      },
      comments: false,
      mangle: false,
    }),

mangle:false

the above setting will allow node-mysql2 to work, not really an issue per say but just a discovery for modules that have problems,

Make this plugin's API use only one copy of webpack by default

Last week, I hit this obscure webpack error:

Error: No template for dependency: TemplateArgumentDependency

which was resolved with the following:

webpack/webpack#1082 (comment)

Is there a good way to either structure the docs or redo the way serverless-webpack-plugin uses webpack to help prevent newcomers from using more than one copy of webpack by default?

adding entry to webpack.config.js

@sanjo this pull request #21

added support for loading modules before the handler. However, when I do as the docs suggest I get this error:

Serverless:   my-function: Path must be a string. Received [ 'babel-polyfill' ]

...


/usr/local/lib/node_modules/serverless/node_modules/bluebird/js/release/async.js:61
        fn = function () { throw arg; };
                           ^
ServerlessError: Function Deployment Failed
    at new ServerlessError (/usr/local/lib/node_modules/serverless/lib/Error.js:17:11)
    at FunctionDeploy.<anonymous> (/usr/local/lib/node_modules/serverless/lib/actions/FunctionDeploy.js:126:19)
    at next (/usr/local/lib/node_modules/serverless/node_modules/rimraf/rimraf.js:74:7)
    at FSReqWrap.CB [as oncomplete] (/usr/local/lib/node_modules/serverless/node_modules/rimraf/rimraf.js:110:9)
From previous event:
    at FunctionDeploy.functionDeploy (/usr/local/lib/node_modules/serverless/lib/actions/FunctionDeploy.js:105:10)
From previous event:
    at /usr/local/lib/node_modules/serverless/lib/Serverless.js:211:25
    at Array.reduce (native)
    at Serverless._execute (/usr/local/lib/node_modules/serverless/lib/Serverless.js:210:26)
    at Object.actions.(anonymous function) [as functionDeplo

this is my webpack.config.js:

var webpack = require("webpack");

module.exports = {
  target: "node",
  entry: ["babel-polyfill"],
  externals: [
    "aws-sdk"
  ],
  resolve: {
    extensions: ["", ".js"]
  },
  devtool: "source-map",
  plugins: [
    new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
    new webpack.optimize.DedupePlugin(),
    new webpack.optimize.OccurenceOrderPlugin(),
    new webpack.optimize.UglifyJsPlugin({
      compress: {
        unused: true,
        dead_code: true,
        warnings: false,
        drop_debugger: true
      }
    })
  ],
  module: {
    loaders: [
      {
        test: /\.jsx?$/,
        loader: "babel",
        exclude: /node_modules/,
        query: {
          presets: ["es2015", "node6", "stage-0"]
        }
      }
    ]
  }
};

Path issue deploying from project root

Hi there,

Deploying from project root using sls dash deploy does not prepend each component's folder to the entry point path (I only have one component called api). Running the same command from within the component's folder works just fine.

Is there anything I'm missing when configuring the plugin? My entry in s-component.json in this case is:

"custom": {
    "webpack": {
      "configPath": "api/webpack.config.js"
    }
  }

I went through the code in bundle.js but couldn't figure out where the issue might be. I'm not very familiar with Serverless plugins and can't figure out where the component's name or folder path would come from.

Automatically zip up modules in externals

Breaking with serverless v0.5?

Hello there! serverless 0.5 isn't working here:

/usr/local/lib/node_modules/serverless/node_modules/bluebird/js/release/async.js:49
        fn = function () { throw arg; };
                           ^

TypeError: Class extends value #<Serverless> is not a function or null
    at getPlugin (/my-serverless-project/node_modules/serverless-webpack-plugin/index.js:6:35)
    at Serverless._loadPlugins (/usr/local/lib/node_modules/serverless/lib/Serverless.js:286:25)
    at Serverless.loadProjectPlugins (/usr/local/lib/node_modules/serverless/lib/Serverless.js:240:10)
    at /usr/local/lib/node_modules/serverless/lib/Serverless.js:77:41
From previous event:
    at Serverless.init (/usr/local/lib/node_modules/serverless/lib/Serverless.js:73:25)
    at Object.<anonymous> (/usr/local/lib/node_modules/serverless/bin/serverless:17:12)
    at Module._compile (module.js:413:34)
    at Object.Module._extensions..js (module.js:422:10)
    at Module.load (module.js:357:32)
    at Function.Module._load (module.js:314:12)
    at Function.Module.runMain (module.js:447:10)
    at startup (node.js:142:18)
    at node.js:939:3

any clue?

Thanks!

npm does not reflect changes made in index.js

additions from this pull request, though merged is not reflected in npm modules when you do npm install serverless-webpack-plugin. Might need to publish the npm package

node-mysql2 "undefined is not a function", "errorType": "TypeError"

hello all, i've been trying to get node-msql2 to work with lambda and i keep getting the above error, turns out, it was caused by webpack's uglifyjs plugin, disable it, and your bundle size will increase by 100%, but this error goes away. In any case, because this is not being transferred every time your client views your page, a big bundle size really doesn't matter that much.

just wanted to point that out, so you don't waste hours on it for no reason 👍

Error: Cannot find module '<<root>>'] code: 'MODULE_NOT_FOUND'

I am getting this error after following the instruction from README.md.

Serverless: Deploying the specified functions in "demo" to the following regions: us-east-1  
Serverless: | { [Error: Cannot find module '<<root_folder>>'] code: 'MODULE_NOT_FOUND' }
Serverless: ------------------------  
Serverless: Successfully deployed the following functions in "demo" to the following regions:   
Serverless: us-east-1 ------------------------  
....
metric filters created

My configuration in s-function.json is:

"custom": {
    "excludePatterns": [],
    "webpack": {
      "configPath": "./"
    }
  }

Not such what I am doing wrong.

Version 0.4.4. is broken

We found that in the version 0.4.4 imports and requires are not resolving properly on lambda deployment.

It works fine if version is reverted to 0.4.3

Error we get is:

Module not found: Error: Cannot resolve 'file' or 'directory' ../../lib/auth/login in /home/$PATH/_meta/_tmp/login@1468978270231
 @ ./_meta/_tmp/login@1468978270231/handler.js 12:13-44

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