Critical dependency: require function is used in a way in which dependencies cannot be statically extracted

[aubelsb2]

Description

Provide a clear and concise description of the issue, including what you expected to happen.

When I try compile
"auth0": "^2.25.1",
With webpack, I get the following error:

WARNING in ./node_modules/formidable/lib/incoming_form.js 1:43-50
Critical dependency: require function is used in a way in which dependencies cannot be statically extracted
 @ ./node_modules/formidable/lib/index.js
 @ ./node_modules/superagent/lib/node/index.js
 @ ./node_modules/rest-facade/src/Client.js
 @ ./node_modules/rest-facade/src/index.js
 @ ./node_modules/auth0/src/auth/index.js
 @ ./node_modules/auth0/src/index.js
 @ ./authenticate_authorizer.js

Reproduction

handler.js

const slsw = require('serverless-webpack');
module.exports = {
    target: 'node',
    entry: slsw.lib.entries,
    mode: slsw.lib.webpack.isLocal ? 'development' : 'production',
    node: false,
    optimization: {
        minimize: true,
    },
    devtool: 'nosources-source-map',
};

package.json

{
  "name": "serverlessopttest",
  "version": "1.0.0",
  "description": "",
  "main": "handler.js",
  "dependencies": {
    "source-map-support": "^0.5.19"
  },
  "devDependencies": {
    "@webpack-cli/init": "^0.3.0",
    "serverless": "^1.71.3",
    "serverless-webpack": "^5.3.2",
    "auth0": "^2.25.1",
    "webpack": "^4.43.0",
    "webpack-cli": "^3.3.11"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC"
}

serverless.yml

service: serverless-simple-http-endpoint

frameworkVersion: ">=1.1.0 <2.0.0"

provider:
  name: aws
  runtime: nodejs12.x
custom:
#  optimize:
#    debug: true
##    minify: false
  webpack:
    webpackConfig: 'webpack.config.js'   # Name of webpack configuration file
    includeModules: false   # Node modules configuration for packaging
    packager: 'npm'   # Packager that will be used to package your external modules
#    excludeFiles: src/**/*.test.js # Provide a glob for files to ignore
    keepOutputDirectory: true

functions:
  currentTime:
    handler: handler.endpoint
    events:
      - http:
          path: ping
          method: get
plugins:
#  - serverless-plugin-optimize
  - serverless-webpack

webpack.config.js

const slsw = require('serverless-webpack');
module.exports = {
    target: 'node',
    entry: slsw.lib.entries,
    mode: slsw.lib.webpack.isLocal ? 'development' : 'production',
    node: false,
    optimization: {
        minimize: true,
    },
    devtool: 'nosources-source-map',
};

When run:

>sls deploy
Serverless: Bundling with Webpack...
Time: 8541ms
Built at: 29/05/2020 11:04:33 am
         Asset      Size  Chunks                   Chunk Names
    handler.js  1.33 MiB       0  [emitted]        handler
handler.js.map  1.08 MiB       0  [emitted] [dev]  handler
Entrypoint handler = handler.js handler.js.map
  [0] external "util" 42 bytes {0} [built]
  [1] ./node_modules/rest-facade/src/index.js 154 bytes {0} [built]
  [6] ./node_modules/auth0/src/utils.js 1.95 KiB {0} [built]
 [16] external "fs" 42 bytes {0} [built]
 [18] external "path" 42 bytes {0} [built]
 [48] ./node_modules/object.assign/index.js 355 bytes {0} [built]
 [60] (webpack)/buildin/module.js 497 bytes {0} [built]
 [61] ./node_modules/source-map/source-map.js 405 bytes {0} [built]
[141] ./node_modules/auth0/src/auth/index.js 16.3 KiB {0} [built]
[161] ./handler.js 569 bytes {0} [built]
[162] ./node_modules/source-map-support/source-map-support.js 19.3 KiB {0} [built]
[169] ./node_modules/buffer-from/index.js 1.56 KiB {0} [built]
[170] ./lib/asdf.js 286 bytes {0} [built]
[171] ./node_modules/auth0/src/index.js 244 bytes {0} [built]
[172] ./node_modules/auth0/src/management/index.js 88.6 KiB {0} [built]
    + 465 hidden modules

WARNING in ./node_modules/formidable/lib/incoming_form.js 1:43-50
Critical dependency: require function is used in a way in which dependencies cannot be statically extracted
 @ ./node_modules/formidable/lib/index.js
 @ ./node_modules/superagent/lib/node/index.js
 @ ./node_modules/rest-facade/src/Client.js
 @ ./node_modules/rest-facade/src/index.js
 @ ./node_modules/auth0/src/management/index.js
 @ ./node_modules/auth0/src/index.js
 @ ./handler.js
Serverless: Packaging service...
Serverless: Uploading CloudFormation file to S3...
Serverless: Uploading artifacts...
Serverless: Uploading service serverless-simple-http-endpoint.zip file to S3 (890.88 KB)...
Serverless: Validating template...
Serverless: Updating Stack...
Serverless: Checking Stack update progress...
..............
Serverless: Stack update finished...
Service Information
service: serverless-simple-http-endpoint
stage: dev
region: us-east-1
stack: serverless-simple-http-endpoint-dev
resources: 11
api keys:
  None
endpoints:
  GET - https://1qae7l63j8.execute-api.us-east-1.amazonaws.com/dev/ping
functions:
  currentTime: serverless-simple-http-endpoint-dev-currentTime
layers:
  None
Serverless: Removing old service artifacts from S3...
Serverless: Run the "serverless" command to setup monitoring, troubleshooting and testing.

Environment

Please provide the following:

• Version of this library used:
  "auth0": "^2.25.1",

• Version of the platform or framework used, if applicable:

>node --version
v13.11.0

• Serverless: ^1.71.3 (latest)
• Webpack: "^5.3.2" (latest)

• Other relevant versions (language, server software, OS, browser):
  Win 10
• Other modules/plugins/libraries that might be involved:

[aubelsb2]

It also cause the lambda to hang until timeout before it exports the function.

[aubelsb2]

I was able to find this issue which might be related from the auth0-spa-js package: auth0/auth0-spa-js#447

[jimmyjames]

Hi @aubelsb2, sorry for the delayed response.

Looking at the stack trace, this appears to be rooted in the formidable library:

 @ ./node_modules/formidable/lib/index.js
 @ ./node_modules/superagent/lib/node/index.js
 @ ./node_modules/rest-facade/src/Client.js
 @ ./node_modules/rest-facade/src/index.js
 @ ./node_modules/auth0/src/management/index.js
 @ ./node_modules/auth0/src/index.js
 @ ./handler.js
S

I found an issue in that library that appears to be a report of the same problem. There's also a workaround suggested, you might want to try that. If that doesn't work or isn't acceptable, I'd suggest either continuing the conversation on that issue, or opening a new issue there.