Registry / devops / serverless-plugin-webpack

serverless-plugin-webpack

library1.5.1jsnpmunverified

A Serverless Framework plugin that automatically bundles each Lambda function individually using Webpack. Version 1.5.1 is the latest stable release (last updated in 2018). It supports webpack 2.x and 3.x (peer dependency), and was designed to work with Serverless v1.18+. Key differentiators: zero configuration required, functions are packaged individually for minimal deployment size, uses an array of Webpack configs (one per function) for better tree-shaking, and supports sls package/deploy/deploy function commands. This plugin is distinct from the more popular serverless-webpack plugin (by elastic-coders) and is now essentially superseded by that and newer tools like serverless-bundle. No longer actively maintained; users should migrate to serverless-webpack or serverless-esbuild.

devops

npm install serverless-plugin-webpack

github ↗package ↗

INSTALL

IMPORT

SIG · SERVERLESS-PLUGIN-

serverless-plugin-webpack

devopsjavascriptv1.5.1

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

serverless-plugin-webpack

✓ // Add to serverless.yml plugins array plugins: - serverless-plugin-webpack

✗ // Using as an npm import in code (not applicable) const plugin = require('serverless-plugin-webpack'); // This is a Serverless plugin, not a code library

This is a Serverless Framework plugin, not a standard npm module. It is configured in serverless.yml, not imported in code.

Shows minimal setup: install plugin and webpack 3, configure serverless.yml, create webpack.config.js, and deploy.

// Install npm install serverless-plugin-webpack webpack@3 --save-dev // serverless.yml service: my-service plugins: - serverless-plugin-webpack provider: name: aws runtime: nodejs8.10 functions: hello: handler: handler.hello // webpack.config.js module.exports = { target: 'node', externals: [/aws-sdk/], module: { rules: [ { test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader', query: { presets: [ ['env', { target: { node: '8.10' }, useBuiltIns: true, modules: false, loose: true }], 'stage-0' ] } } ] } }; // Deploy sls deploy

Debug

Known issues

gotchaPlugin uses serverless service handler references directly; custom webpack configs must not define entry/output as they are set by the plugin.

fix

Do not specify entry or output in your webpack.config.js; the plugin will override them.

affects: >=1.0.0

deprecatedOnly supports webpack 2.x or 3.x. Webpack 4 and 5 are not supported.

fix

Upgrade to serverless-webpack (elastic-coders) which supports webpack 4+ and is actively maintained.

affects: >=1.0.0

gotchaIndividual function packaging may cause issues if functions share large dependencies; tree-shaking optimization can be unexpected if code has side effects.

fix

Ensure ES6 modules are used and configure sideEffects in package.json to avoid dead code elimination failures.

affects: >=1.0.0

breakingDropped support for Serverless < 1.18.0 in v1.3.0.

fix

Upgrade Serverless to v1.18.0 or later, or use an older version of the plugin.

affects: >=1.3.0

gotchaPlugin automatically adds '**' as an exclude at service level; if you have custom excludes they will be merged, but unexpected exclusions may occur.

fix

Review the generated .serverless directory to ensure correct files are included.

affects: >=1.0.0

Errors

Common errors & fixes

Error: Cannot find module 'webpack'

Webpack is a peer dependency and must be installed separately.

fix

npm install webpack@3 --save-dev

Error: Cannot find module 'serverless-plugin-webpack'

The plugin is not installed or not listed as a plugin in serverless.yml correctly.

fix

npm install serverless-plugin-webpack --save-dev and ensure it's in serverless.yml plugins array.

Error: The serverless instance is not supported

Serverless version is below 1.18.0 (as of v1.3.0).

fix

Upgrade Serverless to >=1.18.0.

TypeError: Cannot read property 'length' of undefined

Webpack stats output may be malformed when running in series (bug in v1.5.0).

fix

Update to v1.5.1 which fixes this bug.

Upgrade

Version history

1.5.1latest on npm

Audit

Dependencies

webpackrequiredPeer dependency required; only supports webpack 2.x or 3.x.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/goldwasserexchange/serverless-plugin-webpack ↗

packagehttps://www.npmjs.com/package/serverless-plugin-webpack ↗