Issue with working serverless-webpack

[yoel-inboxhealth]

As the documentation says, I added this configuration inside my custom property in the serverless.yaml

 localstack:
 stages:
 # list of stages for which the plugin should be enabled
 - local
 - development
 host: http://localhost # optional - LocalStack host to connect to
 edgePort: 4566 # optional - LocalStack edge port to connect to
 autostart: true # optional - Start LocalStack in Docker on Serverless deploy
 networks: #optional - attaches the list of networks to the localstack docker container after startup
 - host
 - overlay
 lambda:
 # Enable this flag to improve performance
 mountCode: true # specify either "true", or a relative path to the root Lambda mount path

The webpack config is this for the serverless:

 webpack:
 webpackConfig: ./webpack.config.js
 includeModules: true
 excludeFiles: tests/**/*.{js,ts}
 keepOutputDirectory: true

This is the webpack configuration:

const path = require('path');
const slsw = require('serverless-webpack');
const nodeExternals = require('webpack-node-externals');

module.exports = {
 entry: slsw.lib.entries,
 target: 'node',
 mode: slsw.lib.webpack.isLocal ? 'development' : 'production',
 optimization: {
 minimize: false,
 },
 plugins: [],
 performance: {
 // Turn off size warnings for entry points
 hints: false,
 },
 externals: [nodeExternals()],
 module: {
 rules: [
 {
 test: /\.ts$/,
 use: 'ts-loader?configFile=tsconfig.build.json',
 exclude: [/node_modules/, /tests/],
 },
 ],
 },
 resolve: {
 extensions: ['.ts', '.js'],
 },
 output: {
 libraryTarget: 'commonjs2',
 path: path.join(__dirname, '.webpack'),
 filename: '[name].js',
 },
 cache: {
 type: 'filesystem',
 },
};

And I'm getting this error:

Execution environment startup failed:{"errorType":"Runtime.ImportModuleError","errorMessage":"Error: Cannot find module 'a-handler'\nRequire stack:\n- /var/runtime/index.mjs","trace":["Runtime.ImportModuleError: Error: Cannot find module 'a-handler'","Require stack:","- /var/runtime/index.mjs"," at _loadUserApp (file:///var/runtime/index.mjs:1087:17)"," at async UserFunction.js.module.exports.load (file:///var/runtime/index.mjs:1119:21)"," at async start (file:///var/runtime/index.mjs:1282:23)"," at async file:///var/runtime/index.mjs:1288:1"]}

And it looks like is because the handler path is incorrect, it says this

'_HANDLER': '.webpack/service/src/a-dir/a-handler.handle'

But when webpack package the code is located in .webpack/a-dir/a-handler.handle, what would be the solution for that, I'm kind of lost, should I update the output path?

[steffyP]

Hi @yoel-inboxhealth,

have you considered the README section for A note on using webpack?