This is an example of how to bundle a ClojureScript artifact with webpack on node

package

#!/bin/bash

do_usage() {
    echo
    echo "Package the zip ready for lambda deployment."
    echo
    echo " -s is the stage, will default to dev is absent."
    echo " -p accepts an dir path where the package will be copied, it defaults
    to \"./.serverless\"".
    echo " -B option skips compilation, in case you already have compiled
    and you just need to deploy."
    echo
    echo "Usage:"
    echo "package [-B] [-s <stage>] [-p <package_dir>]"
    exit 1
}

set -euo pipefail

stage="dev"
package_dir=".serverless"
no_compile=

while getopts ":s:Bp:" opt; do
    case $opt in
        s)  stage="$OPTARG"
            ;;
        B)  no_compile=1
            ;;
        p)  package_dir="$OPTARG"
            ;;
        \?) do_usage
            ;;
    esac
done

out_dir="./out"
mkdir -vp "$package_dir"
package_dir=$(readlink -f "$package_dir")

if [ -z $no_compile ]; then

    # compile
    ./scripts/build $stage
fi

# install only production deps
# if [[ $stage == "prod" ]]; then
    # rm -r node_modules
    # yarn install --production
# else
    # yarn install
# fi

# bundle
webpack_mode=development
if [[ "$stage" == "prod" ]]; then
    webpack_mode=production
fi

declare -a function_names
function_names=( $("./scripts/function-names") )

if [[ "$stage" == "prod" ]]; then
    for fn in "${function_names[@]}"; do
        function_dir="./$fn"
        compiled_file="$function_dir/index.js"
        bundled_file="$function_dir/index.js"

        yarn webpack --mode "$webpack_mode" --config-name "$fn" --config webpack.config.js
    done
fi

artifact_name="ep-cloud-lambda-cqrs.zip"
artifact_zip="$package_dir"/"$artifact_name"
artifact_file_list="./scripts/azure-package-files.txt"

# zip the files we have to
cat "$artifact_file_list" | zip -@ "$artifact_zip"

if [[ ! "$stage" == "prod" ]]; then
    # zip node_modules
    zip -ur "$artifact_zip" node_modules

    # zip shadow's cljs runtime
    for fn in "${function_names[@]}"; do
        runtime_dir="./$fn/cljs-runtime"
        zip -ur "$artifact_zip" "$runtime_dir"
    done
fi

webpack.config.js

const path = require("path");
const webpack = require("webpack");

module.exports = {
  target: "node",
  entry: {
    "init-store": "./out/unbundled.js"
  },
  output: {
    filename: "./[name]/index.js",
    path: __dirname,
    libraryTarget: "commonjs2",

    auxiliaryComment: "Bundled artifact."
  },
  plugins: [
    new webpack.IgnorePlugin(/pg-native/, /\/pg\//),
    new webpack.IgnorePlugin(/pg-native/),
    new webpack.IgnorePlugin(/dtrace-provider/)
  ]
};