Compile a self-contained bundle for use in AWS Lambda

lambda-bundle.sh

#!/usr/bin/env bash

ERR_BROWSERIFY_NOT_FOUND=1
ERR_SOURCE_NOT_FOUND=2

AWS_STDLIBS="aws-sdk dynamodb-doc"

err_exit()
{
    if [ "x$2" != "x" ]; then
        echo "Error: $2" >&2
    fi

    exit $1
}

compile_omit_list()
{
    local IFS=" "
    local OMIT_PARAMS

    for LIB in $AWS_STDLIBS; do
        OMIT_PARAMS="$OMIT_PARAMS -u $LIB"
    done

    echo $OMIT_PARAMS
}

if [ "x$(which browserify)" = "x" ]; then
    err_exit $ERR_BROWSERIFY_NOT_FOUND "browserify not found"
fi

SOURCE="index.js"

if [ "x$1" != "x" ]; then
    SOURCE="$1"
fi

if [ ! -f "$SOURCE" ]; then
    err_exit $ERR_SOURCE_NOT_FOUND "source file not found: $SOURCE"
fi

TARGET="bundle-$SOURCE"

if [ "x$2" != "x" ]; then
    TARGET="$2"
fi

browserify --bare --no-bf --standalone bundle $(compile_omit_list) -e "$SOURCE" > "$TARGET"

As long as not using native modules, this approach should work ok. For bundling with native modules, see: https://aws.amazon.com/blogs/compute/nodejs-packages-in-lambda/