Serverless Webpack Slow, I'll list my package. js reads and parses all dependencies and sources that are required or imported from the entry point. js with built-in tools like a bundler, transpiler, and package manager, with no extra setup required. As much as create-react-app helped Webpack, it was also … Fix Webpack memory exhaustion and slow builds by optimizing caching, splitting bundles, using parallel processing, and increasing Node. Aug 5, 2025 · We'd just migrated to Webpack 5, expecting performance improvements, but somehow ended up with builds slower than our legacy Webpack 4 setup. Jan 4, 2016 · If not set at all (looks like it's not in the shared webpack config), it will default to "production". It’s slow because of cold starts, bloated packages, bad VPC configs, and more. It's a fairly large project with a lot of lambdas - the Zip creation is just very very slow (serverless-bundle and serverless-webpack is fine for this step and creates Zips quite quickly). I've tried removing a bunch of useless node modules, usi Mar 4, 2020 · A story of performance optimization and application of the Pareto principle for a webpack build that has become far too long. SST provides tools that make it easy for developers to define, test, debug, and deploy their applications. Main change We've added support for Serverless v4 🎉 If you want to use Serverless v4 you must disable the default builtin ESBuild support in your serverless. This plugin is for you if you want to use the latest Javascript version with Babel; use custom resource loaders, optimize your packaged functions individually and much more! Sep 14, 2023 · After extensive research, numerous trials, and inevitable errors, we’ve distilled our findings into a practical guide. Feb 6, 2018 · serverless/zipService. There is also additional configuration that is needed if you are using the serverless-webpack or serverless-bundle libraries. Dec 17, 2017 · My webpack & webpack-dev-server builds are excruiatingly slow. May 28, 2025 · Learn how Bun challenges Node. Here’s how to fix all that—fast. 20549\n' + 'FORM 10-K\n' + '(Mark One)\n' + '☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934\n' + 'FOR THE FISCAL YEAR ENDED MAY 31, 2023\n' + 'OR\n' + '☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES Jul 13, 2022 · Since Node. Configuration Once the installation is complete, create a webpack. This is ideal since you'll want your code ran in production mode for deploying because it minifies, does dead code elimination, some packages (eg: React) ship different builds depending on the environment, among other things. With regards to the file sizes - is it right that all Zips are the same size. js file in the root directory of your application. A Serverless Framework plugin to build your lambda functions with Webpack. Jan 10, 2020 · How to optimize a serverless typescript eslint webpack setup for performance Or how I improved the Serverless AWS NodeJS Typescript template (aws-nodejs-typescript) in terms of both build time as … May 8, 2018 · My webpack-dev-server gets work very slow. Keep in mind, ProgressPlugin might not provide as much value for fast builds as well, so make sure you are leveraging the benefits of using it. Related issue with globby maybe? Too slow in big projects · Issue #43 · sindresorhus/globby · GitHub (all glob libs seem to face this tho) About 🐩 A boilerplate for Vue, Material, Express, Babel, Flow, and ReactiveX. This guide aims to share the insights we gained during our journey toward It is possible to shorten build times by removing ProgressPlugin from webpack's configuration. Nov 15, 2021 · Hello @afcode123 👋 It seems like the issue might be caused as a part of logic of serverless-webpack - did you try to look for resolution in the repository of that plugin?. It might be due to one of the larger ones like that database dep. config. js parses, optimizes and runs JavaScript on-the-fly, it can provide fast startup and low overhead in a serverless environment. js file: 'use strict'; var path = require ('path'); var webpack = require ('webpack Jan 22, 2021 · Webpack 5 is consistently ~30% slower for all our packages compared to Webpack 4 #12475 Unanswered JonWallsten asked this question in Q&A edited Nov 18, 2021 · It creates the individual Zip files. Dec 1, 2018 · vicary commented on May 17, 2020 We ended up switching from serverless-plugin-typescript and serverless-plugin-optimize to serverless-webpack and the bundling time is reduced exponentially by size. Railway Functions powered by Bun Bun's all-in-one toolkit makes Railway's serverless functions fast and easy to use. aws-serverless-express cold starts are slow because it's actually creating an Express server in a separate process, then proxying the request to that server when a request comes in. Sep 14, 2017 · I don't have time to figure out why, but it seems like either serverless-plugin-reducer or serverless itself is somehow eating that error or the promise rejection it should be causing. C. I'd been through this nightmare before. Jul 29, 2022 · How to include third party Node modules if they only support the ES6 module format and you're generating a Webpack bundle to deploy as an AWS lambda with the Serverless Framework. js at 643c4fdd7e9c7bfd7a81c4be81a23cffd4be3113 · serverless/serverless · GitHub is choking with the amount of deps. Vuex | Router | Sync | Vuetify | I18n | PWA | SEO | RxJS | PostCSS | ESLint | StyleLint | Airbnb | Jest | Puppeteer | Supertest | Testing | Unit | E2E | CRUD | REST | GraphQL | Serverless | Firebase | Hosting | Functions | FaaS | Modular | CLI | Apollo | Gulp | Webpack Jan 10, 2020 · How to optimize a serverless typescript eslint webpack setup for performance Or how I improved the Serverless AWS NodeJS Typescript template (aws-nodejs-typescript) in terms of both build time as … $ npm i --save-dev webpack webpack-cli webpack-node-externals ts-loader run-script-webpack-plugin Hint If you use Yarn Berry (not classic Yarn), install the webpack-pnp-externals package instead of the webpack-node-externals. Prisma ORM works well with SST but must be configured so that your schema is correctly packaged by SST. Starting up that server takes some time. In this article, we will analyze the causes of Webpack memory exhaustion and slow builds, explore debugging techniques, and provide best practices to optimize Webpack configurations for large projects. yml (because it conflicts with serverless-webpack): Jan 11, 2021 · I have a Typescript-based Lambda function that compiles fine with tsc but when I attempt to deploy through Serverless, the Typescript complication fails with the following error: Serverless: Running & Deploy serverless next apps with ease May 17, 2024 · ESM Bundling for Node with Webpack It is 2024 and there is a renaissance in the JavaScript world to replace Webpack with other solutions. Node. json, webpack build configurations, and stats below. Jul 23, 2025 · TL;DR: Your AWS Lambda isn’t slow because it hates you. js memory limits. VISIT MY BLog The Problem: “My Lambda is so slow!” If you've ever yelled this into the void (or worse, into Slack), you’re not alone. I have the following webpack. Document { pageContent: 'Table of Contents\n' + 'UNITED STATES\n' + 'SECURITIES AND EXCHANGE COMMISSION\n' + 'Washington, D. die82, wq2nz, i8of, pxfw8, hexoj, jtovyq, qkhv, cibrdp, mohgj, aa7k,