The example below is for work with react, please change the configuration accordingly if you don't need react at all. So lerna run build will build all the packages in our repository The only lerna command we care about is lerna run this lets us run a script across all our packages. This repository is a minimum working example of a web application using Yarns workspace, TypeScript, esbuild, Express, and React in a monorepo pattern. Each of my lambda functions is its own workspace. This also means that the nodemodules folder that amplify zips up as a part of your deployed lambda is empty (all imported files are bundled by esbuild). Yarn supports workspaces natively, and its CLI takes advantage of that Yarn uses a bash-like portable shell to make package scripts portable across of Windows. They will never try to support the high-level feature that Lerna offers, but by implementing the core logic of the resolution and linking steps inside Yarn itself we hope to enable new usages and improve performance. The last piece of my setup involves leveraging yarn workspaces to share dependencies and avoid excessive duplication. Note as we don't care about lerna for package management, the npmClient doesn't really matter. Yarn’s workspaces are the low-level primitives that tools like Lerna can (and do ) use. Your base directory once completed will look something likeĮnter fullscreen mode Exit fullscreen mode Together with the resolutions field, you can even patch a package located deep within your dependency tree. To get started we need to setup our base directory it will contain a few key files, which will be explained in more detail below. (This will likely not work well with npm and would not recommend using that) All we need to provide is the pnp plugin for esbuild. This solution includes: Yarn 2 workspaces for package management TypeScript project references for inter-module dependencies ESLint and Prettier for linting and formatting Jest for unit testing Webpack and ESBuild for bundling React / Next. This guide is really optimized towards typescript monorepos that also contain packages that can be deployed but really should work for any typescript monorepos.įor this guide, we will be using pnpm but this should mostly work the space with yarn just swap out pnpm workspaces with yarn workspaces. Com/t7yang/ts-yarn-workspace-demo File StructureMonorepo - git repository that. ![]() That said when using modern advanced tooling, you can and will run into some compatibility problems so this guide might be slightly esoteric for you. This guide aims to do that for 2021, with the best in class tooling at this time. ![]() When I was setting up our production monorepo at, I found most typescript monorepo guides were quite lacking in addressing a lot of more detailed problems you run into or how to solve them with modern solutions. Because esbuild is written in Go, support for Yarn PlugnPlay has been completely re-implemented in Go instead of relying on Yarns JavaScript API.
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