Learn TypeScript w/ Mike North

Project Tour

March 24, 2022

Table of Contents

The GitHub repo for the workshop project is here.

Project Setup

First, if you want to ensure you’re using the correct Node.js and package manager versions, install Volta

sh
# install Volta
curl https://get.volta.sh | bash
# install Node
volta install node

Then, check out a local copy of this repository

sh
git clone git@github.com:mike-north/full-stack-ts
cd full-stack-typescript

Next, install the project dependencies

sh
yarn

Build the project for the first time

sh
yarn build

And finally, start the project

sh
yarn dev

After the client and server build processes complete, you should see an “imitation Twitter” running on http://localhost:1234.

Project tour

There are three top level folders

  • /client - A React frontend
  • /server - A Node.js backend
  • /shared - Code that can be imported by both the frontend and backend

Each has its own package.json, and we’re using yarn workspaces. This is a monorepo, but it’s very simple in terms of tooling and running things.

Some interesting things to study before we dig in

  • The .eslintrc file
  • The tsconfig.json files
  • The db.json file (this is the data for our database)
  • Take a look at the entry points for both client and server

    • /server/src/index.ts
    • /client/src/index.tsx

Commands we can run in this project

You can run the following, either within a sub-project (client, server or shared) or at the top level folder for the repo.

  • yarn dev “runs the thing”
  • yarn build “builds the thing”
  • yarn lint “lints the thing”

Give these a try.

Note that running yarn dev in the server component will also build and start the client project. Effectively this means starting server will start the “whole app”.

There’s one more command we’ll get into later, but doesn’t work (yet) in the starting point code

  • yarn codegen “runs all code generation stuff for the thing”

What state are we in at the start?

On the master branch of the course project,

  • client runs on all hardcoded data that’s held in top-level module scope of various components. It is built with parcel
  • server does not have any kind of API at all, but it has a working data store (built on lowdb) in ./db.ts that you can use to get records of various kinds.

Where will we be by the end of the course?

  • You’ll be able to create new tweets
  • Most of what you see on the screen will be driven by information in the database, and coming from the backend
  • You’ll be able to like and un-like tweets

What won’t we end up having to touch in this course?

  • We won’t mess with any CSS
  • We won’t have to install any dependencies
  • We won’t have to change the typescript config
  • We won’t have to worry about how the backend interacts with the database

Once you’re ready, let’s jump in to the project!



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