ts-graphql-starter

This repository is an opinionated starter project to build a robust and scalable backend service in TypeScript, with a code-first approach, exposing a GraphQL endpoint, and using a postgres database as an example

Core dependencies

• 🚀Apollo Server
  → Spec-compliant GraphQL server that’s compatible with any GraphQL client
• 🏄‍♂️TypeGraphQL
  → Create GraphQL schema and resolvers using classes and decorators
• 🔰TypeDI
  → Simple yet powerful dependency injection tool
• 💎Prisma
  → Database toolkit replacing traditional ORMs and makes database access easy with an auto-generated query builder
• 🚦Jest
  → Testing Framework with a focus on simplicity
• 💅ESLint + Prettier
  → Linting tool with an opinionated code formatter

Quickstart

First you need Node, Yarn and Docker installed on your machine to run this project.

Then run the following commands :

1. yarn install → Install the dependencies
2. yarn prisma:generate → Generate the prisma client

3. yarn start -> Start the server and external dependencies

   🖥 Open a new terminal prompt

4. yarn prismaup -> Create initial tables

5. yarn prisma:seed -> Populate the database
6. The server is ready at http://localhost:3000/

Project architecture

The starter project comes with an architecture proposal inspired from the clean architecture.
I recommend to read this article to better understand how it works. Feel free to use it or adapt it to your needs.

.
├── prisma
│   ├── migrations
│   │   ├── 20200904123736-user
│   │   │   ├── README.md
│   │   │   ├── schema.prisma
│   │   │   └── steps.json
│   │   └── migrate.lock
│   ├── schema.prisma
│   └── seed.ts
├── src
│   ├── components
│   │   └── user
│   │       ├── __tests__
│   │       │   └── user.service.spec.ts
│   │       ├── adapters
│   │       │   └── user.repository.ts
│   │       ├── user.entity.ts
│   │       ├── user.service.ts
│   │       └── user.source.ts
│   ├── infrastructure
│   │   ├── database
│   │   │   └── prisma.client.ts
│   │   └── resolvers
│   │       └── user.resolver.ts
│   ├── index.ts
│   └── module.ts
├── docker-compose.deps.yml
├── package.json
└── tsconfig.json

Commands

• yarn start
  → Start the server with auto-restart on changes and the external dependencies
• yarn start:server
  → Start the server with auto-restart on changes
• yarn start:deps
  → Start the external dependencies with Docker
• yarn lint
  → Check linting and code formatting
• yarn test
  → Launch all tests with Jest
• yarn build
  → Build the project into plain javascript in the dist folder
• yarn prisma:generate
  → Generate the prisma client based on the schema
• yarn prismanew
  → Save a new migration to prisma/migrations
• yarn prismaup
  → Executes the migration against the database
• yarn prisma:seed
  → Populate the database using a seed

Notes

This project use Prisma Migrate to create and update tables. Unfortunately this migration tool is still in an experimental state, if it’s unsuitable for your project, you can replace this tool with db-migrate and use Prisma Introspection