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berkeleytime-gql

New playground for the node/graphql rewrite

Before you start

  • Duplicate the env.example file and rename it .env
  • Run npm install

Development

  • Run npm run dev
  • Start you docker container from the berkeleytime repo node branch

Access to the GraphQL Playground (Dev only)

  • http://localhost:5001/graphql

Typesafety

The main concern for typesafety comes from the potential inconsistency between typedefs (GraphQL SDL) and your actual resolvers. To maintain typesafety, we use GraphQL Code Generation to generate types for schemas, resolvers and more.

To generate types, run npm run generate

Typesafety with Modules

Type safety is also set up within modules, see the documentation for more details.

Folder structure

Overview

.
├── src                        # Where your source code lives
│   ├── bootstrap              # Bootstrapping and loading of the API dependencies (Express, Apollo, Database, ...)
│   ├── db                     # Mongo schemas, models and types
│   ├── generated-types        # Generated types from codegen
│   ├── modules                # Business logic of the app divided by domain (such as User and Catalog)
│   ├── tests                  # Where all our testing strategy lives
│   ├── utils                  # Collection of utils function that we use in the project
│   ├── config.ts              # Config of the app, sourced by environment variables
│   └── index.ts               # Entry point of the API
│
├── jest-mongodb-config.js     # Optional if you don't use MongoDB!
├── jest.config.js             # Jest configuration
├── docker-compose.yml         # Docker compose configuration (Optional !)
├── .env.example               # Example of what your .env file should look like
├── .gitignore                 # Standard gitignore file
└── codegen.ts                 # Code generation configurations
├── package.json               # Node module dependencies
├── README.md                  # Simple readme file
└── tsconfig.json              # TypeScript compiler options

Module example (FOR NOW)

.
├── src
│   └── modules
│       └── user                      # Module name
│           ├── index.ts              # Entrypoint to the module
│           └── generated-types       # Generated types from codegen
│               └── module-types.ts   # Relevant GraphQL typescript types
│           └── typedefs              # Typedefs
│               └── [schema].ts       # A typedef for a schema
│           ├── controller.ts         # Your crud controller methods
│           ├── fixture.ts            # Object used for testing (can ignore)
│           ├── formatter.ts          # Formats your db models to your controller/gql models
│           ├── resolver.ts           # Your resolver
│           ├── schema.ts             # Your gql schemas (and potentially typscript interfaces associated to the schemas)
│           └── service.ts            # Business logic of your app

Build and start server for production

  • Run npm start

Technologies used

  • NodeJS and TypeScript
  • GraphQL with Apollo Server
  • MongoDB Database integrated with Mongoose

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