esakkik / graphql-server-typed

Using typescript and gql-code-gen for easy graphql setup

graphql-server-typed

Create a fully configured, production ready graphql server, using

• typescript
• graphql-code-generator
• graphql-subscriptions
• merge-graphql-schemas
• Dependency injection with injection-js

This project demonstrates how to generate typescript types from graphql schema, using Graphql code generetor library.

Installation

Clone the repository and run npm install

git clone https://github.com/tomyitav/graphql-server-typed.git
npm install

Starting the server

npm run build:dev
npm start

The server will run on port 8080. You can change this by editing config file.

Type generation using gql codegen

npm run generate

This will automatically generate types in types.d.ts file! generate command is executed in every build

Project structure

We use the function makeExecutableSchema() from graphql-tools to to combine our types and resolvers. Instead of passing one large string for our schema, we split our types and resolvers to multiple files, located in graphql directory in types and resolvers directories. This way, we avoid schema complexity by using merge-graphql-schemas:

  import * as path from "path";
  import {makeExecutableSchema} from "graphql-tools";
  import {fileLoader, mergeTypes, mergeResolvers} from "merge-graphql-schemas";
  import {GraphQLSchema} from "graphql";

  const typesArray = fileLoader(path.join(__dirname, '../types'), { recursive: true });
  const resolversArray = fileLoader(path.join(__dirname, '../resolvers'));
  const allTypes = mergeTypes(typesArray);
  const allResolvers = mergeResolvers(resolversArray);
  let schema: GraphQLSchema;
  schema= makeExecutableSchema({
      typeDefs: allTypes,
      resolvers: allResolvers
  });

  export default schema;

So as your project grows - you can extend the schema by adding new type in types directory, and adding matching resolver file in resolvers directory. The schema is updated automatically.

Run server in production with Docker

npm run build

After npm building the project, go to project root directory, open shell and run:

docker build -t graphql-server .

Instructions about running the container are available here

Connect to the server from client app

See the following example on how to connect to the server using apollo-angular.