GRAPHQL API

GraphQL API

Build flexible, type-safe GraphQL APIs with Apollo Server.

Quick Start

import { ApolloServer } from '@apollo/server';
import { startStandaloneServer } from '@apollo/server/standalone';

const typeDefs = `#graphql
  type Query {
    hello: String
  }`;

const resolvers = { Query: { hello: () => 'Hello world' } };

const server = new ApolloServer({ typeDefs, resolvers });
const { url } = await startStandaloneServer(server, { listen: { port: 4000 } });
console.log(`Server ready at ${url}`);

When to Use

• ✅ Flexible APIs with custom queries
• ✅ Multiple data sources (REST, DB, gRPC)
• ❌ Not for simple CRUD (better REST)

Step-by-Step Instructions

1. Install: npm install @apollo/server graphql
2. Define schema with typeDefs
3. Write resolvers
4. Run: npx ts-node index.ts

Dependencies

npm install @apollo/server graphql

Examples

Input: { users { id name } } → Output: JSON with user data

Resources

• Apollo Server Docs
• Examples

Validation

1. Server starts on port 4000
2. GraphQL Playground accessible
3. Queries return expected data

Source: ssrjkk/claude-skills — distributed by TomeVault.