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GraphQL Starter Kit

$39

GraphQL server setup with schema design, resolvers, authentication, dataloader patterns, and subscription support.

📁 36 files

JSONMarkdownShellPythonFastAPI

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📁 File Structure 36 files

graphql-starter-kit/ ├── LICENSE ├── README.md ├── examples/ │ ├── curl-examples.sh │ ├── queries.graphql │ └── variables.json ├── free-sample.zip ├── guide/ │ ├── auth-and-context.md │ ├── n+1-and-dataloader.md │ ├── resolver-patterns.md │ └── schema-design.md ├── guides/ │ ├── auth-and-context.md │ ├── n+1-and-dataloader.md │ ├── resolver-patterns.md │ └── schema-design.md ├── index.html ├── schema/ │ └── schema.graphql ├── src/ │ ├── __init__.py │ ├── __main__.py │ ├── __pycache__/ │ │ ├── __init__.cpython-312.pyc │ │ ├── __main__.cpython-312.pyc │ │ ├── auth.cpython-312.pyc │ │ ├── dataloader.cpython-312.pyc │ │ ├── executor.cpython-312.pyc │ │ ├── resolvers.cpython-312.pyc │ │ ├── schema_parser.cpython-312.pyc │ │ ├── server.cpython-312.pyc │ │ └── subscriptions.cpython-312.pyc │ ├── auth.py │ ├── dataloader.py │ ├── executor.py │ ├── resolvers.py │ ├── schema_parser.py │ ├── server.py │ └── subscriptions.py └── tests/ ├── test_dataloader.py └── test_resolvers.py

📖 Documentation Preview README excerpt

GraphQL Starter Kit

A complete, runnable GraphQL server built with Python's standard library (zero pip dependencies). Includes a realistic blog + commerce schema, resolvers with authentication, the DataLoader pattern for N+1 elimination, and subscription support via Server-Sent Events.

What's Inside


graphql-starter-kit/
├── schema/
│   └── schema.graphql       # Full SDL: types, queries, mutations, subscriptions
├── src/
│   ├── __init__.py           # Package marker
│   ├── __main__.py           # Entry point: python -m src
│   ├── server.py             # HTTP server with GraphiQL, CORS, SSE
│   ├── schema_parser.py      # SDL + query parser (recursive-descent)
│   ├── executor.py           # Query execution engine
│   ├── resolvers.py          # Business logic + in-memory data store
│   ├── dataloader.py         # Batching + caching DataLoader
│   ├── auth.py               # JWT creation/verification, RBAC decorators
│   └── subscriptions.py      # PubSub broker + SSE transport
├── examples/
│   ├── queries.graphql       # 10 example operations
│   ├── curl-examples.sh      # Ready-to-run curl commands
│   └── variables.json        # Variable payloads for parameterized queries
├── guides/
│   ├── schema-design.md      # Schema design principles and patterns
│   ├── resolver-patterns.md  # 8 resolver patterns with code
│   ├── n+1-and-dataloader.md # DataLoader deep dive
│   └── auth-and-context.md   # Authentication architecture guide
├── tests/
│   ├── test_dataloader.py    # 13 DataLoader unit tests
│   └── test_resolvers.py     # 15 resolver unit tests
├── README.md
└── LICENSE                   # MIT

Features

Zero dependencies — runs on Python 3.10+ stdlib only (no pip install needed)
Full GraphQL schema — 15+ types, enums, interfaces, input types, pagination
Working server — boots on http://127.0.0.1:4000 with embedded GraphiQL IDE
Authentication — HMAC-SHA256 JWT, role-based access control decorators
DataLoader — batching + caching pattern with performance metrics
Subscriptions — real-time events via Server-Sent Events (SSE)
In-memory data — realistic sample data (users, posts, comments, products, orders)
28 resolver tests — comprehensive test coverage with stdlib unittest

Quick Start

1. Start the Server


cd graphql-starter-kit
python -m src

Output:


GraphQL server running at http://127.0.0.1:4000/graphql
GraphiQL IDE at http://127.0.0.1:4000/

*... continues with setup instructions, usage examples, and more.*

📄 Code Sample .sh preview

examples/curl-examples.sh#!/usr/bin/env bash # ============================================================================= # curl Examples for the GraphQL Starter Kit Server # ============================================================================= # Prerequisites: Server running at http://127.0.0.1:4000 # cd graphql-starter-kit && python -m src # # Each example below is a self-contained curl command you can copy-paste. # Variables are passed inline via the "variables" JSON key. set -euo pipefail SERVER="http://127.0.0.1:4000/graphql" echo "=== 1. Health Check ===" curl -s http://127.0.0.1:4000/health | python3 -m json.tool echo echo "=== 2. List Published Posts ===" curl -s -X POST "$SERVER" \ -H "Content-Type: application/json" \ -d '{ "query": "query { posts(status: PUBLISHED, first: 5) { edges { node { id title slug readingTimeMinutes author { displayName } likeCount } cursor } pageInfo { hasNextPage endCursor } totalCount } }" }' | python3 -m json.tool echo echo "=== 3. Fetch Post by Slug ===" curl -s -X POST "$SERVER" \ -H "Content-Type: application/json" \ -d '{ "query": "query { postBySlug(slug: \"getting-started-with-graphql\") { id title body author { displayName email } comments(first: 5) { edges { node { body author { displayName } } } totalCount } } }" }' | python3 -m json.tool echo echo "=== 4. Search ===" curl -s -X POST "$SERVER" \ -H "Content-Type: application/json" \ -d '{ "query": "query { search(query: \"graphql\", first: 3) { __typename ... on Post { id title } ... on Product { id name price } } }" }' | python3 -m json.tool

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