title: Examples Gallery
description: Runnable code examples demonstrating JustAPI features — the Rust-powered FastAPI alternative. From hello world to full e-commerce APIs.
keywords: [JustAPI examples, FastAPI alternative examples, Python API examples, Rust Python, JustAPI demo, API code examples]
Getting Started
| Example |
Description |
File |
| Hello World |
Basic GET and parameterized routes |
examples/01_hello_world.py |
| Path & Query Params |
URL parameters and query strings |
examples/02_path_query_params.py |
| Request Body |
JSON body validation with Pydantic |
examples/03_request_body.py |
Core Features
| Example |
Description |
File |
| Dependencies |
Dependency injection with Depends |
examples/04_dependencies.py |
| Middleware |
Request/response interception |
examples/05_middleware.py |
| Error Handling |
Custom exception handlers |
examples/06_error_handling.py |
| File Uploads |
Multipart form data |
examples/07_file_uploads.py |
| Routers |
Modular APIRouter |
examples/08_routers.py |
| DB Integration |
Database read/write |
examples/09_db_integration.py |
| WebSockets |
Real-time bidirectional comms |
examples/10_websockets.py |
Advanced
| Example |
Description |
File |
| Plugin System |
Custom plugin with caching |
examples/plugin_cache.py |
| Agent Demo |
MCP tools, sessions, streaming |
examples/agent_demo/app.py |
Full Application
The demo_shop is a complete e-commerce application with 23 endpoints:
- Catalog (categories, products, sellers)
- Customers (register, lookup)
- Cart (add, remove, checkout)
- Orders (create, list, status lifecycle)
- Reviews (CRUD, analytics)
All examples are in the examples/ directory of the repository.
See Also