Learn FASTAPI-REST with Real Code Examples

Install via pip: `pip install fastapi[all]`

Install ASGI server like Uvicorn: `pip install uvicorn`

Create main app file: `main.py`

Define path operations and request models

Run server: `uvicorn main:app --reload`

Install Python 3.7+

Install FastAPI and Uvicorn

Create project structure

Define routes and models

Run server locally and test endpoints

main.py - main application entry

routers/ - route modules

models/ - Pydantic/ORM models

services/ - business logic and DB access

requirements.txt - dependencies

pip install fastapi[all] - install FastAPI

pip install uvicorn - install ASGI server

uvicorn main:app --reload - run server

pytest - run tests

pip freeze > requirements.txt - save dependencies

UTF-8 content supported by default

Locale handled in application logic

Messages externalized for translation

Integrate external i18n libraries if needed

Custom validation messages for different languages

APIs accessible via HTTP clients

CORS configuration supported

OpenAPI docs provide endpoint visibility

Ensure REST best practices

Test APIs with automated tools

Primarily JSON APIs; optional HTML templates

Interactive docs via Swagger or Redoc

Integrate front-end frameworks if needed

Static files served via Starlette StaticFiles

Custom templating via Jinja2 if necessary

Path operations handle request/response state

Shared state via dependencies

Middleware can read/write request state

Background tasks handle async operations

Database connections managed via dependency injection

Request/response validated via Pydantic

Database integration via SQLAlchemy/Tortoise

Connection pooling for performance

Cache for frequently accessed data

Logging of request lifecycle and errors