Category: python
Build a Python REST API with AWS API Gateway
Published on 15 Sep 2026
Explanation
FastAPI is a Python framework for building HTTP APIs.
Code:
from fastapi import FastAPI
app = FastAPI()
@app.get('/hello')
def hello():
return {'message': 'Hello from Python'}
Explanation
A GET endpoint retrieves data from a REST API.
Code:
@app.get('/users')
def get_users():
return [{'id': 1, 'name': 'Praveen'}]
Explanation
Pydantic models validate request data in FastAPI.
Code:
from pydantic import BaseModel
class User(BaseModel):
name: str
age: int
Explanation
API Gateway exposes an HTTP endpoint and routes requests to a Python backend or Lambda function.
Code:
architecture = {'client': 'Frontend', 'gateway': 'API Gateway', 'backend': 'Python API'}
print(architecture)
Explanation
Use HTTP status codes and safe error messages when a request cannot be processed.
Code:
from fastapi import HTTPException raise HTTPException(status_code=400, detail='Invalid request')