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from typing import List, Optional
from pydantic import BaseModel
from fastapi import FastAPI, HTTPException
import uvicorn
app = FastAPI()
#1. define the blueprint for APIs
class Customers(BaseModel):
id: int
name: str
email: str
phone: Optional[str] = None
address: Optional[str] = None
#2. create the APIs endpoint
customers_list = []
# create
@app.post("/customers", response_model=Customers)
def create_customer(customer: Customers):
customers_list.append(customer)
return customer
# read
@app.get("/customers", response_model=List[Customers])
def get_customers():
return customers_list
# update
@app.put("/customers/{id}", response_model=Customers)
def update_customer(id: int, customer: Customers):
for i, existing_customer in enumerate(customers_list):
if existing_customer.id == id:
customers_list[i] = customer
return customer
raise HTTPException(status_code=404, detail="Customer not found")
# delete
@app.delete("/customers/{id}", response_model=Customers)
def delete_customer(id: int):
for i, existing_customer in enumerate(customers_list):
if existing_customer.id == id:
deleted_customer = customers_list.pop(i)
return deleted_customer
raise HTTPException(status_code=404, detail="Customer not found")
#3. run the app
if __name__ == "__main__":
uvicorn.run(app, host="0.0.0.0", port=7860)
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