server.py

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()

# 定义一个数据模型，用于POST请求的参数
class ProcessRequest(BaseModel):
    text: str
    method: str

# GET请求接口
@app.get("/hello")
async def say_hello():
    return {"message": "Hello, World!"}

# POST请求接口
@app.post("/process")
async def process_text(request: ProcessRequest):
    if request.method == 1:
        processed_text = request.text.upper()
    elif request.method == 2:
        processed_text = request.text.lower()
    elif request.method == 3:
        processed_text = request.text[::-1]  # 反转字符串
    else:
        processed_text = request.text

    return {"original_text": request.text, "processed_text": processed_text, "method": request.method}

print("fastapi done")