HTTPSPOST使用python请求查询FastAPI

我正在尝试使用 FastAPI 为神经网络提供服务。

from fastapi import Depends, FastAPI
from pydantic import BaseModel
from typing import Dict

class iRequest(BaseModel):
    arg1: str
    arg2: str

class iResponse(BaseModel):
    pred: str
    probs: Dict[str, float]

@app.post("/predict", response_model=iResponse)
def predict(request: iRequest, model: Model = Depends(get_model)):
    pred, probs = model.predict(request.arg1, request.arg2)
    return iResponse(pred = pred, probs = probs)

手动站点 http://localhost:8000/docs#/default/predict_predict_post 工作正常并转换为以下 curl 命令：

curl -X POST "http://localhost:8000/predict" -H  "accept: application/json" -H  "Content-Type: application/json" -d "{"arg1":"I am the King","arg2":"You are not my King"}"

这也有效。当我尝试使用 python 请求查询 API 时：

import requests
data = {"arg1": "I am the King",
        "arg2": "You are not my King"}
r = requests.post("http://localhost:8000/predict", data=data)

我只收到“422 Unprocessable Entity”错误。我哪里出错了？

回答