使用 FastAPI 时，HTTPException 始终返回 200 [OK]

Question

也许我像往常一样错过了一些东西

from fastapi import FastAPI, status, HTTPException

@app.delete("/posts/{id}")
def delete_post(id: int):
    try:
        with psycopg.connect("host=localhost dbname=fastapi user=postgres password=postgres") as conn:
            with conn.cursor() as cur:
                deleted_post = cur.execute("DELETE FROM posts WHERE id =  %s RETURNING *", [id]).fetchone()
                conn.commit()
                
                if deleted_post == None:
                    raise HTTPException(
                        status_code=status.HTTP_404_NOT_FOUND,
                        detail=f"Post with id: {id} was not found."
                    )
                
                return {"message": deleted_post}

当我尝试删除或更新不存在的 id 时，它会识别：“if returned_post == None:”，但它总是返回状态 200 OK

Answer 1

您将所有代码都放在

try

块中，但没有显示

expect

块。我的猜测是，异常在您的

expect

块中以任意 JSON 形式返回，这就是状态代码不起作用的原因。