将变量插入数据请求字典 python

Question

我正在尝试使用 spotify API 构建一个简单的电唱机，我想将播放列表 ID 保存在变量中，以便将来更容易更改或添加

import json 
import requests

spotify_user_id = "...."
sgt_peppers_id = "6QaVfG1pHYl1z15ZxkvVDW"  

class GetSongs:
    def __init__(self):
        self.user_id=spotify_user_id
        self.spotify_token = ""
        self.sgt_peppers_id = sgt_peppers_id


    def find_songs(self):
        query = "https://api.spotify.com/v1/me/player/play?
        device_id=......"


        headers={"Content.Type": "application/json", "Authorization": "Bearer 
{}".format(self.spotify_token)}
        data= '{"context_uri":"spotify:album:6QaVfG1pHYl1z15ZxkvVDW"}'

        response = requests.put(query, headers=headers, data=data)

我希望能够像这样：数据='{"context_uri":f"spotify:专辑:{sgt_peppers_id}"}'

但遗憾的是它不起作用，所有其他将变量插入字符串的方法也不起作用。希望有人对此有答案。提前谢谢你！

Answer 1

Spotify API 期望请求 body 为 json，您目前正在手动构建。但是，您似乎使用了拼写错误的 header：Content.Type 而不是 Content-Type （点而不是破折号）.

幸运的是，python requests 库可以 encode python objects into json for you and add the Content-Type headers automatically. It can also add the parameters to the url 为您服务，因此您不必手动创建 ?query=string。

# We can add this to the string as a variable in the `json={...}` arg below
album_uri = "6QaVfG1pHYl1z15ZxkvVDW"

response = requests.put(
    "https://api.spotify.com/v1/me/player/play",  # url without the `?`
    params={"device_id": "..."},  # the params -- ?device_id=...
    headers={"Authorization": f"Bearer {self.spotify_token}"},
    json={"context_uri": f"spotify:album:{album_uri}"},
)

让请求库为您完成工作！

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