Djangoでネストされたリストを抽出し、値を置換する

Question

あなたが提供できる援助を前もってありがとうございます。

私はDjango Rest FrameworkとVue.jsを使用してアプリケーションを構築しています。私はSpotify APIを消費しているだけでなく、DRFからデータを提供しています。

def get(self, request, *args, **kwargs): 
    artist = services.spot_artist_search(self.kwargs['artist']) 
    return Response(artist) 

私はSpotifyのAPIからアーティスト検索を正確に返します。結果は次のようになります。（私は簡潔にするために最初の2つのエントリを示しています）私はこの応答を繰り返し処理されませんし、「画像」、ネストされたリストの最初のエントリを抽出したいと思い何

{ 
"artists": { 
    "href": "https://api.spotify.com/v1/search?query=adele&type=artist&offset=0&limit=10", 
    "items": [ 
     { 
      "external_urls": { 
       "spotify": "https://open.spotify.com/artist/4dpARuHxo51G3z768sgnrY" 
      }, 
      "followers": { 
       "href": null, 
       "total": 6175115 
      }, 
      "genres": [ 
       "dance pop", 
       "pop" 
      ], 
      "href": "https://api.spotify.com/v1/artists/4dpARuHxo51G3z768sgnrY", 
      "id": "4dpARuHxo51G3z768sgnrY", 
      "images": [ 
       { 
        "height": 1000, 
        "url": "https://i.scdn.co/image/ccbe7b4fef679f821988c78dbd4734471834e3d9", 
        "width": 1000 
       }, 
       { 
        "height": 640, 
        "url": "https://i.scdn.co/image/f8737f6fda048b45efe91f81c2bda2b601ae689c", 
        "width": 640 
       }, 
       { 
        "height": 200, 
        "url": "https://i.scdn.co/image/df070ad127f62d682596e515ac69d5bef56e0897", 
        "width": 200 
       }, 
       { 
        "height": 64, 
        "url": "https://i.scdn.co/image/cbbdfb209cc38b2999b1882f42ee642555316313", 
        "width": 64 
       } 
      ], 
      "name": "Adele", 
      "popularity": 85, 
      "type": "artist", 
      "uri": "spotify:artist:4dpARuHxo51G3z768sgnrY" 
     }, 
     { 
      "external_urls": { 
       "spotify": "https://open.spotify.com/artist/19RHMn8FFkEFmhPwyDW2ZC" 
      }, 
      "followers": { 
       "href": null, 
       "total": 3504 
      }, 
      "genres": [], 
      "href": "https://api.spotify.com/v1/artists/19RHMn8FFkEFmhPwyDW2ZC", 
      "id": "19RHMn8FFkEFmhPwyDW2ZC", 
      "images": [], 
      "name": "Robyn Adele Anderson", 
      "popularity": 42, 
      "type": "artist", 
      "uri": "spotify:artist:19RHMn8FFkEFmhPwyDW2ZC" 
     }, 
     { 
      "external_urls": { 
       "spotify": "https://open.spotify.com/artist/5yUp79jSBSGdkbufl2hmcY" 
      }, 
      "followers": { 
       "href": null, 
       "total": 477 
      }, 
      "genres": [ 
       "violin" 
      ], 
      "href": "https://api.spotify.com/v1/artists/5yUp79jSBSGdkbufl2hmcY", 
      "id": "5yUp79jSBSGdkbufl2hmcY", 
      "images": [ 
       { 
        "height": 636, 
        "url": "https://i.scdn.co/image/581e634f260b77c93c61266bc6f8f755c2417a67", 
        "width": 640 
       }, 
       { 
        "height": 298, 
        "url": "https://i.scdn.co/image/01aa0f1316ac6cc2f03306aaf851f32b20f50175", 
        "width": 300 
       }, 
       { 
        "height": 64, 
        "url": "https://i.scdn.co/image/2051799990aa97da74524fdf9757e499cc51569b", 
        "width": 64 
       } 
      ], 
      "name": "Adele Anthony", 
      "popularity": 34, 
      "type": "artist", 
      "uri": "spotify:artist:5yUp79jSBSGdkbufl2hmcY" 
     }, 

ネストされたリストを最初の1つのエントリだけに置き換えます。最後のJSONは次のようになります：

{ 
"artists": { 
    "href": "https://api.spotify.com/v1/search?query=adele&type=artist&offset=0&limit=10", 
    "items": [ 
     { 
      "external_urls": { 
       "spotify": "https://open.spotify.com/artist/4dpARuHxo51G3z768sgnrY" 
      }, 
      "followers": { 
       "href": null, 
       "total": 6175115 
      }, 
      "genres": [ 
       "dance pop", 
       "pop" 
      ], 
      "href": "https://api.spotify.com/v1/artists/4dpARuHxo51G3z768sgnrY", 
      "id": "4dpARuHxo51G3z768sgnrY", 
      "images": [ 
       { 
        "height": 1000, 
        "url": "https://i.scdn.co/image/ccbe7b4fef679f821988c78dbd4734471834e3d9", 
        "width": 1000 
       }, 

      ], 
      "name": "Adele", 
      "popularity": 85, 
      "type": "artist", 
      "uri": "spotify:artist:4dpARuHxo51G3z768sgnrY" 
     }, 
     { 
      "external_urls": { 
       "spotify": "https://open.spotify.com/artist/19RHMn8FFkEFmhPwyDW2ZC" 
      }, 
      "followers": { 
       "href": null, 
       "total": 3504 
      }, 
      "genres": [], 
      "href": "https://api.spotify.com/v1/artists/19RHMn8FFkEFmhPwyDW2ZC", 
      "id": "19RHMn8FFkEFmhPwyDW2ZC", 
      "images": [], 
      "name": "Robyn Adele Anderson", 
      "popularity": 42, 
      "type": "artist", 
      "uri": "spotify:artist:19RHMn8FFkEFmhPwyDW2ZC" 
     }, 
     { 
      "external_urls": { 
       "spotify": "https://open.spotify.com/artist/5yUp79jSBSGdkbufl2hmcY" 
      }, 
      "followers": { 
       "href": null, 
       "total": 477 
      }, 
      "genres": [ 
       "violin" 
      ], 
      "href": "https://api.spotify.com/v1/artists/5yUp79jSBSGdkbufl2hmcY", 
      "id": "5yUp79jSBSGdkbufl2hmcY", 
      "images": [ 
       { 
        "height": 636, 
        "url": "https://i.scdn.co/image/581e634f260b77c93c61266bc6f8f755c2417a67", 
        "width": 640 
       }, 
      ], 
      "name": "Adele Anthony", 
      "popularity": 34, 
      "type": "artist", 
      "uri": "spotify:artist:5yUp79jSBSGdkbufl2hmcY" 
     }, 

どうすればよいでしょうか？また、すべての結果が1を返すわけではないので、ネストされたリストに画像があるかどうかを確認する必要があります。

Answer 1

[OK]を、これが機能するかどうかを確認し、次の

# result = <api call> 
for i in result["artists"]["items"]: 
    if "images" in i and i["images"]: 
     i["images"] = [i["images"][0]] 

print result 

を使用してみてください。