如何将用户输入从节点服务器传递到外部 api 调用？

Posted 2023-02-19

【中文标题】如何将用户输入从节点服务器传递到外部 api 调用？

【英文标题】：How do I pass user input from a node server to an external api call?

【发布时间】：2020-02-17 09:54:37

【问题描述】：

我正在尝试 1) 从 React 表单中获取用户输入 2) 将其传递给 node.js 服务器 3) 然后传递给外部 API 搜索结果。 1 和 2 工作正常，但我无法弄清楚 #3。如何构造我的代码，以便我可以将用户输入/发布请求的结果传递给这个调用？

return spotifyApi.getArtistTopTracks('user input', 'US');

server.js

const server = express();
const router = express.Router();
const cors = require('cors');
const bodyParser = require('body-parser');
const logger = require('morgan');
const helmet = require('helmet');
const SpotifyWebApi = require('spotify-web-api-node');
const port = process.env.PORT || 5000;

server.use(logger('dev'));
server.use(cors());
server.use(bodyParser.urlencoded( extended: false ));
server.use(bodyParser.json());
server.use(helmet())
server.listen(port, () => console.log(`Listening on port $port`))
module.exports = server;

var urlencodedParser = bodyParser.urlencoded( extended: false )

server.get('/search', function (req, res) 
  res.send(query: req.query)
)

server.post('/search', urlencodedParser, function (req, res) 
  console.log(req.body)
  res.send(query: req.query)

)

  let credentials = 
      clientId: 'clientId',
      clientSecret: 'clientSecret',
      redirectUri: 'http://localhost:5000/callback'
  

  let spotifyApi = new SpotifyWebApi(credentials);

  spotifyApi.clientCredentialsGrant()
  .then(function(data) 
      console.log('The access token expires in ' + data.body['expires_in']);
      console.log('The access token is ' + data.body['access_token']);

    spotifyApi.setAccessToken(data.body['access_token']);

      return spotifyApi.getArtistTopTracks('4TMHGUX5WI7OOm53PqSDAT', 'US');
    )

    .then(function(data) 
      server.get('/tracks', (req, res) => 
          res.send(data.body);
      )
      console.log('The most popular tracks are:');
      let ids = data.body.tracks.map(track => track.id);
      console.log(ids)

      return spotifyApi.getAudioFeaturesForTracks(ids)
      .then(function(data) 

        server.get('/tracks/audio_features', (req, res) => 
            res.send(data.body);
        )
        console.log(data.body);
      , function(err) 
        done(err);
      )
    ),
    function(err) 
      console.log('Something went wrong!', err);
    ```

【问题讨论】：

你想从 spotifyApi.getArtistTopTracks api 获取曲目并在你的 server.post('/search' 路由中返回响应吗？

@SuleymanSah 我想接受用户输入，传递给 spotifyApi.getArtistTopTracks api 并返回响应。

在这里？ server.post('/search' 路由，你的搜索词的查询参数的名称是什么？

查询：req.query

请问一下？像这样结束： /?id=1234 ?

【参考方案1】：

你能试试这个例子并说出结果吗？

server.post("/search", urlencodedParser, async function(req, res) 
  console.log("body: ", req.body);
  console.log("query: ", req.query);

  try 
    let credentials = 
      clientId: "clientId",
      clientSecret: "clientSecret",
      redirectUri: "http://localhost:5000/callback"
    ;

    let spotifyApi = new SpotifyWebApi(credentials);

    const grandtObject = await spotifyApi.clientCredentialsGrant();

    spotifyApi.setAccessToken(grandtObject.body["access_token"]);

    const response = await spotifyApi.getArtistTopTracks(
      "4TMHGUX5WI7OOm53PqSDAT", // can be changed according to the req.query for example req.query.id
      "US"
    );

    console.log(response);

    res.send( tracks: response.body );
   catch (err) 
    console.log(err);
    res.status(500).send("something went bad");
  
);

【讨论】：

这并没有解决它，但你给我指出了正确的方向。我会尽快发布解决方案。谢谢！

@codermama 欢迎您，您至少可以尝试为答案投票