如何修复Node.js http发布请求或处理错误以更有效地进行调试？

Question

This example lacks some context, I know. But this request returns this error:

TypeError: Invalid data, chunk must be a string or buffer, not object

I think it is because of the of what is being based to the data field but I can't be sure. This api returns JSON, so I don't see the response as being the problem. What I am most concerned with is better error handling in Node. I could fix this a lot quicker if I knew exactly what the culprit was for the error. Any help would be appreciated!

Program.prototype.produceSomething = function(){
      const headers = {
        'Authorization': 'API_KEY',
        'Content-Type': 'application/json',
      }
      const options = {
          url: 'SOME_API',
          path: 'SOME_PATH',
          method: 'POST',
          data: 'dataString',
          headers: headers,
      };
      let body = "";
      return new Promise(function(resolve, reject){
        let request = https.request(options,
          function(response){
            response.on('data', function(data){
              body += data;
            })
            response.on('end', function(){
              body = JSON.stringify(body)
              resolve(body);
            })
          })
          request.on('error', function(err){
            reject(err)
          })
      })
    }

Answer 1

body += data

make sure data is string or buffer. You can cast to it if necessary.

For debugging, if you use alot of Promises, you can use the decorator pattern to log usefull things

Answer 2

Since options.data is a string try setting the Content-Type in the headers to text/html .

If you want the content-type to be application/json, try setting options.data to a json object.