控制台日志显示消息但文件中没有任何内容

Question

I'm trying to save output to a file. I can see the error message from server in console.log (see bellow) but for some reason it's not written in file. The file is empty. Any ideas?

const fileName = `response ${data.item.name}.json`; // create file from response of each request 
const content = data.response.stream.toString(); // content of response   
console.log("JSON response: ", content);


fs.writeFile(fileName, content, function(error) { // The file itself
  if (error) {
    console.error(error);
  }
});

What I see in console log: I need that "JSON response" be in file

→ Create pce_test
  POST http://<<server>>:<<port>>/apiv2/servers  JSON response:  Error creating Integration Server: server name in use
[409 Conflict, 886B, 82ms]

Answer 1

The content has to be in the JSON format, if you want to write a JSON file.

const content = `{"key": "${data.response.stream.toString()}"}`; // content of response

If you want to write the object properties in a new line with a tab, you can use something like below;

const content = JSON.stringify(`{\n \t "key": "${data.response.stream.toString()}"\n}`); 
fs.writeFile(fileName, JSON.parse(content), (error) => { // The file itself
  if (error) {
    console.error(error);
  }
});