在REQUEST Node.js中返回JSON正文 [英] Return json body in REQUEST nodejs

问题描述

我正在使用request模块向URL发出HTTP GET请求，以获取JSON响应.

I'm using the request module to make an HTTP GET request to an url in order to get a JSON response.

但是，我的函数没有返回响应的主体.

However, my function is not returning the response's body.

有人可以帮我吗?

这是我的代码:

router.get('/:id', function(req, res) {
  var body= getJson(req.params.id);
  res.send(body);
});

这是我的getJson函数:

function getJson(myid){
  // Set the headers
  var headers = {
   'User-Agent':       'Super Agent/0.0.1',
   'Content-Type':     'application/x-www-form-urlencoded'
  }
  // Configure the request
  var options = {
    url: 'http://www.XXXXXX.com/api/get_product.php',
    method: 'GET',
    headers: headers,
    qs: {'id': myid}
  }

  // Start the request
  request(options, function (error, response, body) {
  if (!error && response.statusCode == 200) {
    return body;
  }
  else
    console.log(error);
  })
}

推荐答案

res.send(body); 

在getJson()函数返回之前会调用

.

is being called before your getJson() function returns.

您可以将回调传递给getJson:

You can either pass a callback to getJson:

getJson(req.params.id, function(data) {
    res.json(data);
});

...并且在getjson函数中:

...and in the getjson function:

function getJson(myid, callback){
// Set the headers
var headers = {
'User-Agent':       'Super Agent/0.0.1',
'Content-Type':     'application/x-www-form-urlencoded'
}
// Configure the request
var options = {
url: 'http://www.XXXXXX.com/api/get_product.php',
method: 'GET',
headers: headers,
qs: {'id': myid}
}

// Start the request
request(options, function (error, response, body) {
if (!error && response.statusCode == 200) {
    callback(body);
}
else
    console.log(error);
})  

}

或直接致电:

res.json(getJson(req.params.id));

这篇关于在REQUEST Node.js中返回JSON正文的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！