存储来自Google JavaScript API请求的响应 [英] Storing a Response From a Google JavaScript API Request

问题描述

在使用Google+试用Google的Javascript API时，我遇到了一个障碍。

  var response; 
 var request = gapi.client.request（{
'path'：'/ plus / v1 / people /'+THEUSERID，
'params'：{}}）; 
 request.execute（function（resp）{}）; 
  

execute函数（gapi.client.HttpRequest.execute）一个回调函数。但是，我不希望在收到数据后立即处理数据，我想将它存储在代码开头声明的响应变量中。有没有办法使用回调参数存储响应？

原谅我，如果这有一个明显的解决方案，我是一个新的JavaScript。

编辑：
有人建议回调函数如下：

  request.execute（function（resp）{response = resp;}）; 
  

但是，这个函数很奇怪。这里是我用来测试的代码：

  var response; 
 var request = gapi.client.request（{
'path'：'/ plus / v1 / people /'+ userID，
'params'：{}}）; 
 request.execute（function（resp）{
 console.log（RESP：）; 
 console.log（resp）; 
 response = resp;}）; 
 console.log（RESPONSE：）; 
 console.log（response）; 
  

控制台输出的内容如下：

 回应：
 undefined 
 GET https://www.googleapis.com/plus/v1/people/104815258973759324455?key=XXXXXXX 
 RESP： 
（{theactualjsondatathatIreceivedfromthecall}）
  

显然，代码继续执行/ before /函数可以调用。我需要一个方法来检查这一点，所以在execute函数之后的代码不会被调用，直到回调函数运行。

解决方案

pre> request.execute（function（resp）{
response = resp;
afterExecute（）;
}
function afterExecute（）{
//这将不会触发，直到响应已设置。
}


While trying out Google's Javascript API with Google+, I ran across a snag.

var response;
var request = gapi.client.request({
    'path': '/plus/v1/people/' + "THEUSERID", 
    'params': {}});
request.execute(function(resp){});

The execute function (gapi.client.HttpRequest.execute) takes a single argument; a callback function. However, I do not wish to handle the data immediately after I receive it, I want to store it in the response variable I declared at the start of the code. Is there a way to use the callback argument to store the response?

Forgive me if this has an obvious solution, I'm a little new to JavaScript.

EDIT: It has been suggested that the callback function be as follows:

request.execute(function(resp){response = resp;});

However, something curious happens with the function. Here is the code I used to test:

var response;
var request = gapi.client.request({
    'path': '/plus/v1/people/' + userID,
    'params': {}});
request.execute(function(resp){
    console.log("RESP:");
    console.log(resp);
    response = resp;});
console.log("RESPONSE:");
console.log(response);

What the console outputs is as follows:

RESPONSE:
undefined
GET https://www.googleapis.com/plus/v1/people/104815258973759324455?key=XXXXXXX
RESP:
({theactualjsondatathatIreceivedfromthecall})

Apparently, the code continues executing /before/ the execute callback function can be called. I need a way to check for this, so that the code after the execute function is not called until the callback function is run.

解决方案

request.execute(function(resp){
  response = resp;
  afterExecute();
});
function afterExecute() {
  // this will not fire until after the response has been set.
}

这篇关于存储来自Google JavaScript API请求的响应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！