Javascript 为什么我的Meteor API调用引发异常？

我有以下代码（基于“”中的242页和243页）来尝试调用外部API：

流星法：

Meteor.methods({
  . . .
  'getTextAddrAsEmailAddr': function(phone) {
    this.unblock;
    var apiUrl = 'http://www.xminder.com/number.check.php?number=' + phone;
    var response = Meteor.wrapAsync(apiCall) (apiUrl);
    return response;
  }
});

“专用功能”：

我如何调用它（一个Meteor方法调用另一个）：

（Chrome）浏览器控制台输出：

reached addPerson.submit form
methods.js:29 insertPerson reached
methods.js:41 phone is 2624908739
debug.js:41 Exception in callback of async function Error: Cannot access the API [500]
    at apiCall (http://localhost:3000/app/both/methods.js?55690625ac0aa28550112db1c63d2b8912cc3410:30:19)
    at http://localhost:3000/packages/meteor.js?9730f4ff059088b3f7f14c0672d155218a1802d4:195:23
    at Meteor.methods.getTextAddrAsEmailAddr (http://localhost:3000/app/both/methods.js?55690625ac0aa28550112db1c63d2b8912cc3410:82:45)
    at http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:3911:25
    at _.extend.withValue (http://localhost:3000/packages/meteor.js?9730f4ff059088b3f7f14c0672d155218a1802d4:971:17)
    at _.extend.apply (http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:3902:54)
    at _.extend.call (http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:3780:17)
    at Meteor.methods.insertPerson (http://localhost:3000/app/both/methods.js?55690625ac0aa28550112db1c63d2b8912cc3410:52:38)
    at http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:3911:25
    at _.extend.withValue (http://localhost:3000/packages/meteor.js?9730f4ff059088b3f7f14c0672d155218a1802d4:971:17)
methods.js:50 textAddrAsEmailAddr is undefined
methods.js:51 undefined
methods.js:53 textAddrAsEmailAddr is undefined

命令提示符输出：

I20151024-07:23:43.999(-7)? insertPerson reached
I20151024-07:23:44.021(-7)? phone is 2624908739
I20151024-07:23:44.641(-7)? textAddrAsEmailAddr is undefined
I20151024-07:23:44.649(-7)? null
I20151024-07:23:44.649(-7)? textAddrAsEmailAddr is undefined

结果是，我的专用函数的catch块被击中了。为什么？我可以直接在浏览器中输入ApiUrl（），并得到以下结果：

{"success":true,"data":{"number":"2624908739","status":"YES","carrier_name":"ATT Mobility","carrier_id":"","sms_address":"2624908739@txt.att.net","mms_address":"2624908739@mms.att.net"}}

我想要sms_地址值，特别是；为什么访问此响应的尝试失败

更新 我将代码更改为：

var apiCall = function (apiUrl, callback) {
  try {
    var response = HTTP.get(apiUrl).data;
    callback(null, response);
  }
  // catch (error) {
  //   if (error.response) {
  //     var errorCode = error.response.data.code;
  //     var errorMessage = error.response.data.message;
  //   }
  //   else {
  //     // var errorCode = 500;
  //     var errorCode = error.response.code;
  //     // var errorMessage = 'Cannot access the API';
  //     var errorMessage = error.response.message;
  //   }
  //   var myError = new Meteor.Error(errorCode, errorMessage);
  //   callback(myError, null);
  // }
  catch (error) { console.log(error) };
}

…并在命令提示符控制台中获得相同的结果：

I20151024-08:14:57.413(-7)? insertPerson reached
I20151024-08:14:57.434(-7)? phone is 2624908741
I20151024-08:14:58.248(-7)? textAddrAsEmailAddr is undefined
I20151024-08:14:58.255(-7)? null
I20151024-08:14:58.264(-7)? textAddrAsEmailAddr is undefined

I20151024-13:02:23.539(-7)? insertPerson reached
I20151024-13:02:23.563(-7)? phone is 2624908743
I20151024-13:02:24.399(-7)? textAddrAsEmailAddr is undefined
I20151024-13:02:24.409(-7)? null
I20151024-13:02:24.410(-7)? textAddrAsEmailAddr is undefined

=> Errors prevented startup:

   While processing files with ecmascript (for target os.windows.x86_32):
   server/methods.js:4:54: server/methods.js: Unexpected token (4:54)

=> Your application has errors. Waiting for file change.

…在浏览器控制台中：

reached addPerson.submit form
methods.js:25 insertPerson reached
methods.js:37 phone is 2624908741
methods.js:20 Error: Can't make a blocking HTTP call from the client; callback required.(…)
methods.js:46 textAddrAsEmailAddr is undefined
methods.js:47 undefined
methods.js:49 textAddrAsEmailAddr is undefined

reached addPerson.submit form

注意：我在将挡块更改为：

catch (error) {
  console.log(error)
  callback(error, null);
};

更新2 无论如何，尝试使用此特定API可能是一个失败的原因，因为在浏览器中测试假电话号码会：

{"success":false,"error":"Too many requests during last 24h"}

更新3 我将Meteor方法从\eath\文件夹移动到\server\文件夹，但显然没有什么用处。我在浏览器控制台中仅获得以下信息：

reached addPerson.submit form
methods.js:25 insertPerson reached
methods.js:37 phone is 2624908741
methods.js:20 Error: Can't make a blocking HTTP call from the client; callback required.(…)
methods.js:46 textAddrAsEmailAddr is undefined
methods.js:47 undefined
methods.js:49 textAddrAsEmailAddr is undefined

reached addPerson.submit form

…这（仍然/再次）在命令提示控制台中：

I20151024-08:14:57.413(-7)? insertPerson reached
I20151024-08:14:57.434(-7)? phone is 2624908741
I20151024-08:14:58.248(-7)? textAddrAsEmailAddr is undefined
I20151024-08:14:58.255(-7)? null
I20151024-08:14:58.264(-7)? textAddrAsEmailAddr is undefined

I20151024-13:02:23.539(-7)? insertPerson reached
I20151024-13:02:23.563(-7)? phone is 2624908743
I20151024-13:02:24.399(-7)? textAddrAsEmailAddr is undefined
I20151024-13:02:24.409(-7)? null
I20151024-13:02:24.410(-7)? textAddrAsEmailAddr is undefined

=> Errors prevented startup:

   While processing files with ecmascript (for target os.windows.x86_32):
   server/methods.js:4:54: server/methods.js: Unexpected token (4:54)

=> Your application has errors. Waiting for file change.

…但Jeroen Peeter的代码与我的代码不同，我不知道如何将其合并到我现有的代码中；他说：

HTTP.get(apiUrl, function (error, data){
    console.log( 'http.get ::', error, data);
});

…我有：

var apiCall = function (apiUrl, callback) {
  try {
    var response = HTTP.get(apiUrl).data;
    callback(null, response);
  }
  catch (error) {
    if (error.response) {
      var errorCode = error.response.data.code;
      var errorMessage = error.response.data.message;
    }
    else {
      var errorCode = error.response.code;
      var errorMessage = error.response.message;
    }
    var myError = new Meteor.Error(errorCode, errorMessage);
    callback(myError, null);
  }

…那么他的代码在哪里与我的（非工作）代码相匹配

更新4 更改此项后：

var response = HTTP.get(apiUrl).data;

……为此：

var response = JSON.parse(HTTP.get(apiUrl).content;

…在命令提示符控制台中，我得到：

I20151024-08:14:57.413(-7)? insertPerson reached
I20151024-08:14:57.434(-7)? phone is 2624908741
I20151024-08:14:58.248(-7)? textAddrAsEmailAddr is undefined
I20151024-08:14:58.255(-7)? null
I20151024-08:14:58.264(-7)? textAddrAsEmailAddr is undefined

I20151024-13:02:23.539(-7)? insertPerson reached
I20151024-13:02:23.563(-7)? phone is 2624908743
I20151024-13:02:24.399(-7)? textAddrAsEmailAddr is undefined
I20151024-13:02:24.409(-7)? null
I20151024-13:02:24.410(-7)? textAddrAsEmailAddr is undefined

=> Errors prevented startup:

   While processing files with ecmascript (for target os.windows.x86_32):
   server/methods.js:4:54: server/methods.js: Unexpected token (4:54)

=> Your application has errors. Waiting for file change.

---

第4行，char 54是“content”中的最后一个“t”…？

似乎HTTP.get是从客户端而不是服务器上运行的。在这种情况下，无法阻止调用，因此会显示错误消息。您需要定义一个回调：

HTTP.get(apiUrl, function (error, data){
    console.log( 'http.get ::', error, data);
});

如果您不想在客户机上运行它（我认为您不想这样），那么您需要确保您的方法是在服务器上定义的。 将定义Meteor.methods的文件放在

server

文件夹中，或使用

if（Meteor.isServer）{…}

包装所有Meteor.methods，以确保这些方法仅在服务器上定义

if (Meteor.isServer) { 
    Meteor.methods({
    . . .
    'getTextAddrAsEmailAddr': function(phone) {
        this.unblock;
        var apiUrl = 'http://www.xminder.com/number.check.php?number=' + phone;
        var response = Meteor.wrapAsync(apiCall) (apiUrl);
        return response;
    }
});

---

使用Meteor.wrapAsync进行外部API调用的方式有问题

以下是我将如何做到这一点（在ECMAScript 2015中）

---

请确保将上面的所有代码都放在服务器文件夹中，或者用

if（Meteor.isServer）{…}

将错误记录在catch子句中。现在您自己将错误代码设置为500。我不知道实际的错误是什么。请记录错误并将其发布到此处。好的，我不知道具体如何操作，但将尝试将error.response.code分配给errorCode，将error.response.message分配给errorMessage。只需执行以下操作：…}捕获（错误）{console.log（错误）；…..，并用错误消息更新您的问题。好的，谢谢；我已将它从两者都移动到服务器，稍后将重试。请尝试

HTTP.get（apirl）.content

而不是

.data

.Node（和Meteor）使用内容类型标题确定数据类型。在本例中，内容类型为text/html，因此不会尝试将其解析为JSON，因此

.data

为空。如果您确定API始终返回JSON do

JSON.parse（HTTP.get（apirl）.Content）

Dude，你少了一个右括号！！你知道如何编写javascript吗？如果不知道，一定要先开始学习。另外，我给了你正确的一行括号，所以要更加努力地正确复制粘贴。我觉得这样做是在浪费大家的时间！我尝试了这些更改，但在f上仍然失败这一行的最后一个“t”：var response=JSON.parse（HTTP.get（apirl）.content；您不需要使用var response=JSON.parse（HTTP.get（apirl）.content；此外，上面的答案是让API调用工作所需的全部。解决方案对您有效吗？我已经在我的计算机上测试过，API调用工作正常不，我从来没有让它工作过，但对我来说这是一个没有意义的点，正如前面提到的，因为API在24小时内只接受这么多请求。不过，我相信你的话，它是有效的，并将其标记为正确答案。即使您超出了API的请求限制，它仍将返回某种类型的响应，指示API调用成功。