如何修复express.js（v 4.0.0）中的错误504：网关超时？

我正在开发一个express.js服务器，它向github api发出请求以获取webhooks中的用户存储库。的问题是，这种请求返回：如何修复express.js（v 4.0.0）中的错误504：网关超时？

problem with request: timed out 
[error] { [Error: 504: Gateway Timeout] 
[error] defaultMessage: 'Gateway Timeout', 
[error] message: '504: Gateway Timeout', 
[error] code: '504' }

我的代码：

服务：

exports.getWebHooks =函数getWebHooks（githubtoken，arrRepos）{

var promise = new Hope.Promise(); 

var arrReposDef = []; 

var github = new GitHubApi({ 
    version: "3.0.0", 
    debug: true, 
    protocol: "https", 
    host: "api.github.com", // should be api.github.com for GitHub 
    timeout: 5000, 
    headers: { 
     "user-agent": "Meanstack" // GitHub is happy with a unique user agent 
    } 
}); 


github.authenticate({ 
    type: "oauth", 
    token: githubtoken.token 
}); 


async.each(arrRepos, 

    function(item, callback){ 
     // It runs well 

     github.repos.getHooks({ 

      user: githubtoken.username, 
      repo: item.name, 

      headers: { 
       "X-GitHub-OTP": "two-factor-code" 
      } 

     }, function(err, res) { 
      if (err) { // it runs wrong 2 times, this the error that I defined up. 
       console.log(err); 
       githuberror = true; 

      } 

      else{ // it runs well 2 times 



       if(!res.length){ 

        arrReposDef.push(item); 


       } 

       else{ 
        var enc = false; 

        for(var i = 0; i< res.length; i++){ 
         if(res[i].config !== undefined && res[i].config !== null){ 
          if(res[i].config.url !== undefined && res[i].config.url !== null){ 



           if(res[i].config.url !== config.githubcallback){ 

            enc = true; 


           } 
          } 

         } 
        } 
        if(enc) { 


         arrReposDef.push(item); 


        } 


       } 



      } 
      callback(); //required 
     }); 
    }, 

    // 3rd param is the function to call when everything's done 
    function(err){ 

     if(err){ 
      console.log('Error:' + err); 
      return promise.done(err,null); 
     } 

     // All tasks are done now 
     else{ 

      return promise.done(null,arrReposDef); 


     } 
    } 
); 

return promise;

};

我知道应用程序流感谢CMD结果：

REQUEST: { host: 'api.github.com', 
    port: 443, 
    path: '/repos/1izpena/angularProject/hooks?access_token=secret', 
    method: 'get', 
    headers: 
    { host: 'api.github.com', 
    'content-length': '0', 
    'x-github-otp': 'two-factor-code', 
    'user-agent': 'Meanstack', 
    accept: 'application/vnd.github.v3+json' } } 
entro en webhooks, dentro del callback 
REQUEST: { host: 'api.github.com', 
    port: 443, 
    path: '/repos/1izpena/ionicProject/hooks?access_token=secret', 
    method: 'get', 
    headers: 
    { host: 'api.github.com', 
    'content-length': '0', 
    'x-github-otp': 'two-factor-code', 
    'user-agent': 'Meanstack', 
    accept: 'application/vnd.github.v3+json' } } 
entro en webhooks, dentro del callback 
REQUEST: { host: 'api.github.com', 
    port: 443, 
    path: '/repos/1izpena/ionicProjectDef/hooks?access_token=secret', 
    method: 'get', 
    headers: 
    { host: 'api.github.com', 
    'content-length': '0', 
    'x-github-otp': 'two-factor-code', 
    'user-agent': 'Meanstack', 
    accept: 'application/vnd.github.v3+json' } } 
entro en webhooks, dentro del callback 
REQUEST: { host: 'api.github.com', 
    port: 443, 
    path: '/repos/1izpena/RestAPI/hooks?access_token=secret', 
    method: 'get', 
    headers: 
    { host: 'api.github.com', 
    'content-length': '0', 
    'x-github-otp': 'two-factor-code', 
    'user-agent': 'Meanstack', 
    accept: 'application/vnd.github.v3+json' } } 
STATUS: 200 
HEADERS: {"server":"GitHub.com","date":"Fri, 15 Apr 2016 18:56:08 GMT","content-type":"application/json; charset=utf-8","content-length":"2","connection":"close","status":"200 OK"..."x-github-request-id":""} 
entro en webhooks, no hay errores 
entro en webhooks, en if 
STATUS: 200 
HEADERS: {"server":"GitHub.com","date":"Fri, 15 Apr 2016 18:56:08 GMT","content-type":"application/json; charset=utf-8","content-length":"2","connection":"close","status":"200 OK"...,"x-github-request-id":""} 
entro en webhooks, no hay errores 
entro en webhooks, en if 
problem with request: timed out 
[error] { [Error: 504: Gateway Timeout] 
[error] defaultMessage: 'Gateway Timeout', 
[error] message: '504: Gateway Timeout', 
[error] code: '504' } null 1izpena 
{ [Error: 504: Gateway Timeout] 
    defaultMessage: 'Gateway Timeout', 
    message: '504: Gateway Timeout', 
    code: '504' } 
problem with request: timed out 
[error] { [Error: 504: Gateway Timeout] 
[error] defaultMessage: 'Gateway Timeout', 
[error] message: '504: Gateway Timeout', 
[error] code: '504' } null 1izpena 
{ [Error: 504: Gateway Timeout] 
    defaultMessage: 'Gateway Timeout', 
    message: '504: Gateway Timeout', 
    code: '504' }

任何想法？非常感谢。

来源

2016-04-15 Izaskun Peña

-2

问题是您的API花费太长时间来响应。这很可能是由于代码中的错误，而不是由调用外部API引起的。可能你可以在这里分享一些代码，所以我们可以尝试找到问题。使用超时中间件只是标准化应用程序挂起以处理Web请求的情况。

在这里我更新您的Web请求处理程序，结束适当的响应。

exports.auth = function auth (request, response) { 
    var userid= request.params.userid; 
    var username = request.body.username; 
    var pass = request.body.pass; 

    var arrRepos = []; 
    var usertoken = ""; 

    if(userid !== undefined && userid !== null && 
      username !== undefined && username !== null){ 

     Auth(request, response).then(function(error, result) { 
      if (error) { 
       response.status(error.code).json({message: error.message}); 
       response.end(); 
       return; 
      } 

      if (userid !== result._id){ 
       response.status(401).json({message: 'Unauthorized. You are trying to access with a different userid'}); 
       response.end(); 
       return; 
      } 

      githubapiservice.getUserToken(userid, username).then(function (error,result){ 
       if(error){ 
        response.status(error.code).json({message: error.message}); 
        response.end(); 
        return; 
       } 

       var newResult = {}; 

       if(result == null){ 

        if(pass == undefined || pass == null || pass == ''){ 
         response.status(400).json({message: 'Bad Request. Missing required parameters'}); 
         response.end(); 
         return; 
        } 

        githubapiservice.createToken(userid,username,pass).then(function (error,result){ 
         if(error){ 
          var messageJSON= JSON.parse(error.message); 
          response.status(error.code).json({message: messageJSON.message}); 
          response.end(); 
          return; 
         } 

         if(result == null){ 
          response.json({message: "No se ha conseguido el token, intentelo de nuevo más tarde"}); 
          response.end(); 
          return; 
         } 

         usertoken = result; 

         githubapiservice.saveUserToken(userid, username, result).then(function (error,result){ 
          if(error){ 
           response.status(error.code).json({message: error.message}); 
           response.end(); 
           return; 
          } 

          if(result !== null){ 

           newResult.githubtoken = result; 

           githubapiservice.getRepositories(result).then(function (error,result){ 

            if(error){ 
             if(error.code == '504'){ 
              response.status(error.code).json({message: "Gateway Timeout"}); 
              response.end(); 
             } 
             else{ 
              var messageJSON= JSON.parse(error.message); 
              response.status(error.code).json({message: messageJSON.message}); 
              response.end(); 
             } 

             return; 
            } 

            if (result === undefined || result === null || result.length === 0){ 
             newResult.arrRepos = arrRepos; 
             response.json(newResult); 
             response.end(); 
             return; 
            } 

            newResult.arrRepos = result; 

            githubapiservice.getWebHooks(newResult.githubtoken, result).then(function (error,result) { 
             if (error) { 
              var messageJSON = JSON.parse(error.message); 
              response.status(error.code).json({message: messageJSON.message}); 
             } 
             else { 
              newResult.arrRepos = result; 
              response.json(newResult); 
             } 

             response.end(); 
            }); 
           }); 

           return; 
          } 

          response.status(422).json({message: "Validation Failed"}); 
          response.end(); 
         }); 

        }); /* end create token */ 
       } else { 
        newResult.githubtoken = result; 

        githubapiservice.getRepositories(newResult.githubtoken).then(function (error, result) { 

         if(error){ 
          var messageJSON= JSON.parse(error.message); 
          response.status(error.code).json({message: messageJSON.message}); 
          response.end(); 
          return; 
         } 

         if (result === undefined || result === null || result.length === 0){ 
          newResult.arrRepos = arrRepos; 
          response.json(newResult); 
          response.end(); 
          return; 
         } 

         githubapiservice.getWebHooks(newResult.githubtoken, result).then(function (error,result) { 
          if (error) { 


           var messageJSON = JSON.parse(error.message); 
           response.status(error.code).json({message: messageJSON.message}); 
           response.end(); 
           return; 
          } 


          newResult.arrRepos = result; 

          response.json(newResult); 
          response.end(); 

         }); 
        }); 
       } 
      }); /* end getUserToken */ 

     }); 
    } else { 
     response.status(400).json({message: 'Bad Request. Missing required parameters'}); 
     response.end(); 
    } 
};

来源

2016-04-15 16:02:42 yeiniel

好吧，代码很长，但现在我将它添加到答案中。 –

好吧，这两项服务是明确的，但我无法阅读您的Web处理程序。在您的Web处理程序中，我建议您在每次完成处理时（每次设置4xx状态）都结束响应并从函数返回以避免出现任何错误。 – yeiniel

是的，当它发生时，我会发送错误回复。我将削减控制器代码，使其更容易理解。 –

如何修复express.js（v 4.0.0）中的错误504：网关超时？

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