[英]Meteor HTTP.get error handling
我正在嘗試使用Future在一組URL上執行HTTP.get。
流星版本: 0.8.3 平台: Windows Server 2012
代碼有點像這樣:
var futures = _.map(test, function(url) {
var future = new Future();
var onComplete = future.resolver();
try{
// Make async http call
var httpGet = HTTP.get(url,{followRedirects: true},function(error, result) {
if(error)
{
apiLogger.error("%s is error",error);
onComplete(error, null);
}
else
{
if(result!=null){
//operations done here
onComplete(error, JSON.stringify(object1));
}
else {
apiLogger.error('%s - User encountered an error. URL not parsed: %s',user,url);
onComplete(error, null);
}
}
});
}
catch(e)
{
apiLogger.error('%s - URsarsed: %s - %s',user,url,result.statusCode);
onComplete(error, null);
}
return future;
});
我面臨的問題是錯誤的錯誤處理。
在某些網址上出現以下錯誤:
I20140904-17:57:38.609(-4)? Exception while invoking method 'parallelAsyncJob' E
rror: failed [404] <html><head><title>Apache Tomcat/7.0.12 - Error report</title
><style><!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color
:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;ba
ckground-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;
color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,A
rial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial
,sans-serif;color:white;background-colo...
I20140904-17:57:38.617(-4)? at packages/underscore/underscore.js:255
I20140904-17:57:38.619(-4)? at Array.map (native)
I20140904-17:57:38.621(-4)? at Function._.map._.collect (packages/underscore
/underscore.js:123)
I20140904-17:57:38.623(-4)? at Function._.invoke (packages/underscore/unders
core.js:254)
I20140904-17:57:38.626(-4)? at Meteor.methods.parallelAsyncJob (app/server/m
ethods.js:1:9355)
I20140904-17:57:38.628(-4)? at maybeAuditArgumentChecks (packages/livedata/l
ivedata_server.js:1488)
I20140904-17:57:38.631(-4)? at packages/livedata/livedata_server.js:650
I20140904-17:57:38.632(-4)? at _.extend.withValue (packages/meteor/dynamics_
nodejs.js:37)
I20140904-17:57:38.635(-4)? at packages/livedata/livedata_server.js:649
I20140904-17:57:38.644(-4)? at _.extend.withValue (packages/meteor/dynamics_
nodejs.js:37)
I20140904-17:57:38.646(-4)? - - - - -
I20140904-17:57:38.648(-4)? at makeErrorByStatus (packages/http/httpcall_com
mon.js:12)
I20140904-17:57:38.650(-4)? at Request._callback (packages/http/httpcall_ser
ver.js:99)
I20140904-17:57:38.652(-4)? at Request.self.callback (C:\Users\Administrator
\AppData\Local\.meteor\tools\edf8981bb6\lib\node_modules\request\request.js:122:
22)
I20140904-17:57:38.655(-4)? at Request.EventEmitter.emit (events.js:98:17)
I20140904-17:57:38.657(-4)? at Request.<anonymous> (C:\Users\Administrator\A
ppData\Local\.meteor\tools\edf8981bb6\lib\node_modules\request\request.js:888:14
)
I20140904-17:57:38.660(-4)? at Request.EventEmitter.emit (events.js:117:20)
I20140904-17:57:38.662(-4)? at IncomingMessage.<anonymous> (C:\Users\Adminis
trator\AppData\Local\.meteor\tools\edf8981bb6\lib\node_modules\request\request.j
s:839:12)
I20140904-17:57:38.665(-4)? at IncomingMessage.EventEmitter.emit (events.js:
117:20)
I20140904-17:57:38.668(-4)? at _stream_readable.js:920:16
I20140904-17:57:38.669(-4)? at process._tickCallback (node.js:415:13)
難道我做錯了什么? 還是一些GET問題?
更新:
我使用期貨是因為最終操作只能在獲取所有URL后才能執行。
有趣的是,我能夠通過瀏覽器甚至POSTMAN打開URL並獲得200狀態。 但是流星正在接收404。
根據您的錯誤消息,您將得到404錯誤代碼; 您的某些網址無效。 您自己說它僅在某些URL上發生。
在所有這些未來中,為什么您的代碼如此復雜? HTTP.get()
本身提供了asyncCallback
,並且您已經在代碼中使用了內聯回調,所以為什么不刪除所有期貨呢?
_.map(test, function(url) {
try {
// Make async http call
HTTP.get(url, {followRedirects: true}, function(error, result) {
if (error) {
if (result.statusCode == 404)
apiLogger.error('Error 404, URL not found: %s', url);
else
apiLogger.error('Error %s from %s for user %s',
result.statusCode, url, user);
return false;
} else {
if (result != null) {
// operations done here
} else {
apiLogger.error('Empty or invalid result returned from %s for user %s',
url, user);
}
return false;
}
});
} catch (error) {
return false;
}
});
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