Gmail is not a very good code editor. Did you find the bug? ;)
On Tue, Feb 12, 2013 at 2:01 PM, Isaac Schlueter <i...@izs.me> wrote:
> ```javascript
> // request-queue.js
> // usage:
> // var q = require('./request-queue.js')
> // q.add('http://google.com/', googleCallback);
> // q.add('http://facebook.com/', facebookCallback);
> // q.run(allRequestsDoneCallback);
>
> exports.add = addRequest;
> exports.run = run;
>
> var queue = [];
>
> // call the cb when THIS url is done
> function addRequest(url, cb) {
> queue.push([url, cb]);
> }
>
> // call the cb when ALL requests are done
> function run(cb) {
> var next = queue.shift();
> if (!next) {
> if (cb) cb();
> return;
> }
> var url = next[0];
> var reqCb = next[1];
makeRequest(url, function(er, body) {
if (er) {
if (reqCb) reqCb(er);
if (cb) cb(er);
return;
}
if (reqCb) reqCb(null, body);
run(cb);
});
> }
>
> function makeRequest(url, cb) {
> var body = '';
> http.get(url, function(res) {
> // could also do other custom logic in here.
> // for this example, we just buffer the whole body
> // you may want to sniff the responseCode, or stream
> // the body to the caller, etc.
> res.setEncoding('utf8');
> res.on('data', function(c) {
> body += c;
> });
> res.on('end', function() {
> cb(null, body);
> });
> res.on('error', cb);
> });
> }
> ```
>
>
>
> On Tue, Feb 12, 2013 at 4:15 AM, asynqronic <c...@asynqronic.com> wrote:
>>
>>
>> On Tuesday, February 12, 2013 6:18:19 PM UTC+7, vikram patil wrote:
>>>
>>> Thanks but its not known how many requests I am going to make ... e.g. if
>>> code reads a file will multiple http request it may or may not pipeline
>>> results based on
>>> configuration specified in that file. So my implementation is around
>>> synchronous http requests and it analyzes result structure using rules
>>> specified for that
>>> request and then use result to update input param for next request.
>>>
>>
>> Your problem can be easily solved by making asynchronous requests in
>> recursive manner as greelgorke wrote before. But if you insist on
>> synchronous syntax you can use synchronize.js library to convert
>> asynchronous requests to synchronous.
>>
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