A loop of HTTPService

Hello there, a newbie here. I would like to know how do I
make a loop with httpservice calls inside. I have an array called
storyID, let's say:

storyID = [4542,2354,2354,1234,7653];

StoryID isn't always 5 elements long, it varies.



The httpservice call url is like:

h ttp://api.webservice.com/article/
storyID

where storyID is one of the elements of the named array.



So, I want to make a loop that goes through all the elements
of storyID array and make an httpservice call on each iteration
with the corresponding storyID.



Using the repeater isn't working for me. I think the only way
is to make the call in actionscript. Can anybody give an example,
please. Thank you.A loop of HTTPService
I don't know if that would be most efficient way of getting
data from remote server, but anyhow:



%26lt;HTTPService id=''s1'' result....

for each(var id:number in storyIds) {

s1.send(id);

}



is it possible to send all these stories at once and get the
data about all of them from the server in one request? if so, i
think that should be preferred way.



ATTAA loop of HTTPService
Here's how I did it:






private function getStoryDetailsXML():void{



for (var j:uint = 0; j %26lt; storyIDArray.length; j++){



var httpStoryDetails:HTTPService = new HTTPService();



httpStoryDetails.url = ''h
ttp://api.websercies.com/story/''+storyIDArray[j]+''?'';



httpStoryDetails.resultFormat = ''e4x'';



httpStoryDetails.addEventListener(''result'',
httpStoryDetailsHandler);



httpStoryDetails.addEventListener(''fault'',
httpFaultHandler);



httpStoryDetails.send();





function httpStoryDetailsHandler(event:Object):void{



trace(''j = '' + j);



myXML.story[j].@title =
httpStoryDetails[j].lastResult.story.title.text();

}



}



}





The problem with this is that by the time

httpStoryDetailsHandler
gets called, the value of

j
will already be equal to the length if the storyIDArray (5 in
this case). I need

httpStoryDetailsHandler
to be called for every value of

j
from 0 to 4. How do I go about this?
I think you are close. A few suggestions



1. Move the code to create the httpservice out of the loop.
All you are changing is the parameter. Better yet, create the
httpservice in mxml.

2. As atta707 suggested, just call that same httpservice with
a different parameter

3. in your result handler stuff the result into an array
collection or xmlcollection.

oh, and most importantly

4. Set the httpService mode to concurrent, since you are
going to be calling them essentially at the same time



Hope that helps.


Okay, finally got it working.
I couldn't use s1.send(id); because the api I'm
using requires the id to be part of the url itself, not as a
parameter. Example:

url=''h ttp://api.webservice.com/article/storyID?appkey=myApp''

and not:

url=''h
ttp://api.webservice.com/article?story=storyID,appkey=myApp''



I don't know whether it can be done with s1.send(id) format
or not, but if it can, I still don't know how to do it.

But anyway, I found a very
helpful
page on the livedocs.





With the example on the livedoc page as a guide, I managed to
come up with this:



%26lt;mx:HTTPService

id=''httpStoryDetails''

resultFormat=''e4x''

result=''httpStoryDetailsHandler(event);''

fault=''httpFaultHandler(event);''

showBusyCursor=''true''

/%26gt;





private function getStoryDetailsXML():void{

for (var j:uint = 0; j %26lt; storyIDArray.length; j++){

httpStoryDetails.url = ''h
ttp://api.webservice.com/article/''+storyIDArray[j]+''?appkey=myApp'';


var httpStoryDetailsCall:Object = httpStoryDetails.send();

httpStoryDetailsCall.marker = ''call''+j;

}

}





private function httpStoryDetailsHandler(event:Object):void{

var httpStoryDetailsCall:Object = event.token;

for (var j:uint = 0; j %26lt; storyIDArray.length; j++){

if (httpStoryDetailsCall.marker == (''call''+j)){

myXML.story[j].@title =
httpStoryDetails.lastResult.story.title.text();

}

}

}





That's all. I hope this helps other people encountering this
problem. And by the way, it's really hard to show readable code on
this forum. Adobe should do something about it.
I agree with the code formatting problem. I am sure they are
working on it.



Two points:

First, send returns an ''AsyncToken'' so it would be better to
write:

var httpStoryDetailsCall:AsyncToken = ...



Do this to send ''GET'' (the default method) variables in the
request object:

var oRequest:Object = {appkey:''myApp''};

var httpStoryDetailsCall:AsyncToken =
httpStoryDetails.send(oRequest);



You will still need to build the url dynamically, though, so
what you have is fine if you are happy with it.

Tracy