Hi everyone, I have what I think is a simple question concerning
making an asynchronous web request using the BeginGetRespons e /
EndGetResponse methods of httpWebRequest.
My app needs to fire off a bunch (possibly thousands) of http requests
at once. Each request calls a java servlet which places a telephone
call. I need to examine the stream returned and do a simple SQL
update to log the status of the call. Unfortunately the info returned
by the servlet is pretty minimal and doesn't include any information
other than success, busy, no_answer, etc..
What I need to be able to do is identify which call each status
message relates to. However, I can't quite figure out how to do this
=( Is the state object what I should be paying attention to here? Is
there a way to make the phone number available to the callback
delegate that is receiving the response stream?
For instance to initate the request:
----------
string URI = "http://xxx.xxxx.com/connect-Phone?phone_num ber=555-555-5555";
HttpWebRequest req = (HttpWebRequest ) WebRequest.Crea te(fullURI);
RequestState myRequestState = new RequestState(no tificationId);
myRequestState. request = req;
IAsyncResult result = (IAsyncResult) req.BeginGetRes ponse(new
AsyncCallback(R espCallback),my RequestState);
------------
How can I get the 555-555-5555 as a variable to use in my SQL queries
held within RespCallback?
Many many thanks for any help anyone can offer!
2  1534 
MT404,
Yes, it's the state object you need to use.
See this articles from MSDN to understand how it is done.
--
Sorin Dolha [MCP, MCAD, MCSD]
"mt404" <mt*******@hotm ail.com> wrote in message news:67******** *************** ***@posting.goo gle.com...
Hi everyone, I have what I think is a simple question concerning
making an asynchronous web request using the BeginGetRespons e /
EndGetResponse methods of httpWebRequest.
My app needs to fire off a bunch (possibly thousands) of http requests
at once. Each request calls a java servlet which places a telephone
call. I need to examine the stream returned and do a simple SQL
update to log the status of the call. Unfortunately the info returned
by the servlet is pretty minimal and doesn't include any information
other than success, busy, no_answer, etc..
What I need to be able to do is identify which call each status
message relates to. However, I can't quite figure out how to do this
=( Is the state object what I should be paying attention to here? Is
there a way to make the phone number available to the callback
delegate that is receiving the response stream?
For instance to initate the request:
----------
string URI = "http://xxx.xxxx.com/connect-Phone?phone_num ber=555-555-5555";
HttpWebRequest req = (HttpWebRequest ) WebRequest.Crea te(fullURI);
RequestState myRequestState = new RequestState(no tificationId);
myRequestState. request = req;
IAsyncResult result = (IAsyncResult) req.BeginGetRes ponse(new
AsyncCallback(R espCallback),my RequestState);
------------
How can I get the 555-555-5555 as a variable to use in my SQL queries
held within RespCallback?
Many many thanks for any help anyone can offer!
"Sorin Dolha [MCSD]" <sd****@hotmail .com> wrote in message news:<O4******* *******@TK2MSFT NGP09.phx.gbl>. .. MT404,
Yes, it's the state object you need to use.
See this articles from MSDN to understand how it is done.
Sorin,
I was able to get things working exaclty how I was hoping by creating
a class which I passed the data I needed to access in the callback
delegate to. I then used an instance of this class as the state
object for the async web request, and voila, I had everything working
exactly as I was hoping.
Thanks for confirming that I was barking up the right tree.
-Matt This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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