HttpWebRequest

I feel stupid for asking...

Is there any way to do a "phased POST" on an HttpWebRequest?

In my code below
Without opening another connection
can the Dim newStream As Stream = sendWebRequest.GetRequestStream() be done in pieces?

Here's my code that works.
Dim sendWebRequest As HttpWebRequest = CType(WebRequest.Create(stUrl), HttpWebRequest)

'Following items 
 sendWebRequest.SendChunked = True
sendWebRequest.Method = "POST"
sendWebRequest.ContentType = "text/plain"
sendWebRequest.KeepAlive = True
sendWebRequest.UserAgent = "CometTest"
sendWebRequest.ServicePoint.ConnectionLimit = 20
sendWebRequest.Timeout = 43200


Dim encodedData As New ASCIIEncoding()
Dim byteArray As Byte() = encodedData.GetBytes(sendRow)

sendWebRequest.ContentLength = byteArray.Length

Dim newStream As Stream = sendWebRequest.GetRequestStream()
newStream.Write(byteArray, 0, byteArray.Length)
newStream.Close()

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Larry Bristersr. DeveloperAsked:
Who is Participating?
 
lenordisteConnect With a Mentor Commented:
your scenario looks fine by the way:
send first 4
wait a bit
send next 4
etc.

there is some overhead for each POST of course, but you cannot reduce that overhead in any meaningful way. If you are looking for performance improvements you may consider using json or another lighter data format than XML.
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lenordisteCommented:
what is supposed to be a "phased POST" for you? if you are looking for the asynchronous way of handling this, here is a start:
http://msdn.microsoft.com/en-us/library/system.net.webrequest.getrequeststreamasync.aspx

if not, what are you trying to accomplish :) ?
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Larry Bristersr. DeveloperAuthor Commented:
I have a POST of XML I'm sending to the HttpWebRequest
It looks like
<command><id>1</id></command>
<command><id>2</id></command>
<command><id>3</id></command>
<command><id>4</id></command>
<command><id>5</id></command>
<command><id>6</id></command>
<command><id>7</id></command>
<command><id>8</id></command>

So I want to "Open a Post???"
send first 4
pause 1000 milli seconds with a sleep
send the other 4
Complete the post.

I THINK this is a dumb question...
Just not experienced enough with the POST part to know.
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David Johnson, CD, MVPOwnerCommented:
After you've done the first post would not the server then think that you've finished and not know what to do with the remaining posts?
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Larry Bristersr. DeveloperAuthor Commented:
ve3ofa

That's what I keep trying to say.

As I mentioned above..
This is not my area of expertise.

So that's why I'm asking if there is a "threaded" post
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lenordisteCommented:
the only thing that comes to mind is the http keep-alive which is turned on by default and allows http requests to reuse TCP connections. Codewise there's no really such thing as to "open a post". That being said, why don't you use more than one xml command in a single post?
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Larry Bristersr. DeveloperAuthor Commented:
lenordiste

Not sure that would work

In my list above I'm currently posting 4 at a time in separate threaded posts.

On the VENDOR end...
They only allow (x) numbers in the "waiting" status on the post at a time.

In any event...
How could I send more that one xml command at a time?
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Larry Bristersr. DeveloperAuthor Commented:
Thanks
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