how to make multiple query by http package?

[Hans]

Hi,
I'm learning to use http package.

I already have a web service running on my server, now I need tcl http client to setup connection to server, then query server, get response, again and again, finally, close the connection.

The all examples I found from internet is one query per connection. From manual:
The ::http::geturl command blocks until the operation completes, unless the -command option specifies a callback that is invoked when the HTTP transaction completes.
I don't know what's the real meaning of "operation completes" or "transaction completes". per network sniffer, I noticed the command quit only after server side close the tcp connection.

what I want to do is something like:
::http::config -proxyhost 1.2.3.4 -proxyport 80 -useragent httppost
set token1 [::http::geturl $url -query $data1 -channel $out -keepalive 1 ]
set token2 [::http::geturl $url -query $data2 -channel $out -keepalive 1 ]
set token3 [::http::geturl $url -query $data3 -channel $out -keepalive 1 ]
set token4 [::http::geturl $url -query $data4 -channel $out -keepalive 1 ]
::http::reset token4 >>>>>>close tcp connection.

Can anybody give me an idea about how to do this? thanks a lot!

[Alexandre Ferrieux]

Recent versions of the http package (at least the one in 8.6 trunk)
have a -keepalive flag.
To force the close at the end, configure the last request without the
flag.

-Alex

[Hans]

Hi Alex,

Thanks for your response.

I already add -keepalive flag. I noticed it has "Connection: keep-alive" in http header. the problem now is "::http:geturl" does not return after it got transaction response, it only return until server side expire and close the connection. I guess I missed a flag but I don't know which one.

thanks again.

[Hans]

Hi, I found one stupid mistake in my code, now it works.
Thank you very much!