(Ruby) Getting the HTTP Response after an Asynchronous HTTP Request Completes

Some HTTP methods return an HTTP response object. This example demonstrates how to obtain the HTTP response object for such a method when calling asynchronously.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

#  All Chilkat classes can be unlocked at once at the beginning of a program
#  by calling UnlockBundle.  It requires a Bundle unlock code.
chilkatGlob = Chilkat::CkGlobal.new()
success = chilkatGlob.UnlockBundle("Anything for 30-day trial.")
if (success != true)
    print chilkatGlob.lastErrorText() + "\n";
    exit
end

http = Chilkat::CkHttp.new()

#  Call the async version of the QuickGetObj method to return a task object.
#  The task object is loaded, but is in the Inert state -- meaning it is
#  not yet scheduled to run on Chilkat's background thread pool.
# task is a CkTask
task = http.QuickGetObjAsync("https://stackexchange.com")
if (http.get_LastMethodSuccess() != true)
    print http.lastErrorText() + "\n";
    exit
end

#  Schedule the task for running on the thread pool.  This changes the task's state
#  from Inert to Live.
success = task.Run()
if (success != true)
    print task.lastErrorText() + "\n";

    exit
end

#  The application is now free to do anything else
#  while the HTML page is being downloaded.

#  For this example, we'll simply sleep and periodically
#  check to see if the QuickGetObjAsync if finished.
while task.get_Finished() != true

    #  Sleep 100 ms.
    task.SleepMs(100)

end

#  A finished task could be one that was canceled, aborted, or truly finished.

#  If the task was "canceled", it was canceled prior to actually starting.  This could
#  happen if the task was canceled while waiting in a thread pool queue to be scheduled by Chilkat's
#  background thread pool scheduler.

#  If the task was "aborted", it indicates that it was canceled while running in a background thread.
#  The ResultErrorText will likely indicate that the task was aborted.

#  If the task "completed", then it ran to completion, but the actual success/failure of the method
#  is determined by the result obtained via a GetResult* method.  (A "completed" task will
#  have a StatusInt equal to 7.   If the task finished, but was not completed, then it must've
#  been aborted or canceled:
if (task.get_StatusInt() != 7)
    print "Task did not complete." + "\n";
    print "task status: " + task.status() + "\n";

    exit
end

#  The synchronous call to QuickGetObj would return an HTTP response object.  To get this
#  response object for the async call, we instantiate a new/empty HTTP response object,
#  and then load it from the completed task.
resp = Chilkat::CkHttpResponse.new()

success = resp.LoadTaskResult(task)
if (success != true)
    print resp.lastErrorText() + "\n";

    exit
end

#  Now that we have the response, we can get all of the information:

print "status code: " + resp.get_StatusCode().to_s() + "\n";
print "response header: " + resp.header() + "\n";

#  ...