So now you got me really confused.

The text beginning with Exception: System.InvalidOperationException: looks as if it is printed by the C# client, as Perl doesn't throw such an exception. The stack trace at the end also looks rather C#-ish to me. So who is composing the "error message" enclosed by the two -- strings, and from what input? You write I have added this line in the perl web service - but apparently the client embedded it into its "error message."

The string printed by print "\nContent-type : text/xml\n\n" useless for debugging, it is just a constant. If you send it to the client, then it breaks the HTTP response. You should at least do something like that:

print "HTTP/1.1 200 OK\n;
print "Content-type : text/plain\n\n";

[download]

...because after inserting these lines, the content type of the response is no longer valid XML, but can still be read as text.

You could, of course, also point a simple client like LWP's HEAD program to the service to check whether the response is well-formed.

In reply to Re^2: Perl web service consumed by c# client returns null. by haj
in thread Perl web service consumed by c# client returns null. by Anonymous Monk

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