New Message: Note on SOAP/XML-RPC compatibility

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Address: http://frontier.userland.com/discuss/msgReader$8817

By: Dave Winer (dave at userland.com)

This morning I was testing the new Weblogs.Com interface, getting the SOAP interface to work. I tried setting things up as I did earlier with other bi-protocol apps, but it didn't work. On investigation, I found that on the server my SOAP request was (incorrectly) being routed through the XML-RPC server.

On further investigation, I found that a change in xml.rpc [1] on 7/23/01 was the source of the breakage. It used to be that when you made a SOAP call, the path was the same as the SOAPAction header. Now we have to specify the path separately. So I changed the data table (screen shot [2]) so that the path was the same as the SOAPAction, and it worked.

I want this note to be in the search engines so in the future when I want to test this stuff I don't spend an hour chasing down the problem. ";->"

[1] http://docserver.userland.com/xml/rpc
[2] http://www.scripting.com/images/2001/10/01/weblogUpdatesData.gif

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