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14.7.21. Pingback API
The Pingback is another form of trackback, just protocol and parameters are different. In Pingback is used XML-RPC instead of REST model. Also the requester sends his own and target url as part of request.
The implementation consists of "pingback.ping" XML-RPC method and auto-discovery in blog home page.
"pingback.ping" (in sourceURI varchar, in targetURI varchar) return varchar
The sourceURI is URL for page of requester; targetURI is page on the target server. The pingback.ping method will retrieve sourceURI and will record the data as trackback it targetURI exists on same server and it's valid permaLink. On success it returns a string 'Success' otherwise XML-RPC error code.
![[Tip]](images/tip.png)
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