Hi,

Andrew wrote:
A variation of the approach would be to search the database for a unique set of
tags that identify the relation.

Probably you cannot rely on a an unquie set of extact features but some sort of fuzzy match together with perhaps a location hint seems to be the best option for external links into OSM - not only relations, also ways or points ("a restaurant or similar amenity named 'la bella isola' or somesuch in the general vicinity of lat=..., lon=...). But it's not trivial to implement.

Bye
Frederik

--
Frederik Ramm  ##  eMail [email protected]  ##  N49°00'09" E008°23'33"

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