[OSM-dev] Problem with XAPI and ref based search

[Grégory Bataille]

oh god. I must have missed some combination when I had this idea. so what
happens is that the data behind the dev OSM API seems partial. so when I
started with overpass to do a complex query, the then OSM base API did not
find the elements by id! the Prod API does though.
I don't think the XAPI layer can do a search by ID (at least I haven't
found one).

but not I can finally tie things together. Thanks for putting me back on
track!

Cheers


On Sat, Nov 30, 2013 at 8:26 AM, Grégory Bataille
<gbataille.dev at gmail.com>wrote:

> that's exactly what I had suspected at some point, but I did not make it
> work then either, let me retry that once I'm fully awaken and I'll get back
> to you. Thanks for the quick answer.
>
>
> On Sat, Nov 30, 2013 at 4:16 AM, Paul Norman <penorman at mac.com> wrote:
>
>> Ref is a reference to an object ID, not a ref tag. Instead of
>> /api/0.6/relation[ref=2202120] you want /api/0.6/relation/2202120.
>>
>>
>>
>> I’m not 100% sure if the overpass compatibility layer will correctly
>> handle the latter syntax.
>>
>>
>>
>> *From:* Grégory Bataille [mailto:gbataille.dev at gmail.com]
>> *Sent:* Friday, November 29, 2013 4:42 AM
>> *To:* dev at openstreetmap.org
>> *Subject:* [OSM-dev] Problem with XAPI and ref based search
>>
>>
>>
>> hello everybody,
>>
>>
>>
>> I have been trying to use OSM data for a while. basically, first, I'd
>> like to get the admin boundaries of France.
>>
>> I start by asking XAPI to give me the France admin_level 2 object like so:
>>
>>
>> http://www.overpass-api.de/api/xapi?relation[boundary=administrative][admin_level=2][name=France]
>>
>>
>>
>> this returns me the object, which contains among other things:
>>
>> <member type="relation" ref="79981" role="outer"></member>
>>
>> <member type="relation" ref="2202120" role="outer"></member>
>>
>> <member type="relation" ref="2627308" role="outer"></member>
>>
>> <member type="relation" ref="2177258" role="outer"></member>
>>
>>
>>
>> so I want to dig down into these relations of course to get to the
>> details (ways and nodes). But I can't:
>>
>> http://www.overpass-api.de/api/xapi?relation[ref=2202120] or
>>
>> http://www.overpass-api.de/api/xapi?*[ref=2202120]
>>
>> won't return anything. I have been spending a fair amount of time on this
>> and I can't figure it out.
>>
>>
>>
>> Would you please be able to point me in the right direction?
>>
>>
>>
>> thanks.
>>
>
>
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