Thanks. A useful option to know.
There's also -H "Accept-encoding: gzip". If you specify the output file
as *.gz it keeps the data compressed. I use it to convert the data to
garmin GPS format using mkgmap.
Do you have a link to the weeklyOSM article?
DaveF
On 01/11/2016 21:30, Adrian wrote:
I read in a recent weeklyOSM about prototype software for downloading OSM data
in PBF format from Overpass. This has prompted me to pass on a tip which may
not be widely known: It is possible to obtain about 10:1 compression now on any
OAPI or XAPI query by using HTTP compression. This is supported on the German
and French instances but not on the Russian instance. I use 'curl --compressed'
at the command line to invoke HTTP compression, e.g. (for an area of central
London)
XAPI query
curl --compressed -g -o data.osm
https://overpass-api.de/api/xapi_meta?*[bbox=-0.15,51.49,-0.1,51.52]
Equivalent OAPI query
curl --compressed -g -o data.osm
'https://overpass-api.de/api/interpreter?data=(node(51.49,-0.15,51.52,-0.1);%20<;node(w););out%20meta;'
This can greatly speed up the downloading of large datasets.
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