Javier,
According to https://httpwg.org/specs/rfc7233.html#header.range , HTTP
Range requests only apply to GET requests. So COGs delivered through
POST can indeed only be usable after full download.
BTW, someone should ask CNIG to include GeoTIFF SRS tags. At least, for
file
pnt_sentinel2_2020_invierno_mosaico_islas_canarias_b843_hu28_8bits.tif
which has only ModelTiepointTag and ModelPixelScaleTag geotiff keys
giving the geospatial extent, but no CRS keys.
Even
Le 02/01/2024 à 13:14, Javier Jimenez Shaw via gdal-dev a écrit :
Hi
Does it make any sense to provide COG via HTTP POST method?
If I understand correctly, the "magic" of downloading only what is
needed from the server is done with HTTP Range requests. But I am not
sure if that works in POST method (it does work in GET method, when
enabled ;).
In case it could work with POST, I do not know how to tell GDAL or
QGIS to use a POST method.
Why am I asking this? the CNIG (Natial Center of Geographic
Information in Spain) is doing it.
https://centrodedescargas.cnig.es/CentroDescargas/index.jsp The link
is just the starting point. Unfortunately they do not provide link to
the final page where you can download the files (yes, ugly).
So for now I have to download the full file, and do whatever I want later.
Thanks
Javier
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