The registry has some new features:
Cross Origin Resource Sharing (CORS) headers are now tested by the
registry: The http://www.dasregistry.org/das/sources response has
<PROP name="cors" value="probably_valid"/> or <PROP name="cors"
value="valid"/> for data sources that have the correct header ("Access-
Control-Allow-Origin:*"). These headers should make it easier for
JavaScript based DAS clients to make requests from DAS sources using
ajax and alleviate the need for proxy use for cross client requests.
The registry web service responses also have cors headers.
16 of the many UCSC sources are now available in the registry (created
via a sources document at www.dasregistry.org/ucsc/das/sources). Note
that currently clients will want to filter these sources using types
filters as the UCSC sources work slightly differently to most of the
sources available in the registry. Each UCSC source effectively
contains many tracks (we are currently working with the UCSC to change
this). However if the DAS specification is adhered to both clients
and servers should support the types filtering anyway.
New web service requests available for clients to interact with the
registry:
* added rows capability for the sources cmd http://www.dasregistry.org/das/sources?rows=1-2
returns the first two sources with a number for the total sources
available and the start and end rows/numbers requested
* extra command for registry dasregistry/das/knownCapabilities shows
what capabilities are known to the registry.
* added keywords parameter to sources cmds e.g. http://www.dasregistry.org/das/sources?keywords=zebrafish
will filter by sources that contain the keywords zebrafish
* added keywords parameter to coordinatesystem command
http://www.dasregistry.org/das/coordinatesystem?keywords=gorilla
* added total, start, end attributes to coordinatesystem request
response if rows specified http://www.dasregistry.org/das/coordinatesystem?keywords=gene&rows=1-10
A sources document exists for the sanger das sources here http://das.sanger.ac.uk/das/sources
which contains all the recent sources that have a valid coordinate
systems and should make it easier for clients to interact with the
many sanger das sources.
For any more information please don't hesitate to contact me or read
my blog at http://biodasman.wordpress.com
Thanks
Jonathan.
Jonathan Warren
Senior Developer and DAS coordinator
blog: http://biodasman.wordpress.com/
[email protected]
--
The Wellcome Trust Sanger Institute is operated by Genome Research
Limited, a charity registered in England with number 1021457 and a
company registered in England with number 2742969, whose registered
office is 215 Euston Road, London, NW1 2BE.
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