Hello Kathleen,

Please see our wiki at http://bitbucket.org/galaxy/galaxy-central/wiki/DataSources for details about how Galaxy communicates with external data sources.  Your "dataset platform" will need to build an url that includes all of the parameters that are needed to retrieve the data, and send that url to Galaxy in the URL parameter so that Galaxy can execute the post.

On Nov 16, 2009, at 9:06 AM, WangJun wrote:

This is a question about Galaxy interaction with UCSC data.
I hava a dataset platform, and I want to add a button like the UCSC's "Send query to Galaxy".
I find that it's actually a form:
<form method="POST" action="http://main.g2.bx.psu.edu/tool_runner">
<input type="HIDDEN" value="ucsc_table_direct1" name="tool_id"/>
<input type="HIDDEN" value="http://genome.ucsc.edu/cgi-bin/hgTables" name="URL"/>
<input type="HIDDEN" value="296389734" name="hguid"/>
<input type="HIDDEN" value="hg18" name="db"/>
<input type="HIDDEN" value="Human" name="org"/>
<input type="HIDDEN" value="multiz28way" name="hgta_table"/>
<input type="HIDDEN" value="multiz28way" name="hgta_track"/>
<input type="HIDDEN" value="range" name="hgta_regionType"/>
<input type="HIDDEN" value="primaryTable" name="hgta_outputType"/>
<input type="HIDDEN" value="chr3:130734948-130736581" name="position"/>
<input type="HIDDEN" value="get output" name="hgta_doTopSubmit"/>
<input type="HIDDEN" value="146683120" name="hgsid"/>
<input type="SUBMIT" value="Send query to Galaxy" name="hgta_doGalaxyQuery"/>
I have a url and three params, and I tried. But I can't see my data in the right-side green box.
And what's the tool_id param used for?
Thanks in advance!
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Greg Von Kuster
Galaxy Development Team