Sending URL parameter from Flask to a Bokeh server

Question

I\'m trying to integrate a Bokeh \"autoloaded\" server into a Flask app where the set of data to load would be chosen by the user on another page.

The ID of this set

Answer 1

You can do it by appending to the src attribute of the <script> tag returned from autoload_server. Check out my function appendQuery in the source for this question

def appendQuery( script , key , value) :
    # Pass along the parameter as a query string to the script's src url: TODO this will formally be introduced in next release of Bokeh to avoid this hack
    script_list = script.split("\n")
    idxSrcAttr = 2
    script_list[idxSrcAttr] = script_list[idxSrcAttr][:-1] + "&{}={}\"".format( key , value )
    script = "\n".join(script_list)
    return script

This is methodology is supposed to be formalized in an upcoming Bokeh release according to... https://github.com/bokeh/bokeh/issues/5992#issuecomment-287232101