pls solutions présentées : https://stackoverflow.com/questions/29508958/how-to-embed-standalone-bokeh-graphs-into-django-templates/29524050#29524050
callback js https://bokeh.pydata.org/en/latest/docs/user_guide/interaction/callbacks.html#userguide-interaction-jscallbacks
a lire: https://old.opendatascience.com/blog/integrating-pandas-django-rest-framework-and-bokeh/