Connecting Central to ReDash dashboard

[mathieubossaert]

OK I misunderstood your problem.
I just checked the query in redash and I think you can see images when you are already logged in Central. When your are not (as a normal user watching your dashboard), ODK Centrals asks you for login credentials.

The best solution would be (I do it with PostgreSQL but you could use the API in another tool) to extract with a cron task the images from central to an public place and link images to this place :

Accessing images on PowerBI

Sadly I recently learned that PowerBI does not send authentication credentials when fetching images so this is currently not possible directly from Central (docs: "make sure security credentials aren't required to access the image file"). I think adding anonymous access to images in Central is probably our best bet for this. There's a feature thread at Can we hotlink ODK Central media files?. In the mean time, I worked with a project that needed to do this and we ended up mirroring all media f…