Retrieving images from the internet every day

[CrookDev]

I'm only a few days into fitbit clockface development, so please forgive me if this is too obvious. I want my clockface to download a new image from the internet every day and use it as a background. I can get the image and set it as a BG with the companion app with fetch(), but how do I trigger the download from the app itself? I want to trigger the function in the companion app from the watch don't I? I'm unclear on how that's achieved. I guess I'll need a test condition for the date, and if the image hasn't been downloaded already for that date (I'm going to host a server with 366 images), then trigger the download from the companion app and delete the previous image from the fs? I realise I may have  misunderstood the architecture so any advice is appreciated.

[Gondwana]

I think the process you outlined would be the most efficient one. An issue is that the companion code doesn't run continually. For best results, give it a wake interval and run_background permission.

If that's not sufficiently reliable, you could check the need for a new image on the watch (app/index.js) and send a communication to the companion to wake it and trigger the download. However, I've found it best to try to do as much as possible in the companion.