Thumbnail not showing in notifications

[devinjparsons]

Using the camera category or a url image attachment, the notification never contains the thumbnail. I've tried setting the hide thumbnail attribute to true and false and it still doesn't work. I did find this post (https://stackoverflow.com/a/39356505) but i'm not sure if the current codebase is using Notification Content Extension or Notification Service Extension.

EDIT:
Looking through the code I see we are implementing both the Notification Service Extension for the notification and then Notification Content Extension for the playback of the live feed. It does look like here https://github.com/home-assistant/home-assistant-iOS/blob/master/APNSAttachmentService/NotificationService.swift#L109 that you are setting the fileidentifier to the the attachmentURL.lastPathComponent but in documentation[0] for that method it says this doesn't work for urls, so maybe that is the issue. It also looks like the identifier is not then being used when calling the init function https://github.com/home-assistant/home-assistant-iOS/blob/master/APNSAttachmentService/NotificationService.swift#L147.

I may be way off on all this, haven't developed in swift for iOS, this is just my poking around at the logic.

[0] - https://developer.apple.com/documentation/foundation/nsstring/1416528-lastpathcomponent

[mnoorenberghe]

Could you give an example of what you're doing on the home assistant side to send the notification with the image? I have thumbnails with my notifications working fine for months but I think I had to give the camera_proxy URL manually:

  action:
    service: notify.matthew
    data_template:
      title: '{{ trigger.to_state.name }}'
      message: '{{ trigger.to_state.state }} events on camera'
      data:
        attachment:
          content-type: jpeg
          url: /api/camera_proxy/camera.office?api_password=…
        tag: '{{ trigger.entity_id }}'
        url: https://zm.….com/zm/index.php?view=…
        entity_id: camera.office

[mnoorenberghe]

I went back to testing

…
data:
  push:
    category: camera
  entity_id: camera.office

and I noticed that I also didn't get a thumbnail initially. From reading the code, iOS falls back to looking at the URL suffix to determine the content type of the attachment but the camera_proxy URL doesn't have a file-type suffix so it probably fails because of that. Adding the content-type back (without theurl) fixed the thumbnails again:

…
data:
  attachment:
    content-type: jpeg
  push:
    category: camera
  entity_id: camera.office

From the hass docs it wasn't clear to me that content-type would have an effect for category: camera so I will update the docs to include it but also make a PR to default to jpeg for cameras since that seems to be what camera_proxy usually returns.

[devinjparsons]

Thanks for the work on this. I thought I had tried to set the content type and it still didn't work, but I will try it again. I have another question about the images, let me know if it should be another issue submitted. Can you add a camera stream to a notification that has custom actions? For instance I have a notification being sent for my garage door being left open where I can close it from the notification, it would be great to see the garage camera image in that same notification. Let me know if I should make another issue for that.

[robbiet480]

Yep, you can.

[devinjparsons]

thanks @robbiet480 and @mnoorenberghe got it all working. also got the action data working to detect which action button was pushed for which camera notification. So much nicer now having my garage camera image show up now before i close the garage door :)