An invalid notification (type=<class 'NoneType'>) was specified.

[StefanSa]

📣 Notification Service(s) Impacted
E-Mail

🐞 Describe the bug
i convert https://github.com/camalot/apprise-webhook webhooks from harbor registry to apprise notification.
apprise-webhook sends the notification to apprise in the correct format, at least that's what it looks like.
However, the following error message is generated:
[ERROR] apprise: An invalid notification (type=<class 'NoneType'>) was specified.

Any ideas?
Thanks for any help

💡 Screenshots and Logs
Notification that is sent to apprise:

Posting data to http://apprise:8000/notify/
{
  body: 'Docker 🐳 image  scan status  harbor.scan.completed.',
  title: '*Harbor*',
  type: 'info',
  format: 'text'
}

error message apprise:

10.0.5.187 - - [14/Mar/2025:08:27:54 +0000] "POST /notify/ HTTP/1.1" 204 0 "-" "axios/0.27.2"
2025-03-14 03:28:02,712 [DEBUG] apprise: Language set to en
2025-03-14 03:28:02,712 [ERROR] apprise: An invalid notification (type=<class 'NoneType'>) was specified.
2025-03-14 03:28:02,712 [WARNING] django: NOTIFY - 127.0.0.1 - No valid URLs provided

docker-compose file:

services:
  apprise-webhook:
    image:  ghcr.io/camalot/apprise-webhook:latest
    deploy:
      mode: replicated
      replicas: 1
      placement:
        constraints:
          - node.role == manager
    environment:
      APPRISE_URL: http://apprise:8000/notify/
      TEMPLATE: harbor
      #APPRISE_KEY: docker
    volumes:
      - /mnt/nfs/webhook/hooks/harbor.njk:/app/templates/harbor.njk #custom template
    networks:
      harbor: null

  apprise:
    image: caronc/apprise
    environment:
      - LANG=en_US
      - LOG_LEVEL=DEBUG
      - APPRISE_CONFIG_URL=mailto://webmail-relay.testlocal:25?from=harbor@felten-group.com&to=test@test.com
    deploy:
      mode: replicated
      replicas: 1
      placement:
        constraints:
          - node.role == manager
    networks:
      harbor: null

networks:
  harbor:
    name: harbor_harbor
    external: true

[caronc]

I am not familiar with the plugin; the bug would reside with the author there.
You might try asking here instead.

From my side, perhaps i need a request that adds some sort of harbor registry support for the Apprise-API?

[StefanSa]

@caronc Hi Chris,
Thank you for your quick reply.
One comment, as an alternative tool to apprise, NotifyMe which uses the powerful Apprise Python module i don't have this problem.

services:
  apprise-webhook:
    image:  ghcr.io/camalot/apprise-webhook:latest
    deploy:
      mode: replicated
      replicas: 1
      placement:
        constraints:
          - node.role == manager
    environment:
      #APPRISE_URL: http://apprise:8000/notify/
      APPRISE_URL: http://apprise:8000
      TEMPLATE: harbor
      #APPRISE_KEY: docker
    volumes:
      - /mnt/nfs/webhook/hooks/harbor.njk:/app/templates/harbor.njk #custom template
    networks:
      harbor: null

  apprise:
    #image: caronc/apprise
    image: pysergio/notifyme
    environment:
      - LANG=en_US
      - LOG_LEVEL=DEBUG
      #- APPRISE_CONFIG_URL=mailto://webmail-relay.tets.local:25?from=harbor@test.com&to=tester@test.com
      - NOTIFYME_DEFAULT==mailto://webmail-relay.test.local:25?from=harbor@test.com&to=tester@test.com
    deploy:
      mode: replicated
      replicas: 1
      placement:
        constraints:
          - node.role == manager
    networks:
      harbor: null

networks:
  harbor:
    name: harbor_harbor
    external: true

Here it works right away with almost the same configuration.
Surely it would be better and advantageous if Apprise-Api would directly support Harbor Webhooks https://goharbor.io/docs/2.12.0/working-with-projects/project-configuration/configure-webhooks/.