Pushover returns 400 bad request

[DennisGaida]

Describe the bug
Trying to use shoutrrr to call Pushover service, but always get a 400 error.

The log simply states (obfuscated with x,y,z):

Failed to send notification via shoutrrr (url=pushover://shoutrrr:xxx@yyy/?devices=zzz): failed to send notifications to pushover devices: failed to send notification to pushover device "zzz", response status "400 Bad Request"

Unfortunately I can't see the request shoutrrr is making even with tracing & debug enabled (room for improvement?)

To Reproduce
Steps to reproduce the behavior:

1. Configure shoutrrr with a Pushover URL: (url=pushover://shoutrrr:xxx@yyy/?devices=zzz)
2. Start watchtower
3. Observe error in docker log

Expected behavior
Use Pushover to send notifications

Logs from running watchtower with the WATCHTOWER_DEBUG & WATCHTOWER_TRACE option

time="2021-12-15T10:48:04+01:00" level=debug
time="2021-12-15T10:48:04+01:00" level=debug msg="Sleeping for a second to ensure the docker api client has been properly initialized."
time="2021-12-15T10:48:05+01:00" level=debug msg="Making sure everything is sane before starting"
time="2021-12-15T10:48:05+01:00" level=debug msg="Retrieving running, stopped and exited containers"
time="2021-12-15T10:48:05+01:00" level=debug msg="There are no additional watchtower containers"
time="2021-12-15T10:48:05+01:00" level=debug msg="Watchtower HTTP API skipped."
time="2021-12-15T10:48:05+01:00" level=info msg="Watchtower 1.3.0\nUsing notifications: pushover\nChecking all containers (except explicitly disabled with label)\nScheduling first run: 2021-12-15 12:30:00 +0100 CET\nNote that the first check will be performed in 1 hour, 41 minutes, 54 seconds"
time="2021-12-15T10:48:05+01:00" level=warning msg="trace level enabled: log will include sensitive information as credentials and tokens"
Failed to send notification via shoutrrr (url=pushover://shoutrrr:xxx@yyy/?devices=zzz):  failed to send notifications to pushover devices: failed to send notification to pushover device "zzz", response status "400 Bad Request"
Failed to send notification via shoutrrr (url=pushover://shoutrrr:xxx@yyy/?devices=zzz):  failed to send notifications to pushover devices: failed to send notification to pushover device "zzz", response status "400 Bad Request"

[piksel]

Try swapping the User Key and API Key (I could reproduce by swapping them). It should be:

pushover://shoutrrr:<APIKEY>@<USERKEY>

You can also test it by running the shoutrrr CLI container:

docker run --rm -it containrrr/shoutrrr send -v pushover://shoutrrr:<APIKEY>@<USERKEY> "Test message"

... and/or verify that the URL is parsed correctly:

docker run --rm -it containrrr/shoutrrr verify pushover://shoutrrr:<APIKEY>@<USERKEY>

The upcoming version of shoutrrr implements Pushover via the new WebClient and provides better error messages, but the current one only reports the status codes unfortunately.

[eakoning]

Swapping ApiKey and UserKey did it for me too. Older posts on GitHub suggested adding a devices parameter in the URL but that didn't help.

[DennisGaida]

Thanks for pointing out that directing testing is possible with shoutrrr! That helped me figure out the problem: An additional character in the API key...