Examples

curl:

curl -sS https://nowlark.com/v1/notify \
  -H "X-Nowlark-Key: $NOWLARK_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"source":"Backup","title":"Nightly backup finished","body":"482 GB in 41 min","priority":-1}'

Python: nowlark.py uses the standard library only, so there is nothing to install. Fetch it with curl -O https://nowlark.com/clients/nowlark.py:

from nowlark import notify

notify("CI", "Build 4181 failed", "Tests passed, signing did not.",
       url="https://ci.yourcompany.com/builds/4181", priority=1, dedupe="build-4181")

Shell, for anything that is not Python, nowlark:

nowlark "Backup" "Nightly backup finished" "482 GB in 41 min" --priority -1