mattermost.sh

#!/bin/sh

set -e

MATTERMOST_API="FILL-IN-MATTERMOST-ENDPOINT"
MATTERMOST_TOKEN="FILL-IN-INTEGRATION-TOKEN"
MATTERMOST_USERNAME="AN-USERNAME"
MATTERMOST_ICON="AN-URL-TO-AN-IMAGE"

die() {
  echo >&2 "$@"
  exit 1
}

[ "$#" -eq 2 ] || die "Usage: mattermost.sh CHANNEL_NAME MESSAGE"

channel=$1
message=$2
url="$MATTERMOST_API/$MATTERMOST_TOKEN"

payload="{ \
  \"text\": \"$message\", \
  \"channel\": \"$channel\", \
  \"username\": \"$MATTERMOST_USERNAME\", \
  \"icon_url\": \"$MATTERMOST_ICON\" \
}"

curl -X POST --silent --show-error --output /dev/null -d "payload=$payload" $url || true