A script for testing your Hubot's Slack webhook

hubot_slack_test.sh

#!/bin/bash

HEROKU_URL="$1"
if [ -z "$HEROKU_URL" ] ; then
	HEROKU_URL=`heroku config:get HEROKU_URL`
fi

SLACK_URI="$HEROKU_URL/hubot/slack-webhook"
CODE=`curl -sL -w "%{http_code}" -o /dev/null -d "" "$SLACK_URI"`
echo "POST to $SLACK_URI code $CODE" >&2

if [ "$CODE" -ne "200" ] ; then
	echo "not cool" >&2
	exit 1
fi

echo "cool" >&2

Test whether a Heroku-hosted Hubot with a Slack adapter has a correctly-behaving webhook.

$ ./hubot_slack_test.sh 
POST to http://your-hubot-name-here.herokuapp.com/hubot/slack-webhook code 200
cool

A few notes:

• these messages sent to stderr (helpful for using this in a crontab, for instance)
• return code will be 0 on success, 1 on failure (helpful for chaining with other scripts)