This is an Encore application that continuously monitors the uptime of a list of websites.
When it detects a website going down it posts a Slack message notifying that the website is down, and another message when the website is back up again.
This took about 4 hours to build from scratch, including tests using Encore. It took 2 minutes to deploy, including databases, Pub/Sub topics, and cron jobs.
Check out the written tutorial (30 min) to learn how to build this application from scratch!
You will need the Encore CLI to run and deploy this application.
To install Encore, run:
# macOS
brew install encoredev/tap/encore
# Windows
iwr https://encore.dev/install.ps1 | iex
# Linux
curl -L https://encore.dev/install.sh | bashClone and run the app locally:
git clone [email protected]:encoredev/example-app-uptime.git
cd example-app-uptime
# Log in to Encore
encore auth login
# Set the Slack webhook secret (see tutorial above)
encore secret set SlackWebhookURL
# Run the app
encore run# Check if a given site is up (defaults to 'https://' if left out)
$ curl 'http://localhost:4000/ping/google.com'
# Add a site to be automatically pinged every 5 minutes
curl 'http://localhost:4000/site' -d '{"url":"google.com"}'
# Check all tracked sites immediately
curl -X POST 'http://localhost:4000/checkall'
# Get the current status of all tracked sites
curl 'http://localhost:4000/sites'encore app create my-oncall-app-name
git push origin mainThen head over to https://app.encore.dev to find out your production URL, and off you go into the clouds!
encore test ./...All contributions are welcome! All we ask is that you adhere to the Code of Conduct