Site Checker

Checks the websites every interval, and sends an email for any websites that are down (status 404 from a GET request on the given url).

Instructions

1. Run npm install in the command line to install the dependencies
2. Copy the json files from src/templates/ to src/.
3. Set up a Gmail (or whichever smtp host) smtp key in Gmail. See Nodemailer and Gmail for instructions (link in notes).
4. Add the Gmail app key to auth.json
5. Fill in the other values in the .json files.
   • Any number of websites can be added to sites.json
6. Run the src/checker.js script with a daemon tool like forever or pm2.

Notes

• If the interval time is very small and a website goes down, you'll get a lot of emails in a short time. Take this into account when deciding an interval time. I've found every 15 minutes to be a reasonable interval for my websites.
• This daemon process lends itself well to a low power server device like Raspberry Pi, or any server you currently have running 24/7.
• The base email functionality is in Nodemailer. See the OAuth2 page for help or retooling.