Tutorial — CountPortals
This tutorial walks you through building a plugin with the IITC Plugin Kit.
By the end you'll have a plugin that counts portals within the hack range of a DrawTools polyline.

Prerequisites
- Node.js
- Yarn
- A text editor (any will do); I recommend VS Code
- An Ingress account and IITC installed in your browser
- (Optional, for advanced users) Git for source control
Helpful but not required: familiarity with HTML, CSS/postCSS, jQuery, Leaflet, TypeScript, or JavaScript.