PocketBase Server-Side JavaScript (pb_hooks)

Runtime Basics

• Files go in pb_hooks/*.pb.js (must end with .pb.js)
• Engine: goja — ES5.1 + some ES6. No ES6 modules (import/export), no async/await, no arrow functions in older versions. Use function(){} and CommonJS require().
• Each file is loaded on app start and on hot-reload
• __hooks — absolute path to the pb_hooks directory
• TypeScript declarations: pb_data/types.d.ts (auto-generated, useful for IDE support)
• --hooksPool=25 flag controls concurrent JS goroutines (default: 25)
• Each handler runs in an isolated context — no shared mutable state between requests

Routing

Adding routes