Routier

⚠️ Release Candidate - This project is currently a release candidate. APIs may change between versions. Use with caution in production.

A reactive data toolkit for building fast, local-first apps. Define schemas, create collections, use live queries, and make optimistic mutations with a plugin model for any storage.

📖 View Full Documentation - Complete guides, API reference, and tutorials

Features

• Schema-first: Type-safe entity definitions with indexes and modifiers
• Live queries: Reactive queries across one or more collections
• Optimistic mutations: Instant UI updates with automatic rollback
• Pluggable storage: Memory, Local Storage, Dexie, SQLite, PouchDB, File System, and more
• Change tracking: Automatic tracking of entity modifications
• Performance: Database-backed filters when possible, in-memory for computed properties

Quick Start

npm install @routier/core @routier/datastore @routier/memory-plugin

import { DataStore } from "@routier/datastore";
import { MemoryPlugin } from "@routier/memory-plugin";
import { s } from "@routier/core/schema";

// Define a schema
const userSchema = s
  .define("users", {
    id: s.string().key().identity(),
    name: s.string(),
    email: s.string().distinct(),
  })
  .compile();

// Create a datastore with a plugin
class AppContext extends DataStore {
  constructor() {
    super(new MemoryPlugin("routier-app"));
  }
  users = this.collection(userSchema).create();
}

const ctx = new AppContext();

// Add data
await ctx.users.addAsync({ name: "Ada", email: "ada@example.com" });
await ctx.saveChangesAsync();

// Query with live updates
ctx.users
  .subscribe()
  .where((u) => u.name.startsWith("A"))
  .toArray((result) => {
    console.log("Live query result:", result);
  });

Why Routier?

Choosing storage for local-first apps is hard—and the landscape moves fast. Routier separates your domain model from persistence through a small plugin interface:

• Swap storage backends without changing schemas, queries, or UI
• Use any framework/ORM/data store you want via plugins
• Experiment safely: try a new store by writing a plugin
• Fill ORM gaps: feature-rich and easily extended

Built-in Plugins

• Memory: In-memory storage for development and testing
• Local Storage: Browser localStorage/sessionStorage
• Dexie: IndexedDB with Dexie.js
• PouchDB: CouchDB sync and replication
• SQLite: Node.js SQLite integration
• File System: Node.js file-based storage

Contributing

Issues and PRs welcome! Please see our Contributing Guide or open an issue to discuss changes.

License

MIT