Own Your Blockchain Data - Live, Historical & Custom State Modeling

Run a self-hosted TypeScript apps with automatic chain reorg support - deliver live and historical blockchain events over HTTP, WS, or IPC, tailored to your custom state models.

Works on

main.ts· Bootsrap function

import { bootstrap } from '@easylayer/evm-crawler';
import Model from './model.ts';

bootstrap({
  Models: [Model]
}).catch(console.error);

model.ts· Describe Your Custom Model

import { BasicEvent, EventBasePayload, Model, Block } from '@easylayer/evm-crawler';

export class CustomEvent<T extends EventBasePayload> extends BasicEvent<T> {}; // Define your custom event

export default class CustomModel extends Model { // Create your model
    constructor() {
      super('uniq-model-id'); // This ID will be used to fetch events and state
    }

    public async parseBlock({ block }: { block: Block }) {} // Maps custom events from block - user defines which data they need
    private onCustomEvent({ payload }: CustomEvent) {} // Updates model state when custom event occurs
}

How does it work? 🧐

Define your state Model to transform on‑chain data into domain events, configure your Event Store (PostgreSQL or SQLite) and blockchain self Node or provider. EasyLayer will handle everything else automatically.

Use Transport to get your domain state object at any block height or subscribe to real-time events with guaranteed at‑least‑once delivery, and replay historical events from any blockchain height for recovery, auditing and full transparency.