Motivation

Provide the capabilities to actors on the backend to be persisted using waterline adapters.

Installation

add it to your project using npm install tarant-db-persist --save or yarn add tarant-db-persist

Usage

Initialize the sync client with the waterline adapter from the persist storage you will be interested on

import { ActorSystem, ActorSystemConfigurationBuilder } from 'tarant';
import * as diskAdapter from 'sails-disk';
import { PersistResolverMaterializer } from 'tarant-db-persist';
import AppActor from '../AppActor';

const config = {
    adapter: {
        type: diskAdapter,
        settings: {
          inMemoryOnly: true
        },
      },
      actorTypes: { AppActor }
  };

const persister = await PersistMaterializer.create(config)

const system : any = ActorSystem.for(ActorSystemConfigurationBuilder.define()
    .withMaterializers([persister])
    .withResolvers([persister])
    .done())  

your actors will require to implement IUpdatable (UpdateFrom) and IExportable (toJson)

import { Actor } from "tarant";
import { IUpdatable, IExportable } from "tarant-db-persist"

export default class AppActor extends Actor implements IUpdatable, IExportable {

  constructor(name: string) {
      super(name)
  }

  addOne() {
      this.counter++
  }

  toJson(){
        return {
            id: this.id,
            type:"AppActor",
            counter: this.counter
        }
    }

    updateFrom({ counter }: any): void {
        this.counter = counter
    }

    private counter = 1; 
}

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