@cristaline/react

React.js bridge for @cristaline/core

Requirements

• Node
• NPM

Usage

npm create vite -- --template react-ts project
cd project
npm install @cristaline/core @cristaline/react zod

[!WARNING] It is highly recommended to use a parsing library like Zod in order to ease the creation of robust and resilient schemas, but you can use any library of your choice.

touch src/event-store.ts

import type { EventShape } from "@cristaline/core";
import type { ZodSchema } from "zod";

import { defineEventStore } from "@cristaline/react"
import { MemoryEvent, MemoryState } from "@cristaline/core";
import { z } from "zod"

const eventSchema = z.object({
  type: z.literal("TodoAdded"),
  version: z.literal(1),
  identifier: z.string(),
  date: z.date({ coerce: true }),
  data: z.object({
    id: z.string(),
    title: z.string()
  })
}) satisfies ZodSchema<EventShape>;

type Event = z.infer<typeof eventSchema>

type Todo = {
  id: string,
  title: string
}

type State = {
  todos: Todo[]
}

export const { EventStoreProvider, useEventStore } = defineEventStore<State, Event>({
  event: MemoryEvent.for({
    events: [],
    parser: eventSchema.parse
  }),
  state: MemoryState.for({
    state: {
      todos: []
    }
  }),
  replay: (state, event) => {
    switch (event.type) {
      case "TodoAdded":
        return {
          ...state,
          todos: [
            ...state.todos,
            event.data
          ]
        }
    }
  }
});

touch src/main.tsx

import { createRoot } from 'react-dom/client'
import App from './App.tsx'
import { EventStoreProvider } from './eventstore'

createRoot(document.getElementById('root')!).render(
  <EventStoreProvider>
    <App />
  </EventStoreProvider>
)

touch src/App.tsx

import { useEventStore } from "./event-store";

export default function App() {
  const eventStore = useEventStore();

  return null;
}

Changelogs

Versions

• 1.0.0
• 0.1.0

1.0.0

Major changes

• Renamed the eventAdapter property from the arguments of the defineEventStore function to event
• Renamed the stateAdapter property from the arguments of the defineEventStore function to state

Minor changes

None.

Bug & security fixes

None.

0.1.0

Major changes

None.

Minor changes

None.

Bug & security fixes

None.

License

See LICENSE.