@bemedev/fstate v0.0.2

fstate

Features

Quick start

Installation

npm i @bemedev/fstate //or
yarn add @bemedev/fstate //or
pnpm add @bemedev/fstate

Usage (machine)

import { createMachine, serve } from '@bemedev/fstate';
const machine = createMachine(
  {
    tsTypes: {
      args: {} as number,
      context: {} as { val: string },
    },
    context: { val: '' },
    initial: 'idle',
    states: {
      idle: {
        type: 'sync',
        transitions: [
          {
            target: 'prom',
          },
        ],
      },
      prom: {
        type: 'async',
        promise: 'prom',
        onDone: [
          {
            target: 'finish',
            actions: ['ok'],
          },
        ],
        onError: [],
        timeout: '0',
      },
      finish: { type: 'final' },
    },
  },
  {
    promises: {
      prom: async () => true,
    },
    actions: {
      ok: ctx => {
        ctx.val = 'true';
      },
    },
  },
);
// => 'inactive'

Usage (serve)

import { createMachine, interpret } from '@bemedev/fstate';
const toggleMachine = createMachine({...});
//Serve infer the return type (the context is the return type of the function)
//Also it infers the fact that serve will be an async function or not
//Here before the states contain an async one,
//"service" will be an async function.
const service = serve(machine); // (args: number)=>Promise<{ val: string }>
(()=>await service(2))() // expected = { val: 'true' }