Generated by XState Viz: https://xstate.js.org/viz

machine.js

  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions
  // - XState (all XState exports)

const tryLogin = () => {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      if (Math.random() < .5) {
        reject({ code: 1 })
      }
      
      resolve()
    }, 1000)
  })
}
  
  const authMachine = Machine({
    id: 'auth',
    initial: 'unauthenticated',
    states: {
      unauthenticated: {
        initial: 'idle',
        states: {
          idle: {
            on: {
              LOGIN: 'pending'
            }
          },
          pending: {
            invoke: {
              src: 'logMeIn',
              onDone: '#auth.authenticated',
              onError: [
                {
                  cond: 'noToken',
                  actions: 'test'
                }
              ]
            },
          },
        },
      },
      authenticated: {},
    }
  }, {
    services: {
      logMeIn: () => tryLogin()
    },
    guards: {
      noToken: (ctx, evt) => evt.data && evt.data.code === 1
    },
    actions: {
      test: () => { window.alert('go to login') }
    },
  });