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 fetching = () => fetch('https://hacker-news.firebaseio.com/v0/item/160705.json?print=pretty')
  .then(res => res.json());

const fetchMachine = Machine(
  {
    id: 'fetch',
    initial: 'idle',
    context: {
      data: {},
      error: {},
      isFetching: false
    },
    states: {
      idle: {
        entry: 'isNotFetching',
        on: {
          FETCH: 'fetching'
        }
      },
      fetching: {
        entry: 'isFetching',
        invoke: {
          id: 'repo',
          src: fetching,
          onDone: {
            target: 'success',
            actions: ['getData']
          },
          onError: {
            target: 'failure',
            actions: ['getError']
          }
        },
        on: {
          CANCEL: 'idle'
        }
      },
      intervalFetching: {
        after: {
          INTERVAL: 'fetching'
        },
        on: {
          CANCEL: 'idle'
        }
      },
      success: {
        entry: 'isNotFetching',
        after: {
          0: 'intervalFetching'
        }
      },
      failure: {
        entry: 'isNotFetching',
        on: {
          RETRY: 'idle'
        }
      }
    }
  },
  {
    delays: {
      INTERVAL: 10000,

    },
    actions: {
      getData: assign({
        data: (context, event) => {
          console.log('event', event);
          return event.data
        }
      }),
      getError: assign({
        error: (context, event) => event.data
      }),
      isNotFetching: assign({ isFetching: false }),
      isFetching: assign({ isFetching: true }),
    }
  }
);