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

machine.js

  const iteratorMachine = Machine({
    id: 'IteratorMachine',
    initial: 'fetching',
    context: {
      // ** state machine global **
      
      // immutable
      transaction: '',
      _marker: '',
      snapshot: '',
      options_mode: '',
      options_reverse: '',
        
      // mutable
      iteration: '',
      options_limit: '',
      begin: '',
      end: '',
      
      // ** state: fetching **

      // immutable
      fut_key_value_array: '',

      // ** state: kv_array_available **
      
      // immutable
      more: '',
      
      // mutable
      kv_array: '',
    },
    states: {
      fetching: {
        on: {
          FETCH_OK: 'kv_array_available',
          FETCH_ERROR: 'error',
        }
      },
      kv_array_available: {
        on: {
          FETCH_NEXT_BATCH: 'fetching',
          DONE: 'done',
        },
        entry: [
          'update:options_limit',
          'update:iteration',
          'update: begin',
          'update: end'
        ],
      },
      error: {
        type: 'final'
      },
      done: {
        type: 'final'
      }
    },
  });