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 fetchStates = (key)=> ({
    initial: 'idle',
    states: {
      idle: {
        after: {
          1: {
            target: 'success',
            cond: {
              type: 'hasData',
              key
            }
          },
          2: {target: 'loading'}
        }
        },
        loading: {
          on: {
            RESOLVE: {
              target:'success',
              actions: assign({[key]:(context, event) =>"foo"})
            },
            REJECT: 'failure'
          }
        },
        success: {
          type: 'final',
        },
        failure: {
          on: {
            RETRY: {
              target: 'loading'
            }
          }
        }
    }
  })
  
  const fetchMachine = Machine({
    id: 'fetch',
    initial: 'a',
    context: {
      retries: 0
    },
    states: {
      a: {
       ...fetchStates('a'),
       on: {
         B: 'b'
       }
      },
      b: {
       ...fetchStates('b'),
       on: {
         A: 'a'
       }
      }
    },
  }, {
    guards: {
      hasData: (context, event, {cond}) => {
        return context[cond.key] !== undefined;
      }
    }
  });