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 questionMachine = Machine({
    id: 'question',
    initial: 'query',
    context: {},
    states: {
      query: {
        invoke: {
          src: 'query',
          onDone: 'done',
          onError: 'error'
        }
      },
      done: {
        type: 'final'
      },
      error: {
        on: {
          RETRY: 'query'
        }
      }
    }
  }, {
    services: {
      query: () => {
        return Promise.resolve('question')
      }
    }
  });
  const helpMachine = Machine({
    id: 'help',
    initial: 'closed',
    context: {
      questions: []
    },
    states: {
      closed: {
        on: {
          TOGGLE: 'open'
        }
      },
      open: {
        on: {
          TOGGLE: 'closed',
          REQUEST: {
            actions: assign({
              questions: (ctx, event) => [
                ...ctx.questions,
                {
                  question: event.question,
                  ref: spawn(questionMachine, {
                    id: `question-${event.id}`,
                    sync: true
                  })
                }
              ]
            })
          }
        }
      }
    }
  });