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| // Available variables: | |
| // - Machine | |
| // - interpret | |
| // - assign | |
| // - send | |
| // - sendParent | |
| // - spawn | |
| // - raise | |
| // - actions | |
| // - XState (all XState exports) | |
| const fetchMachine = Machine({ | |
| id: 'fetch', | |
| initial: 'idle', | |
| context: { | |
| elapsed: 0, | |
| duration: 2, | |
| interval: 0.1 | |
| }, | |
| states: { | |
| idle: { | |
| on: { | |
| FETCH: 'loading' | |
| } | |
| }, | |
| loading: { | |
| invoke: { | |
| src: context => cb => { | |
| const interval = setInterval(() => { | |
| cb('TICK'); | |
| }, 1000 * context.interval); | |
| return () => { | |
| clearInterval(interval); | |
| }; | |
| } | |
| }, | |
| on: { | |
| '': { | |
| target: 'longLoading', | |
| cond: context => { | |
| return context.elapsed >= context.duration; | |
| } | |
| }, | |
| RESOLVE: 'success', | |
| REJECT: 'failure', | |
| TICK: { | |
| actions: assign({ | |
| elapsed: context => +(context.elapsed + context.interval).toFixed(2) | |
| }) | |
| } | |
| } | |
| }, | |
| longLoading: { | |
| on: { | |
| RESOLVE: 'success', | |
| REJECT: 'failure', | |
| } | |
| }, | |
| success: { | |
| type: 'final' | |
| }, | |
| failure: { | |
| on: { | |
| RETRY: 'loading' | |
| } | |
| } | |
| } | |
| }); | |
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