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October 31, 2019 18:24
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// Available variables: | |
// - Machine | |
// - interpret | |
// - assign | |
// - send | |
// - sendParent | |
// - spawn | |
// - raise | |
// - actions | |
// - XState (all XState exports) | |
function isLoading(context, event) { | |
return context.isLoading; | |
} | |
function runJobSearch(context, event) { | |
return {} | |
} | |
const fetchMachine = Machine( | |
{ | |
id: 'fetch', | |
initial: 'idle', | |
context: { | |
retrieverId: 2, | |
filters: {}, | |
retries: 0, | |
isLoading: false, | |
results: {} | |
}, | |
states: { | |
idle: { | |
on: { | |
PARSE_FILTERS: { | |
target: 'fetchLoading', | |
actions: ['parseFilters'], | |
}, | |
}, | |
}, | |
fetchLoading: { | |
on: { | |
FETCH: { | |
target: 'fetchingResults', | |
actions: [assign({ isLoading: true }), 'setLoading'], | |
}, | |
}, | |
}, | |
fetchingResults: { | |
invoke: { | |
src: (context) => runJobSearch(context.filters, context.retrieverId), | |
onDone: { | |
target: 'fetchResults', | |
actions: assign({ | |
results: (context, event) => ({ | |
...context.results, | |
...event.data, | |
}), | |
}), | |
}, | |
onError: { | |
target: 'fetchError', | |
}, | |
}, | |
}, | |
fetchResults: { | |
on: { | |
RESULTS: { | |
target: 'fetchSuccess', | |
actions: [assign({ isLoading: false }), 'completed'], | |
}, | |
EMPTY: { | |
target: 'fetchLoading', | |
actions: ['resetFilters'], | |
}, | |
}, | |
}, | |
fetchSuccess: { | |
type: 'final', | |
}, | |
fetchError: { | |
on: { | |
RETRY: { | |
target: 'fetchLoading', | |
actions: [ | |
assign({ | |
isLoading: false, | |
retries: (context, event) => context.retries + 1, | |
}), | |
], | |
}, | |
}, | |
}, | |
}, | |
}, | |
{ | |
actions: { | |
// action implementations | |
setLoading: (context, event) => { | |
console.log('Loading...') | |
}, | |
parseFilters: (context, event) => { | |
console.log('Parsing Filters...') | |
}, | |
resetFilters: (context, event) => { | |
console.log('Resetting Filters...') | |
}, | |
completed: (context, event) => { | |
console.log('Fetch completed! ') | |
console.log('Setting filters in state! ') | |
console.log(context.results) | |
}, | |
}, | |
} | |
); | |
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