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June 16, 2019 09:10
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Save patroza/4488f8fa2b80ee723dafd102e312b888 to your computer and use it in GitHub Desktop.
useMatchFetch alternative to https://dev.to/joelnet/react-i-really-wish-this-is-how-i-could-write-components-1k4j
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import { useState, useEffect } from "react"; | |
export const render = result => match => | |
result.pending ? match.pending() | |
: result.error ? match.error(result.error) | |
: result.data ? match.data(result.data) | |
: null // prettier-ignore | |
export const useMatchFetch = url => { | |
const [result, setResult] = useState({ pending: true, initial: true }); | |
const [fetchId, setFetchId] = useState(false) | |
useEffect(() => { | |
setResult({...result, pending: true}) | |
fetch(url) | |
.then(response => response.json()) | |
.then(data => setResult({ data, pending: false, initial: false })) | |
.catch(error => setResult({ error, pending: false, initial: false })); | |
}, [url, fetchId]); | |
const refetch = () => setFetchId(!fetchId) | |
return [result, refetch] | |
}; |
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const someComponent = () => { | |
const [result, refetch] = useMatchFetch('http://www.google.com') | |
if (result.error) { | |
return <Error error={error} /> | |
} | |
if (result.pending && result.initial) { | |
return <Loader /> | |
} | |
return ( | |
<div> | |
{result.pending && <Spinner />} | |
<button onClick={refetch}>Refetch</button> | |
{JSON.stringify(result.data, undefined, 2)} | |
</div> | |
) | |
} | |
// or, to get the previous behavior use `const renderMatch = render(result); return renderMatch(....)` |
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