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30 lines
1.3 KiB
30 lines
1.3 KiB
import { useEffect, useCallback } from 'react'
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import { useDispatch, useSelector } from 'react-redux'
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import { getContractMethodData as getContractMethodDataAction } from '../store/actions'
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import { getKnownMethodData } from '../selectors/selectors'
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/**
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* Access known method data and attempt to resolve unknown method data
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*
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* encapsulates an effect that will fetch methodData when the component mounts,
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* and subsequently anytime the provided data attribute changes. Note that
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* the getContractMethodData action handles over-fetching prevention, first checking
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* if the data is in the store and returning it directly. While using this hook
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* in multiple places in a tree for the same data will create extra event ticks and
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* hit the action more frequently, it should only ever result in a single store update
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* @param {string} data the transaction data to find method data for
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* @return {Object} contract method data
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*/
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export function useMethodData (data) {
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const dispatch = useDispatch()
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const knownMethodData = useSelector((state) => getKnownMethodData(state, data))
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const getContractMethodData = useCallback((methodData) => dispatch(getContractMethodDataAction(methodData)), [dispatch])
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useEffect(() => {
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if (data) {
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getContractMethodData(data)
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}
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}, [getContractMethodData, data])
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return knownMethodData
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}
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