Created
February 27, 2020 15:03
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My React Router using hooks
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| import React, { | |
| createContext, | |
| useEffect, | |
| useState, | |
| useContext, | |
| useMemo, | |
| useCallback | |
| } from "react"; | |
| import history from "browser-history"; | |
| import pathToRegexp from "path-to-regexp"; | |
| const RouterContext = createContext(); | |
| const Router = ({ children }) => { | |
| const [url, setUrl] = useState(window.location.pathname); | |
| useEffect(() => { | |
| history((e, url) => setUrl(url)); | |
| }, []); | |
| const go = url => { | |
| setUrl(url); | |
| history(url); | |
| }; | |
| const testUrl = useCallback( | |
| (path, exact) => { | |
| const re = pathToRegexp(exact ? path : path + "(.*)", [], { | |
| sensitive: false | |
| }); | |
| return { | |
| doesMatch: re.test(url), | |
| parts: re.exec(url) | |
| }; | |
| }, | |
| [url] | |
| ); | |
| const contextValue = { | |
| url, | |
| testUrl, | |
| go | |
| }; | |
| return ( | |
| <RouterContext.Provider value={contextValue}> | |
| {children} | |
| </RouterContext.Provider> | |
| ); | |
| }; | |
| const Route = ({ | |
| path, | |
| exact, | |
| component: Component, | |
| children, | |
| ...componentProps | |
| }) => { | |
| const { testUrl } = useContext(RouterContext); | |
| const r = useMemo(() => testUrl(path, exact), [testUrl, path, exact]); | |
| if (r.doesMatch) { | |
| return Component ? ( | |
| <Component {...componentProps} parts={r.parts} /> | |
| ) : ( | |
| children | |
| ); | |
| } | |
| return null; | |
| }; | |
| const Link = ({ path, children }) => { | |
| const { go } = useContext(RouterContext); | |
| const onClick = () => { | |
| go(path); | |
| }; | |
| return <a onClick={onClick}>{children}</a>; | |
| }; | |
| const Redirect = ({ from, to }) => { | |
| const { go, testUrl } = useContext(RouterContext); | |
| const r = useMemo(() => testUrl(from, true), [testUrl, from]); | |
| if (r.doesMatch) { | |
| go(to); | |
| } | |
| return null; | |
| }; | |
| export { RouterContext, Router, Route, Redirect, Link }; |
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