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Extend client-side redirects #4

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Merged
merged 1 commit into from
Jun 14, 2020
Merged

Extend client-side redirects #4

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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@
"url": "https://github.com/pablopunk/nextjs-redirect"
},
"scripts": {
"build": "sucrase src -d dist --transforms imports,typescript && npm run generate-types && npm run prettier",
"build": "sucrase src -d dist --transforms imports,typescript,jsx && npm run generate-types && npm run prettier",
"generate-types": "dts-bundle-generator -o typings.d.ts src/index.tsx",
"prettier": "prettier src/*.tsx ./typings.d.ts --write",
"prepare": "npm run build"
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47 changes: 38 additions & 9 deletions src/index.tsx
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Original file line number Diff line number Diff line change
@@ -1,26 +1,55 @@
import React from 'react'
import Router from 'next/router'
import Head from 'next/head'

export default (
redirectUrl: string,
options?: { asUrl?: string; statusCode?: number }
) =>
class extends React.Component {
// Redirects on the server side first if possible
static async getInitialProps({ res }) {
if (res) {
if (res?.writeHead) {
res.writeHead(options?.statusCode ?? 301, { Location: redirectUrl })
res.end()
} else {
if (options?.asUrl != null) {
Router.push(redirectUrl, options.asUrl, { shallow: true })
} else {
Router.push(redirectUrl)
}
}

return {}
}

// Redirects on the client with JavaScript if no server
componentDidMount() {
if (options?.asUrl != null) {
Router.push(redirectUrl, options.asUrl, { shallow: true })
} else if (redirectUrl[0] === '/') {
Router.push(redirectUrl)
} else {
window.location.href = redirectUrl
}
}

render() {
return React.createElement('div')
const href = options?.asUrl ?? redirectUrl
return (
<>
<Head
children={
<>
{/* Redirects with meta refresh if no JavaScript support */}
<noscript>
<meta httpEquiv="refresh" content={`0;url=${href}`} />
</noscript>
{(options?.statusCode === undefined ||
options?.statusCode === 301) && (
<link rel="canonical" href={href} />
)}
</>
}
/>
{/* Provides a redirect link if no meta refresh support */}
<p>
Redirecting to <a href={href}>{href}</a>&hellip;
</p>
</>
)
}
}
1 change: 1 addition & 0 deletions tsconfig.json
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@@ -1,5 +1,6 @@
{
"compilerOptions": {
"jsx": "react",
"target": "es5",
"lib": ["dom", "dom.iterable", "esnext"],
"skipLibCheck": true,
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1 change: 1 addition & 0 deletions typings.d.ts
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Expand Up @@ -8,6 +8,7 @@ declare const _default: (
}
) => {
new (): {
componentDidMount(): void
render(): any
}
getInitialProps({ res }: { res: any }): Promise<{}>
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