a815ba9f79
This PR adds support for [Middleware as per RFC ](https://github.com/vercel/next.js/discussions/29750). ## Feature - [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR. - [ ] Related issues linked using `fixes #number` - [ ] Integration tests added - [ ] Documentation added - [ ] Telemetry added. In case of a feature if it's used or not. - [ ] Errors have helpful link attached, see `contributing.md` ## Documentation / Examples - [ ] Make sure the linting passes
104 lines
3.2 KiB
JavaScript
104 lines
3.2 KiB
JavaScript
/* globals __REPLACE_NOOP_IMPORT__ */
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import { initNext, version, router, emitter, render, renderError } from './'
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import initOnDemandEntries from './dev/on-demand-entries-client'
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import initWebpackHMR from './dev/webpack-hot-middleware-client'
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import initializeBuildWatcher from './dev/dev-build-watcher'
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import { displayContent } from './dev/fouc'
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import { connectHMR, addMessageListener } from './dev/error-overlay/websocket'
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import {
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assign,
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urlQueryToSearchParams,
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} from '../shared/lib/router/utils/querystring'
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// Temporary workaround for the issue described here:
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// https://github.com/vercel/next.js/issues/3775#issuecomment-407438123
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// The runtimeChunk doesn't have dynamic import handling code when there hasn't been a dynamic import
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// The runtimeChunk can't hot reload itself currently to correct it when adding pages using on-demand-entries
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// eslint-disable-next-line no-unused-expressions
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__REPLACE_NOOP_IMPORT__
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const {
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__NEXT_DATA__: { assetPrefix },
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} = window
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const prefix = assetPrefix || ''
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const webpackHMR = initWebpackHMR()
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connectHMR({ path: `${prefix}/_next/webpack-hmr` })
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window.next = {
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version,
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// router is initialized later so it has to be live-binded
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get router() {
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return router
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},
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emitter,
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render,
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renderError,
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}
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initNext({ webpackHMR })
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.then(({ renderCtx }) => {
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initOnDemandEntries()
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let buildIndicatorHandler = () => {}
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function devPagesManifestListener(event) {
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if (event.data.indexOf('devPagesManifest') !== -1) {
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fetch(`${prefix}/_next/static/development/_devPagesManifest.json`)
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.then((res) => res.json())
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.then((manifest) => {
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window.__DEV_PAGES_MANIFEST = manifest
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})
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.catch((err) => {
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console.log(`Failed to fetch devPagesManifest`, err)
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})
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} else if (event.data.indexOf('middlewareChanges') !== -1) {
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return window.location.reload()
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} else if (event.data.indexOf('serverOnlyChanges') !== -1) {
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const { pages } = JSON.parse(event.data)
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// Make sure to reload when the dev-overlay is showing for an
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// API route
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if (pages.includes(router.query.__NEXT_PAGE)) {
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return window.location.reload()
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}
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if (!router.clc && pages.includes(router.pathname)) {
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console.log('Refreshing page data due to server-side change')
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buildIndicatorHandler('building')
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const clearIndicator = () => buildIndicatorHandler('built')
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router
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.replace(
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router.pathname +
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'?' +
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String(
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assign(
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urlQueryToSearchParams(router.query),
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new URLSearchParams(location.search)
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)
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),
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router.asPath
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)
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.finally(clearIndicator)
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}
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}
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}
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addMessageListener(devPagesManifestListener)
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if (process.env.__NEXT_BUILD_INDICATOR) {
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initializeBuildWatcher((handler) => {
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buildIndicatorHandler = handler
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})
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}
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// delay rendering until after styles have been applied in development
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displayContent(() => {
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render(renderCtx)
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})
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})
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.catch((err) => {
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console.error('Error was not caught', err)
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})
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