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Optimize the web server size (#34242)
Related to #34185, this PR reduces the size of chunk that contains web-server.ts from 1.14mb to 210.8kb, by splitting base-http and api-utils into different environments. Only affected thing is we can't have SSG preview mode for the web runtime via `getStaticProps`. ## Bug - [ ] Related issues linked using `fixes #number` - [ ] Integration tests added - [ ] Errors have helpful link attached, see `contributing.md` ## 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 by running `yarn lint`
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7 changes: 5 additions & 2 deletions
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packages/next/build/webpack/loaders/next-serverless-loader/api-handler.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| import type { IncomingMessage } from 'http' | ||
| import type { BaseNextRequest } from '../base-http' | ||
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| import { NextApiRequest, NextApiResponse } from '../../shared/lib/utils' | ||
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| export type NextApiRequestCookies = { [key: string]: string } | ||
| export type NextApiRequestQuery = { [key: string]: string | string[] } | ||
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| export type __ApiPreviewProps = { | ||
| previewModeId: string | ||
| previewModeEncryptionKey: string | ||
| previewModeSigningKey: string | ||
| } | ||
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| /** | ||
| * Parse cookies from the `headers` of request | ||
| * @param req request object | ||
| */ | ||
| export function getCookieParser(headers: { | ||
| [key: string]: undefined | string | string[] | ||
| }): () => NextApiRequestCookies { | ||
| return function parseCookie(): NextApiRequestCookies { | ||
| const header: undefined | string | string[] = headers.cookie | ||
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| if (!header) { | ||
| return {} | ||
| } | ||
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| const { parse: parseCookieFn } = require('next/dist/compiled/cookie') | ||
| return parseCookieFn(Array.isArray(header) ? header.join(';') : header) | ||
| } | ||
| } | ||
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| /** | ||
| * | ||
| * @param res response object | ||
| * @param statusCode `HTTP` status code of response | ||
| */ | ||
| export function sendStatusCode( | ||
| res: NextApiResponse, | ||
| statusCode: number | ||
| ): NextApiResponse<any> { | ||
| res.statusCode = statusCode | ||
| return res | ||
| } | ||
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| /** | ||
| * | ||
| * @param res response object | ||
| * @param [statusOrUrl] `HTTP` status code of redirect | ||
| * @param url URL of redirect | ||
| */ | ||
| export function redirect( | ||
| res: NextApiResponse, | ||
| statusOrUrl: string | number, | ||
| url?: string | ||
| ): NextApiResponse<any> { | ||
| if (typeof statusOrUrl === 'string') { | ||
| url = statusOrUrl | ||
| statusOrUrl = 307 | ||
| } | ||
| if (typeof statusOrUrl !== 'number' || typeof url !== 'string') { | ||
| throw new Error( | ||
| `Invalid redirect arguments. Please use a single argument URL, e.g. res.redirect('/destination') or use a status code and URL, e.g. res.redirect(307, '/destination').` | ||
| ) | ||
| } | ||
| res.writeHead(statusOrUrl, { Location: url }) | ||
| res.write(url) | ||
| res.end() | ||
| return res | ||
| } | ||
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| export const PRERENDER_REVALIDATE_HEADER = 'x-prerender-revalidate' | ||
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| export function checkIsManualRevalidate( | ||
| req: IncomingMessage | BaseNextRequest, | ||
| previewProps: __ApiPreviewProps | ||
| ): boolean { | ||
| return req.headers[PRERENDER_REVALIDATE_HEADER] === previewProps.previewModeId | ||
| } | ||
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| export const COOKIE_NAME_PRERENDER_BYPASS = `__prerender_bypass` | ||
| export const COOKIE_NAME_PRERENDER_DATA = `__next_preview_data` | ||
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| export const SYMBOL_PREVIEW_DATA = Symbol(COOKIE_NAME_PRERENDER_DATA) | ||
| export const SYMBOL_CLEARED_COOKIES = Symbol(COOKIE_NAME_PRERENDER_BYPASS) | ||
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| export function clearPreviewData<T>( | ||
| res: NextApiResponse<T> | ||
| ): NextApiResponse<T> { | ||
| if (SYMBOL_CLEARED_COOKIES in res) { | ||
| return res | ||
| } | ||
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| const { serialize } = | ||
| require('next/dist/compiled/cookie') as typeof import('cookie') | ||
| const previous = res.getHeader('Set-Cookie') | ||
| res.setHeader(`Set-Cookie`, [ | ||
| ...(typeof previous === 'string' | ||
| ? [previous] | ||
| : Array.isArray(previous) | ||
| ? previous | ||
| : []), | ||
| serialize(COOKIE_NAME_PRERENDER_BYPASS, '', { | ||
| // To delete a cookie, set `expires` to a date in the past: | ||
| // https://tools.ietf.org/html/rfc6265#section-4.1.1 | ||
| // `Max-Age: 0` is not valid, thus ignored, and the cookie is persisted. | ||
| expires: new Date(0), | ||
| httpOnly: true, | ||
| sameSite: process.env.NODE_ENV !== 'development' ? 'none' : 'lax', | ||
| secure: process.env.NODE_ENV !== 'development', | ||
| path: '/', | ||
| }), | ||
| serialize(COOKIE_NAME_PRERENDER_DATA, '', { | ||
| // To delete a cookie, set `expires` to a date in the past: | ||
| // https://tools.ietf.org/html/rfc6265#section-4.1.1 | ||
| // `Max-Age: 0` is not valid, thus ignored, and the cookie is persisted. | ||
| expires: new Date(0), | ||
| httpOnly: true, | ||
| sameSite: process.env.NODE_ENV !== 'development' ? 'none' : 'lax', | ||
| secure: process.env.NODE_ENV !== 'development', | ||
| path: '/', | ||
| }), | ||
| ]) | ||
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| Object.defineProperty(res, SYMBOL_CLEARED_COOKIES, { | ||
| value: true, | ||
| enumerable: false, | ||
| }) | ||
| return res | ||
| } | ||
|
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| /** | ||
| * Custom error class | ||
| */ | ||
| export class ApiError extends Error { | ||
| readonly statusCode: number | ||
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| constructor(statusCode: number, message: string) { | ||
| super(message) | ||
| this.statusCode = statusCode | ||
| } | ||
| } | ||
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| /** | ||
| * Sends error in `response` | ||
| * @param res response object | ||
| * @param statusCode of response | ||
| * @param message of response | ||
| */ | ||
| export function sendError( | ||
| res: NextApiResponse, | ||
| statusCode: number, | ||
| message: string | ||
| ): void { | ||
| res.statusCode = statusCode | ||
| res.statusMessage = message | ||
| res.end(message) | ||
| } | ||
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| interface LazyProps { | ||
| req: NextApiRequest | ||
| } | ||
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| /** | ||
| * Execute getter function only if its needed | ||
| * @param LazyProps `req` and `params` for lazyProp | ||
| * @param prop name of property | ||
| * @param getter function to get data | ||
| */ | ||
| export function setLazyProp<T>( | ||
| { req }: LazyProps, | ||
| prop: string, | ||
| getter: () => T | ||
| ): void { | ||
| const opts = { configurable: true, enumerable: true } | ||
| const optsReset = { ...opts, writable: true } | ||
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| Object.defineProperty(req, prop, { | ||
| ...opts, | ||
| get: () => { | ||
| const value = getter() | ||
| // we set the property on the object to avoid recalculating it | ||
| Object.defineProperty(req, prop, { ...optsReset, value }) | ||
| return value | ||
| }, | ||
| set: (value) => { | ||
| Object.defineProperty(req, prop, { ...optsReset, value }) | ||
| }, | ||
| }) | ||
| } |
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