|
1 |
| -import ReactDOMServer from "react-dom/server"; |
| 1 | +import { PassThrough } from "stream"; |
2 | 2 | import type { EntryContext } from "@remix-run/node";
|
| 3 | +import { Response } from "@remix-run/node"; |
3 | 4 | import { RemixServer } from "@remix-run/react";
|
| 5 | +import isbot from "isbot"; |
| 6 | +import { renderToPipeableStream } from "react-dom/server"; |
| 7 | + |
| 8 | +const ABORT_DELAY = 5000; |
4 | 9 |
|
5 | 10 | export default function handleRequest(
|
6 | 11 | request: Request,
|
7 | 12 | responseStatusCode: number,
|
8 | 13 | responseHeaders: Headers,
|
9 | 14 | remixContext: EntryContext
|
10 | 15 | ) {
|
11 |
| - let markup = ReactDOMServer.renderToString( |
12 |
| - <RemixServer context={remixContext} url={request.url} /> |
13 |
| - ); |
| 16 | + return isbot(request.headers.get("user-agent")) |
| 17 | + ? handleBotRequest( |
| 18 | + request, |
| 19 | + responseStatusCode, |
| 20 | + responseHeaders, |
| 21 | + remixContext |
| 22 | + ) |
| 23 | + : handleBrowserRequest( |
| 24 | + request, |
| 25 | + responseStatusCode, |
| 26 | + responseHeaders, |
| 27 | + remixContext |
| 28 | + ); |
| 29 | +} |
| 30 | + |
| 31 | +function handleBotRequest( |
| 32 | + request: Request, |
| 33 | + responseStatusCode: number, |
| 34 | + responseHeaders: Headers, |
| 35 | + remixContext: EntryContext |
| 36 | +) { |
| 37 | + return new Promise((resolve, reject) => { |
| 38 | + let didError = false; |
| 39 | + |
| 40 | + let { pipe, abort } = renderToPipeableStream( |
| 41 | + <RemixServer |
| 42 | + context={remixContext} |
| 43 | + url={request.url} |
| 44 | + abortDelay={ABORT_DELAY} |
| 45 | + />, |
| 46 | + { |
| 47 | + onAllReady() { |
| 48 | + let body = new PassThrough(); |
| 49 | + |
| 50 | + responseHeaders.set("Content-Type", "text/html"); |
| 51 | + |
| 52 | + resolve( |
| 53 | + new Response(body, { |
| 54 | + headers: responseHeaders, |
| 55 | + status: didError ? 500 : responseStatusCode, |
| 56 | + }) |
| 57 | + ); |
| 58 | + |
| 59 | + pipe(body); |
| 60 | + }, |
| 61 | + onShellError(error: unknown) { |
| 62 | + reject(error); |
| 63 | + }, |
| 64 | + onError(error: unknown) { |
| 65 | + didError = true; |
| 66 | + |
| 67 | + console.error(error); |
| 68 | + }, |
| 69 | + } |
| 70 | + ); |
| 71 | + |
| 72 | + setTimeout(abort, ABORT_DELAY); |
| 73 | + }); |
| 74 | +} |
| 75 | + |
| 76 | +function handleBrowserRequest( |
| 77 | + request: Request, |
| 78 | + responseStatusCode: number, |
| 79 | + responseHeaders: Headers, |
| 80 | + remixContext: EntryContext |
| 81 | +) { |
| 82 | + return new Promise((resolve, reject) => { |
| 83 | + let didError = false; |
| 84 | + |
| 85 | + let { pipe, abort } = renderToPipeableStream( |
| 86 | + <RemixServer context={remixContext} url={request.url} />, |
| 87 | + { |
| 88 | + onShellReady() { |
| 89 | + let body = new PassThrough(); |
| 90 | + |
| 91 | + responseHeaders.set("Content-Type", "text/html"); |
| 92 | + |
| 93 | + resolve( |
| 94 | + new Response(body, { |
| 95 | + headers: responseHeaders, |
| 96 | + status: didError ? 500 : responseStatusCode, |
| 97 | + }) |
| 98 | + ); |
| 99 | + |
| 100 | + pipe(body); |
| 101 | + }, |
| 102 | + onShellError(err: unknown) { |
| 103 | + reject(err); |
| 104 | + }, |
| 105 | + onError(error: unknown) { |
| 106 | + didError = true; |
14 | 107 |
|
15 |
| - responseHeaders.set("Content-Type", "text/html"); |
| 108 | + console.error(error); |
| 109 | + }, |
| 110 | + } |
| 111 | + ); |
16 | 112 |
|
17 |
| - return new Response("<!DOCTYPE html>" + markup, { |
18 |
| - status: responseStatusCode, |
19 |
| - headers: responseHeaders, |
| 113 | + setTimeout(abort, ABORT_DELAY); |
20 | 114 | });
|
21 | 115 | }
|
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