132 lines
3.0 KiB
TypeScript
132 lines
3.0 KiB
TypeScript
import { PassThrough } from "node:stream";
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import type { AppLoadContext, EntryContext } from "@remix-run/node";
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import { createReadableStreamFromReadable } from "@remix-run/node";
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import { RemixServer } from "@remix-run/react";
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import isbot from "isbot";
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import { renderToPipeableStream } from "react-dom/server";
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const ABORT_DELAY = 5_000;
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export default function handleRequest(
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request: Request,
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responseStatusCode: number,
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responseHeaders: Headers,
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remixContext: EntryContext,
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loadContext: AppLoadContext,
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) {
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return isbot(request.headers.get("user-agent"))
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? handleBotRequest(
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request,
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responseStatusCode,
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responseHeaders,
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remixContext,
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)
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: handleBrowserRequest(
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request,
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responseStatusCode,
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responseHeaders,
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remixContext,
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);
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}
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function handleBotRequest(
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request: Request,
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responseStatusCode: number,
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responseHeaders: Headers,
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remixContext: EntryContext,
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) {
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return new Promise((resolve, reject) => {
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let shellRendered = false;
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const { pipe, abort } = renderToPipeableStream(
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<RemixServer
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context={remixContext}
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url={request.url}
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abortDelay={ABORT_DELAY}
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/>,
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{
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onAllReady() {
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shellRendered = true;
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const body = new PassThrough();
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const stream = createReadableStreamFromReadable(body);
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responseHeaders.set("Content-Type", "text/html");
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resolve(
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new Response(stream, {
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headers: responseHeaders,
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status: responseStatusCode,
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}),
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);
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pipe(body);
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},
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onShellError(error: unknown) {
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reject(error);
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},
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onError(error: unknown) {
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responseStatusCode = 500;
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// Log streaming rendering errors from inside the shell. Don't log
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// errors encountered during initial shell rendering since they'll
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// reject and get logged in handleDocumentRequest.
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if (shellRendered) {
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console.error(error);
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}
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},
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},
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);
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setTimeout(abort, ABORT_DELAY);
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});
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}
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function handleBrowserRequest(
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request: Request,
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responseStatusCode: number,
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responseHeaders: Headers,
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remixContext: EntryContext,
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) {
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return new Promise((resolve, reject) => {
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let shellRendered = false;
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const { pipe, abort } = renderToPipeableStream(
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<RemixServer
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context={remixContext}
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url={request.url}
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abortDelay={ABORT_DELAY}
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/>,
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{
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onShellReady() {
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shellRendered = true;
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const body = new PassThrough();
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const stream = createReadableStreamFromReadable(body);
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responseHeaders.set("Content-Type", "text/html");
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resolve(
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new Response(stream, {
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headers: responseHeaders,
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status: responseStatusCode,
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}),
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);
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pipe(body);
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},
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onShellError(error: unknown) {
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reject(error);
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},
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onError(error: unknown) {
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responseStatusCode = 500;
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// Log streaming rendering errors from inside the shell. Don't log
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// errors encountered during initial shell rendering since they'll
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// reject and get logged in handleDocumentRequest.
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if (shellRendered) {
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console.error(error);
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}
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},
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},
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);
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setTimeout(abort, ABORT_DELAY);
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});
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}
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