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68 changes: 68 additions & 0 deletions reflex/.templates/web/app/entry.server.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,68 @@
import { PassThrough } from "node:stream";

import { createReadableStreamFromReadable } from "@react-router/node";
import { ServerRouter } from "react-router";
import { isbot } from "isbot";
import { createElement } from "react";

import { renderToPipeableStream } from "react-dom/server.browser";

export const streamTimeout = 5_000;

export default function handleRequest(
request,
responseStatusCode,
responseHeaders,
routerContext,
loadContext,
) {
return new Promise((resolve, reject) => {
let shellRendered = false;
let userAgent = request.headers.get("user-agent");

// Ensure requests from bots and SPA Mode renders wait for all content to load before responding
// https://react.dev/reference/react-dom/server/renderToPipeableStream#waiting-for-all-content-to-load-for-crawlers-and-static-generation
let readyOption =
(userAgent && isbot(userAgent)) || routerContext.isSpaMode
? "onAllReady"
: "onShellReady";

const { pipe, abort } = renderToPipeableStream(
createElement(ServerRouter, { context: routerContext, url: request.url }),
{
[readyOption]() {
shellRendered = true;
const body = new PassThrough();
const stream = createReadableStreamFromReadable(body);

responseHeaders.set("Content-Type", "text/html");

resolve(
new Response(stream, {
headers: responseHeaders,
status: responseStatusCode,
}),
);

pipe(body);
},
onShellError(error) {
reject(error);
},
onError(error) {
responseStatusCode = 500;
// Log streaming rendering errors from inside the shell. Don't log
// errors encountered during initial shell rendering since they'll
// reject and get logged in handleDocumentRequest.
if (shellRendered) {
console.error(error);
}
},
},
);

// Abort the rendering stream after the `streamTimeout` so it has time to
// flush down the rejected boundaries
setTimeout(abort, streamTimeout + 1000);
});
}
6 changes: 1 addition & 5 deletions reflex/.templates/web/vite.config.js
Original file line number Diff line number Diff line change
Expand Up @@ -30,10 +30,6 @@ export default defineConfig((config) => ({
find: "@",
replacement: fileURLToPath(new URL("./public", import.meta.url)),
},
].concat(
config.command === "build"
? [{ find: "react-dom/server", replacement: "react-dom/server.node" }]
: [],
),
],
},
}));
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