Activity

1. priyamjyotsna

   added a commit that references this issue on Apr 3, 2026

   fix(vercel): buffer POST body for app.fetch to fix POST timeouts

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   56dc468
2. venarius commented on Apr 10, 2026

   

   venarius

   on Apr 10, 2026

   Last edited by venarius

   More actions

   +1 Same Issue here

   My solution:

   // @ts-nocheck — pre-built backend bundle has no type declarations
   import type { IncomingMessage, ServerResponse } from 'http';
   
   import app from '../apps/backend/dist/app.js';
   
   export default async function handler(req: IncomingMessage, res: ServerResponse) {
     const proto = req.headers['x-forwarded-proto'] || 'https';
     const host = req.headers['x-forwarded-host'] || req.headers.host;
     const url = new URL(req.url!, `${proto}://${host}`);
   
     const headers = new Headers();
     for (const [key, value] of Object.entries(req.headers)) {
       if (value) headers.set(key, Array.isArray(value) ? value.join(', ') : value);
     }
   
     const init: RequestInit = { method: req.method, headers };
   
     if (req.method !== 'GET' && req.method !== 'HEAD') {
       init.body = await readBody(req);
     }
   
     const request = new Request(url.toString(), init);
     const response = await app.fetch(request);
   
     const respHeaders: Record<string, string[] | string> = {};
     response.headers.forEach((value, key) => {
       const existing = respHeaders[key];
       if (existing) {
         respHeaders[key] = Array.isArray(existing) ? [...existing, value] : [existing, value];
       } else {
         respHeaders[key] = value;
       }
     });
   
     res.writeHead(response.status, respHeaders);
   
     if (response.body) {
       const reader = response.body.getReader();
       let chunk = await reader.read();
       while (!chunk.done) {
         res.write(chunk.value);
         chunk = await reader.read();
       }
     }
   
     res.end();
   }
   
   function readBody(req: IncomingMessage): Promise<Buffer> {
     return new Promise((resolve, reject) => {
       const chunks: Buffer[] = [];
       req.on('data', (chunk: Buffer) => chunks.push(chunk));
       req.on('end', () => resolve(Buffer.concat(chunks)));
       req.on('error', reject);
     });
   }
   
   export const config = {
     api: {
       bodyParser: false,
     },
   };
3. yusukebe commented on Apr 12, 2026

   

   yusukebe

   on Apr 12, 2026

   Member

   More actions

   Hi @leohahn @venarius

   Honestly, I'm not familiar with Vercel recently, but is there any case to use @hono/node-server/vercel when Vercel already supports Hono apps natively? https://vercel.com/docs/frameworks/backend/hono
4. kazaminn

   added 2 commits that reference this issue on Apr 30, 2026

   🛠️ fix(api): Vercel ネイティブ Hono 対応で signup の POST ハングを修正

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   019c5e9

   🛠️ fix(deploy): switch Vercel function to native Hono export

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   deb6a63
5. abhishiv commented on Jun 25, 2026

   

   abhishiv

   on Jun 25, 2026

   More actions

   Honestly, I'm not familiar with Vercel recently, but is there any case to use @hono/node-server/vercel when Vercel already supports Hono apps natively? https://vercel.com/docs/frameworks/backend/hono

   Because otherwise you get following error

   ok now i get different error
   onError TypeError: c2.req.raw.headers.get is not a function
       at getSignedCookie (file:///var/task/index.js:255800:37)
       at getUserCookieV2 (file:///var/task/index.js:255897:24)
       at Object.handler (file:///var/task/index.js:285028:26)
   
6. satyam-bhosale commented on Jun 25, 2026

   

   satyam-bhosale

   on Jun 25, 2026

   More actions

   I'm currently working with the same setup, and you don't have to use the node-server from Vercel, just do the export default app, it'll run on node js runtime only. Just add the following env variables: NODEJS_HELPERS=0 and VERCEL_EXPERIMENTAL_BACKENDS=1
7. operations148

   added a commit that references this issue on Jul 8, 2026

   fix(api): buffer request body in Vercel bridge to stop POST hang + ha…

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   82ba2c4
8. Chelsearoseeify

   added a commit that references this issue on Jul 12, 2026

   fix(api): unhang POST on Vercel, fail-fast on bad DB config in dev

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   9479bbd
9. aniketmandloi

   added 2 commits that reference this issue on Sep 21, 2026

   Emit the Build Output API instead of hoping Vercel finds the bundle

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   a3c5b10

   Export a Node listener, because the launcher never reads a Web handler

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   543a311