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This repository was archived by the owner on Jan 23, 2026. It is now read-only.
This repository was archived by the owner on Jan 23, 2026. It is now read-only.

Unable to upload 10MB files using Functions #71

Description

@pedromassango

Bug report

  • I confirm this is a bug with Supabase, not with my own application.
  • I confirm I have searched the Docs, GitHub Discussions, and Discord.

Describe the bug

Getting error while trying to upload heavy File using Edge Functions. It works fine with files <=5 MB and it fails with files of around 9/10+ MBs.

To Reproduce

Steps to reproduce the behavior, please provide code snippets or a repository:

  1. Create a function that expects a Files
  2. run it and pass in a File (you can use Postman)
  3. See error

Expected behavior

File is received

Current behavior: crash

[Info] PARSING FILE...

CPU time limit reached. isolate: 3328699061268672774
event loop error: Uncaught Error: execution terminated
Error in worker connection: error writing a body to connection: Broken pipe (os error 32)
failed to send request to user worker: connection error: Connection reset by peer (os error 104)
InvalidWorkerResponse: user worker failed to respond
    at async UserWorker.fetch (ext:sb_user_workers/user_workers.js:52:15)
    at async Server.<anonymous> (file:///home/deno/main/index.ts:123:12)
    at async Server.#respond (https://deno.land/std@0.182.0/http/server.ts:220:18) {
  name: "InvalidWorkerResponse"
}
event loop error: TypeError: request body receiver not connected (request closed)
    at async Object.write (ext:deno_web/06_streams.js:954:9)
Error in worker connection: error writing a body to connection: Broken pipe (os error 32)
request failed (uri: "/create_chat" reason: hyper::Error(Io, Os { code: 104, kind: ConnectionReset, message: "Connection reset by peer" }))

System information

  • OS: [macOS]
  • Version of supabase-js: [2.4.0]

Piece of code to extract file from formData:

  console.log('PARSING FILE...')
  const body = ctx.request.body({ type: "form-data" });
  const maxFileSizeForFreeVersion = 15;

  const formData = await body.value.read({
    // Need to set the maxSize so files will be stored in memory.
    // This is necessary as Edge Functions don't have disk write access.
    // We are setting the max size as 10MB (an Edge Function has a max memory limit of 150MB)
    // For more config options, check: https://deno.land/x/oak@v11.1.0/mod.ts?s=FormDataReadOptions
    maxSize: maxFileSizeForFreeVersion * MB,
    maxFileSize: maxFileSizeForFreeVersion * MB,
    bufferSize: maxFileSizeForFreeVersion * MB
  });
  console.log('PARSING FILE - ERROR')

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