Server Functions body limit

Which project does this relate to?

Start

Describe the bug

the current implementation server function buffer everything in memory since there no body limit like next.js server action this allow any user to upload large payloads to any server function POST endpoint. if dev not handled this properly this can cause OOM if self-hosted

Your Example Website or App

https://tanstack.com/_server/app_utils_config_ts--getTanstackDocsConfig_createServerFn_handler?payload=%7B%22data%22%3A%7B%22repo%22%3A%22tanstack%2Frouter%22%2C%22branch%22%3A%22main%22%2C%22docsRoot%22%3A%22docs%2Fstart%22%7D%2C%22context%22%3A%7B%7D%7D&createServerFn

Steps to Reproduce the Bug or Issue

send large payloads (binary, form data, etc.) to any server function endpoint

Expected behavior

abilty to set body limit globally and per server function

Screenshots or Videos

test upload 100MB file to tanstack.com server function endpoint

Platform

• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Version: [e.g. 91.1]

Additional context

No response

No file or test is named in the issue. Start by locating the server function POST endpoint and its request-body handling, then reproduce the behavior with a large payload. Done means server functions enforce a configurable global body limit and allow a per-function limit.