CODEWITHSUNDEEP
serverlesssupabase
Winter Tribute
Winter Tribute

Reputation: 21

Basic Supabase edge function throws error

I am currently trying my hand with Supabase's edge functions. I don't know anything about this area, so I tried the quickstart tutorial first. I created the simple "hello-world" function (from the documentation https://supabase.com/docs/guides/functions/quickstart) and tried to call it from my java script code. I have turned off the JWT verification. But when I call the function I always get "FunctionsFetchError" back. In the dashboard the error looks like this:

Log Event Message
SyntaxError: Unexpected end of JSON input
at parse ()
at packageData (ext:deno_fetch/22_body.js:362:14)
at consumeBody (ext:deno_fetch/22_body.js:239:12)
at async Server. (file:///src/index.ts:7:23)
at async Server.#respond (https://deno.land/[email protected]/http/server.ts:221:24)

If you want to try it yourself: https://gwhzelyucjyglpyptrox.functions.supabase.co/hello-world

I didn't change anything at all in the code of the example function, but still can't get it to work.

Upvotes: 1

Views: 2317

Answers (1)

Wailstone
Wailstone

Reputation: 21

I had the same issue. Finally I figured out that is because the request has been consumed during the OPTION check request.

To avoid this error:

   serve(async (req) => {

  if (req.method === 'OPTIONS') {
    return new Response('ok', { headers: { ...corsHeaders }, status: 200 })
  } 
  // send a response to the OPTION request before you use the req object.


  const origin = req.headers.get('Origin')
  console.log('origin is :', origin)
  const { test } = await req.json()
  // Now you can consume the req object and do your things.

Upvotes: 2

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