Problem appear when i try to Invoke and Edge Function, in fact when i need to select Function from drop down. There is no function and when i hit refresh button next to drop down it gives error:
Hi Zoran, I don’t know much about self hosted supabase, so I asked an AI to help with this answer.
Answer
The most likely issue is that the WeWeb Supabase plugin cannot access the self‑hosted Supabase project metadata (where Edge Functions are listed), even though basic Data/Auth calls work.
Likely root causes
Incorrect or incomplete Supabase project URL for self‑hosted setup
WeWeb’s Supabase plugin expects a valid project URL (the SUPABASE_URL / API URL) that exposes the standard management endpoints used to list Edge Functions. If the user pointed to a different domain (e.g. only the REST endpoint, a proxy, or wrong port), table reads can still work but the “list functions” request can fail with “Error while requesting the supabase project.”
Missing service role key or wrong key type in plugin settings
Listing Edge Functions often requires higher privileges than regular client operations. If the user configured only an anon/public key, the plugin may be able to query tables but fail when calling the admin endpoint to retrieve functions, leading to that specific error when refreshing the dropdown.
CORS / network access from WeWeb to the self‑hosted instance
For self‑hosted Supabase, CORS, firewall, or reverse‑proxy rules may allow standard REST calls but block or misroute the edge‑functions or management path that WeWeb uses to fetch available functions. This would manifest exactly as “no functions in dropdown + error while requesting the supabase project” while Auth still works.
Functions deployed to the wrong project or non‑HTTP edge functions
If the user deployed functions to another Supabase instance or did not deploy HTTP‑accessible Edge Functions on that specific project, the plugin’s request can succeed in structure but return nothing or error, again preventing the dropdown from listing any function.
Thanks for the answer. Supabase data source is reading data from my self-hosted Supabase, so connection is ok. However i was able to call my Edge Function with Rest API Request. If somebody need this here it is:
It would be nice to make the field bindable, or make it a text field instead of select for people who don’t want to connect their Supabase account for some reason - e.g. in this case self-hosting, or something else like lack of trust.
