Supabase invoke function doesn't handle custom error status code

[Dramelac]

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

When using supabase_client.functions.invoke("function-name") and the edge-function return a custom error code like 403 with a body like {"error":"Unauthorized"}, the raised exception override the status code to 400, only the error message can be retrieved from the original server response.

In more details:
The function-py sub-lib raise a FunctionsHttpError here when the response is not 200 (as expected):

functions-py/supabase_functions/_sync/functions_client.py

Line 57 in 082653b

raise FunctionsHttpError(

But the FunctionsHttpError have an hardcoded status code of 400 here:

functions-py/supabase_functions/errors.py

Line 32 in 082653b

400,

To Reproduce

Create an edge-function that return a custom error code and invoke it from supabase-py lib:

return new Response(JSON.stringify({error: "Unauthorized"}), {
    status: 403,
    headers: {"Content-Type": "application/json; charset=utf-8"}
});

Expected behavior

The FunctionsHttpError exception should be configured with the real status code from the edge-function response.

Screenshots

System information

• Version of supabase-py: 2.13.0
• Version of supabase-edge-runtime: 1.67.0