supabase / supabase-swift / 25054157007

Pull #917

github

feat(functions): functions v3 (#923)

* feat(helpers): add _HTTPClient with RequestBody and separate query/body params

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(helpers): add TokenProvider support to _HTTPClient

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor(helpers): stream UInt8 bytes instead of single-byte Data chunks

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(functions): migrate to _HTTPClient, remove old HTTP layer from Functions

- Replace HTTPClientType/HTTPClient/FetchHandler with _HTTPClient
- FunctionInvokeOptions.headers and query now use [String: String]
- _invokeWithStreamedResponse is now async throws
- SupabaseClient passes session + tokenProvider to FunctionsClient
- Remove RequestTests.swift (covered by inline snapshots in FunctionsClientTests)
- Add package access modifiers to _HTTPClient types

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor(functions): convert FunctionsClient to actor, simplify streaming API

- Convert FunctionsClient from Sendable class with LockIsolated to actor
- Replace _invokeWithStreamedResponse (URLSessionDataDelegate-based) with
  invokeStream returning AsyncThrowingStream<UInt8, any Error> via _HTTPClient
- fetchStream now async throws and returns (stream, HTTPURLResponse) tuple,
  allowing pre-stream validation (errors thrown before stream is returned)
- Remove StreamResponseDelegate class
- Set session timeout via configuration instead of per-request
- Fix relay error header name typo (x-relay -> x-relay-error)
- Update FunctionsClientTests and SupabaseClient for actor isolation

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(functions): catch HTTPClientError and convert to FunctionsError in rawInvoke

_HTTPClient.fetchData now throws HTTPClientError.responseError on non-2xx
responses. FunctionsClient.rawInvoke catches it and converts to the
public FunctionsError.httpError type.

Co-Authored-B... (continued)

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