proxy: restrict loading message to /v1/chat/completions

Author: mostlygeek

proxy/process.go

@@ -507,7 +507,10 @@ func (p *Process) ProxyRequest(w http.ResponseWriter, r *http.Request) {
 		// add a sync so the streaming client only runs when the goroutine has exited
 
 		isStreaming, _ := r.Context().Value(proxyCtxKey("streaming")).(bool)
-		if p.config.SendLoadingState != nil && *p.config.SendLoadingState && isStreaming {
+
+		// PR #417 (no support for anthropic v1/messages yet)
+		isChatCompletions := strings.HasPrefix(r.URL.Path, "/v1/chat/completions")
+		if p.config.SendLoadingState != nil && *p.config.SendLoadingState && isStreaming && isChatCompletions {
 			srw = newStatusResponseWriter(p, w)
 			go srw.statusUpdates(swapCtx)
 		} else {