fix: issues

backend/providers/otel/config.go

@@ -51,4 +51,11 @@ func (c *Config) format() {
 			c.Env = "unknown"
 		}
 	}
+
+	if c.EndpointGRPC == "" {
+		c.EndpointGRPC = os.Getenv("OTEL_ENDPOINT_GRPC")
+		if c.EndpointGRPC == "" {
+			c.EndpointGRPC = "localhost:4317"
+		}
+	}
 }

backend/providers/otel/funcs.go

@@ -13,7 +13,7 @@ var (
 )
 
 func Start(ctx context.Context, spanName string, opts ...trace.SpanStartOption) (context.Context, trace.Span) {
-	return tracer.Start(ctx, spanName, opts...)
+	return tracer.Start(ctx, spanName)
 }
 
 func Int64Counter(name string, options ...metric.Int64CounterOption) (metric.Int64Counter, error) {