added debug json req logging

api/fiscal.go

@@ -95,6 +95,12 @@ func (c *Client) Sell(ctx context.Context, params SellParams) (*SellResponse, er
 		request.Userinfo = *params.Userinfo
 	}
 
+	reqJson, err := json.Marshal(request)
+	if err != nil {
+		return nil, err
+	}
+	fmt.Println(string(reqJson))
+
 	var response SellResponse
 	if err := c.executeRequest(ctx, request, &response); err != nil {
 		return nil, err