Frontend developer for Tutu.ru, I am engaged in the development of the railway section. I've been working as a layout designer and front-ender since 2008. I love gamedev and pixel art, movies and condensed milk as well.
Tutu.ru develops several products which all have their its own technological stack and unique audience. To quickly and effectively solve the problems of users of each product, it is important to know how the application behaves in a browser. The task to receive and process information in several directions:
— collecting and responding to the client part application errors;
— collection telemetry, i.e. analysis of user behavior on the page and conducting AB campaigns;
— application profiling - collection of performance metrics.
In this report, I will tell you what tool we have developed to address these issues, how it works, what problems we faced and how we solved them.