Monolithic applications have some drawbacks and issues. In particular, when new features are added to the monolithic applications the code bases become bigger. With Microservices such issues can be avoided. Microservices are software architecture that consists of small, distributed services that work together. It has many advantages such as simplicity, independent service scalability, using different technologies and simplicity in deployment, but requires knowledge in distributed systems. In this research, an existing microservice-based application has been monitored and analyzed. The Kieker framework has been used for monitoring the application performance and the Kieker trace analysis tools have been used to analyze the application