Why did you decide to migrate from monolith to microservices? Where did you face difficulties?

The decision to migrate from monolith to microservices is usually related to scalability issues, support complexity, and product development.

Main reasons:

• The monolith becomes too large and complex to understand and modify.
• Dependencies between components hinder independent development and deployment.
• Different parts of the system need to be scaled differently.
• The need to accelerate the release of new features and increase stability.

Challenges faced:

• Deployment difficulties: one error in the monolith affects the entire service.
• Slow development cycles due to tight code coupling.
• Restrictions in choosing technologies for different components.
• Scaling problems: it was necessary to scale the entire monolith as a whole.

Migration requires a well-thought-out architecture, automation of CI/CD, monitoring, and management of distributed transactions and data.