What approaches can be used to split a monolithic application into separate microservices?

Breaking down a monolithic application into microservices can be done using the following approaches:

• By business domains (Domain-Driven Design): allocate separate services for each business area, such as users, orders, payments.
• By functionality: divide the application into services, each responsible for a specific function (authentication, notifications, etc.).
• By data: allocate services that manage separate sets of data or tables.
• By load and scalability: identify hot spots that require separate scaling.

Important:

• Define clear APIs for interaction between services.
• Ensure independent deployment and testing.
• Consider data migration and transaction strategies.

Example: If the monolith has an orders module and a users module, they can be separated into individual microservices with REST APIs, allowing them to develop and scale independently.