From monolith to microservice

Reasons

• Increased security
• Robustness
• Independent scaling of individual microservices
• speed of development

Typical Migration Strategies

• Give a preference to asynchronous communication 

• Give preference to UI integration 

• Avoid synchronous communication 

• Reuse old interfaces? 

• Integrating authentication 

• Replicating data 

• • Replication should be done in one direction 

• Black box migration 

• • Choosing the first microservice for the migration 
  • Analyze the domain logic of the legacy system into bounded contexts.

• Extreme migration strategy: all changes in microservices 

• Further procedure: step-by-step migration