Micro Services Architecture

Question

In Microservice Architecture Pattern, How can we generate reporting queries? Because we have different database for every service as in Monolithic we write joins for tables.

Answer 1

In a microservice architecture there are 4 ways this is typically handled. The first 3 are an antipattern called "reach-in reporting." The 4th way is called asynchronous event pushing.

Essentially, in addition to the microservices writing to their respective DBs, each service also pushes an "event" to a data capture service. The data capture service writes to its own DB, which you can then write a reporting service for querying.

You can read more about all 4 options here .