# Implement CQRS Pattern using MediatR Library
Date: 2023-05-06
# Status
Accepted
# Context
The application requires a way to separate read and write operations to optimize performance, scalability, and maintainability. The CQRS (Command Query Responsibility Segregation) pattern addresses this need by separating the read and write models of the application.
# Decision
We have decided to implement the CQRS pattern using the MediatR library. MediatR provides a simple and elegant way to implement the mediator pattern, which facilitates the communication between the different layers of the application.
# Consequences
By implementing the CQRS pattern using MediatR, we expect to:
- Improve the performance and scalability of the application by optimizing read and write operations separately
- Simplify the codebase by clearly separating the concerns of reading and writing data
- Facilitate easier maintenance and testing of the application
However, implementing CQRS may introduce additional complexity to the codebase, and developers will need to be familiar with the MediatR library and its usage.
# References
- CQRS Pattern: https://martinfowler.com/bliki/CQRS.html
- MediatR Library: https://github.com/jbogard/MediatR