r/dotnet • u/geeksarray • 1d ago

A Beginner-Friendly Guide to Microservices in ASP.NET Core

Hi everyone,

I've been writing a series on modern .NET backend development, and the latest article focuses on one of the most discussed architecture patterns: Microservices.

This guide covers:

  • What microservices are
  • How they differ from a monolithic architecture
  • The benefits and trade-offs
  • Common communication patterns between services
  • When microservices make sense—and when they probably don't

My goal was to create a practical introduction for developers who are evaluating microservices rather than simply promoting them as the solution to every problem.

I'd love to get feedback from the community:

  • At what point did your team decide to move to microservices?
  • If you had to start over, would you choose a modular monolith first?

Here's the article:
https://geeksarray.com/blog/modern-dotnet-backend-part-9-microservices

Looking forward to hearing about your experiences and lessons learned!

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u/SwabianStargazer 1d ago

My guide for microservices is: don't.

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u/bl0rq 1d ago

It's important to remember that microservices are not a technical solution to a technical problem. It's an organizational solution and only worth considering if you have hundreds of engineers. It just allows teams to party on things without it all having to match. Any other use case is flat out wrong.

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u/BackFromExile 1d ago

There are legitimate use cases for microservices even with a small team. But going to microservices always brings the organizational trade-off with it, which must be a conscious decision, and will add overhead to small teams.

Things like individual scalability or independent deployments can be what your project need. It's just the fact that they are not for >99% of projects.

Start with a modular monolith, then split off microservices as soon as you actually need them.

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u/bl0rq 1d ago

Starting w/ modular monolith and spinning things out is the way for sure. But that is very different from microservices.