booking-modular-monolith
A practical Modular Monolith architecture with the latest technologies and architecture like Vertical Slice Architecture, Event Driven Architecture, CQRS, DDD, gRpc, Masstransit and Aspire in .Net 9.
dockerkubernetestemplateboilerplateoauth2cqrsdotnetaspnetcoreddddotnetcoremessaginggrpc
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Overview
This is a production-ready boilerplate for building modular monolith applications in .NET 9, demonstrating advanced architectural patterns including Vertical Slice Architecture, Domain-Driven Design, CQRS and Event-Driven Architecture.
Features
vertical-slice-architecturedomain-driven-designcqrsevent-driven-architectureevent-sourcinggrpcinbox-patternoutbox-patternminimal-apiopenapihealth-checksdistributed-tracingmodular-designloose-coupling
Feature Flags
userDashboardauthenticationsubscriptionsblogecommerceauthorizationteamsOrgsnotificationsapiDocscachingformsValidationeventDrivencqrseventSourcinggrpcmessaginghealthChecksopenapidistributedTracingmonitoringloggingdockerkubernetes
Recommended Use Cases
medium-to-large-projectsgrowing-complexity-applicationsmaintainability-focused-teamsmicroservices-preparationsmall-to-medium-teams
Frontend
None
Backend
aspnetcoredotnet-9csharpmasstransitmediatrfluent-validationpollyyarpgrpc-dotnet
Auth Providers
identityserveroauth2
Deployment Targets
renderdockerkubernetes
Payment Providers
None
Quick Facts
⭐ Stars
415
🍴 Forks
77
🧾 License
mit
🔄 Active
Yes
🕒 Last Commit
2025-10-09T12:51:50.000Z
Stack
Framework
aspnetcore
Language
csharp
Database
postgresql, mongodb, eventstore
Auth
identityserver, oauth2, openid-connect
ORM
ef-core
Testing
xunit, nsubstitute, testcontainers
Monitoring
opentelemetry, prometheus, grafana, jaeger
Logging
serilog, kibana
CI
docker, kubernetes
Data Layer
Databases
postgresql, mongodb, eventstore
ORM
ef-core
UI Stack
Developer Experience
Docker
Yes
Tests
Yes
Quickstart
Yes
env.example
Yes
CI
docker, kubernetes
Pricing
Classification
free
Selected
—
Notes
Open source project under MIT license