An experiment in modern software design ideas. Explores DDD, CQRS, EventStore, and various approaches to message exchanges. HelloMessage is a simple example that hopefully explores many of the main principles of distributed microservices and messaging using C# in .NET and Microsoft Azure.

Azure functions act as a host for the domain to send, receive, and store the data. AzureFunctionHost is a microservice.

• A Submission is created for a User and submitted to the domain.
• A Submission can be Accepted or Rejected and will be in Pending state until the submission receives a Response.
• An Submission will no not be Pending once an approval or rejection has been applied.
• An Approver can accept or reject a Submission.

Application is the coordinator of the business logic and the first class consumer of the Domain. It provides infrastructure and logic atop of the Domain. Loose coupling and interfaces of the application take dependencies on the infrastructure but do not implement the details directly.

Two endpoints provide the interfaces need to submit and response to submissions.

Submission HTTP endpoints provides a way to send and check the status of Submissions on the host

Approval HTTP endpoitns provide a way to query the pending Submissions as well as accept or reject the requests.

Provides the metal and hardware need to receive, send, and store data.

A console terminal that send submissions to the microservice.

A website to query and approve pending submissions.