Journey Towards Cloud Architecture

Regular Contributor

In this article, Dan Kim and Phil Jirsa (Microsoft’s Cloud Solutions Architects) highlight the benefits of a modern event-based cloud architecture while migrating a legacy WebAPI to Azure.


Our Story

Our legacy API (Hackathon registration service)

Figure 1Figure 1


The figure above represents the architecture of our original Hackathon Registration service.

It includes the following components:


  • Registration Form — A website which collects registration info from a new hackathon participant.
  • Registration API — An ASP.NET Core WebAPI providing CRUD over the registration data.
  • Registration DB — An Azure SQL Database to persist registration data.

Over time, additional functionality and business logic have been added to the legacy API. Some examples are:


  • Adding a new user to a mailing list service (Mailchimp).
  • Inviting new guest users to an Azure AD tenant.
  • Adding a new user to a Microsoft Teams team and channels.


And more requirements mean more code!


Our technical debt and existing design patterns were making it challenging to adapt to the new requirements.


Read the full article

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