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)
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.