TABLE OF CONTENTS

• Introduction
• Technology Stack
  • Frontend
  • Backend
  • Data
• Deployment Architecture
• Logical Architecture

Introduction

Znode is a .NET platform composed of 4 separate ASP.NET web applications hosted by IIS.

1. Znode Api
2. Znode Admin UI
3. Znode Web Store UI
4. Znode Payment API

Technology Stack

All application code (excluding the UI) is written in C#.

Frontend

The Znode frontend consists of two separate MVC applications, the Admin UI and the WebStore.

• ASP.NET C# MVC

• Razor view templates

• Primarily server-side rendered pages

• Ajax data interactions

• Acts as API Gateway

Backend

The Znode backend is a single WebAPI application, known in the code, simply as the API.

• ASP.NET C# WebApi

• API resources = Controller classes

• API endpoints = Controller methods

• Entity Framework for easy SQL DB CRUD

• Autofac for dependency injection

Data

Znode persists data to 3 types of database systems, SQL Server, MongoDB, and Elasticsearch.

• SQL Server

  • Normalized system of record for everything

  • Contains source data to recreate MongoDB and Elasticsearch data

• MongoDB

  • Stores denormalized products and content for speed and scale

• Elasticsearch

  • Supports product search

Deployment Architecture

This diagram shows what a typical Znode deployment looks like.

Logical Architecture

This diagram shows a different view of the system, emphasizing the strict layering of responsibilities.