A complete guide to a scalable app in Flutter — Part 2 — Data layer

Giovanni Accetta
16 min readOct 7, 2023

Welcome back! If you missed the first part of this guide, no worries — I’ve created a series of articles that constitute a comprehensive course on crafting a scalable app with a clean architecture, one that’s easy to maintain and test. In this practical article, we’ll roll up our sleeves and start constructing our app, following the blueprint we laid out in the previous installment.

As previously mentioned, our app’s purpose is simple: to serve as a platform for showcasing a Medium user’s RSS feed. Our primary objective at this stage is to establish a robust and efficient data layer that will form the bedrock of our project. So, without further ado, let’s dive right into the development process!

If you missed PART 1 about the architecture, you can read it here.

Today, our focus will be on the data layer, and our goal is to construct our first model, create the corresponding interactor, and develop a module for fetching data from the Medium RSS feed (utilizing an API service).

Photo by Andy Hermawan on Unsplash

Our first model: Article

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Giovanni Accetta

Senior Mobile Developer 🧑‍💻 and freelancer 🚀 with 360 experience on mobile apps lifecycle 📱! Always happy to talk tech 💻, photography 📷 and travel ✈️!