About

Project created for a challenge, consuming the Mempool API to get the top 100 best connected nodes of the lightning network.

The project follows the most common architecture and library recommendations for Android development using Jetpack Compose. The general architecture is based on the architecture guide and MVI.

📝 Features

In addition to what was requested, the app has some other basic features, such as:

• Change the order of the node list according to the number of channels, capacity or update date;
• Display the country's flag image using Flagpedia;
• Switch between a dark and light theme.

💭 Points to improve

There are some points that could be improved in the project, but that I ended up not implementing. For example:

• The date/time formatting and bitcoin conversion could be done in the ViewModel using a specific Node class for the UI layer, making the Composables use the data already processed, with the capacity and firstSeen fields already converted, for example.
• The date and time conversion could have better formatting. For example: "1h ago (full date)".
• The conversion of satoshis to bitcoins should consider the device's language to display a period or a comma. For example: 0.10000000 (en locale) and 0,10000000 (pt locale).
• When obtaining the translation of the city and country, it should consider the device's language at the time and check if there is a translation for that language.
• It is possible to copy the public key of the node with a long click, but this UX could be improved.
• An option to display in grid mode would be nice.
• Create a shimmer effect instead of a simple standard loading.

📱 Download app

To test the app, download the apk from the releases.

🛠️ Libraries used

• Retrofit: API consume.
• Dagger-Hilt: Dependency injection.
• Landscapist: Load images from web.
• Lottie Compose: Load Lottie animations.