Codeminer42's Engineering Blog

Database

  • Modeling data with DynamoDB

    · 10 min read · by Gabriel Quaresma

    In this article, we will perform the modeling and queries of a simple e-commerce domain using the NoSQL database, DynamoDB, and address its main concepts. And before we start modeling…

  • Using Docker to instantiate local databases

    · 7 min read · by Pedro Ramos

    From tutorials to enterprise-level software, knowing how to set up a local database instance is a mandatory skill. You’ve probably had to go through tons of installers to instantiate databases…

  • Optimizing Rails API JSON generation

    · 18 min read · by Samuel Flores

    JSON has become a ubiquitous data transfer format for web APIs. Whether you're working on a third-party integration, or endpoints to serve data for rich clients (single page application, mobile…

  • Using ActiveRecord to create atomic transactions

    · 3 min read · by Mauricio Klein

    Imagine the following situation: You were asked to create a new wallet feature to an application. This wallet must allow money transfer between users. Basically, you take money from an…