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Toptal Engineering Blog

The Toptal Engineering Blog is a hub for in-depth development tutorials and new technology announcements created by professional software engineers in the Toptal network.

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Launching a Spring Boot Application Programmatically

by Igor Delac

Starting a Spring Boot application in the command line is as simple as it gets. But what if we want to run our application from another Java program? In this article, Toptal Java Developer Igor Delac demonstrates how you can start a Spring Boot app programmatically using just a few lines of code.

5 minute readContinue Reading
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Serializing Complex Objects in JavaScript

by Luke Wilson

The Tanagra.js library is designed to be simple and lightweight, and it currently supports Node.js and ES6 classes. The main implementation supports JSON, and an experimental version supports Google Protocol Buffers.

7 minute readContinue Reading
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Optimizing Retailer Revenue with Sales Forecasting AI

by Ahmed Khaled

Retailers often face supply and demand issues that cause them to miss out on potential sales or tie up a lot of money in overstocked products. In this article, Toptal Data Scientist Ahmed Khaled explains how retailers can boost revenues and cut costs with sales forecasts backed by artificial intelligence.

9 minute readContinue Reading
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K8s/Kubernetes: AWS vs. GCP vs. Azure

by Guillaume Dury

Kubernetes ("K8s") won the battle of container orchestration tools. Now AWS, Azure, and Google Cloud each offer a managed Kubernetes version. How do they compare?

11 minute readContinue Reading
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API Development in Go Using Goa

by Gleidson Nascimento

Your code is described in your API definition using a Golang Domain Specific Language (DSL), then generated using the Goa CLI, and implemented separately from your application source code.

17 minute readContinue Reading
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Embeddings in Machine Learning: Making Complex Data Simple

by Yaroslav Kopotilov

Working with non-numerical data can be challenging, even for seasoned data scientists. To make good use of such data, it needs to be transformed. But how? In this article, Toptal Data Scientist Yaroslav Kopotilov will introduce you to embeddings and demonstrate how they can be used to visualize complex data and make it usable.

11 minute readContinue Reading
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How to Build a Node.js Error-handling System

by Jay Huang

Node.js developers often find themselves working with chaotic code that’s anything but clean. This can obviously cause productivity issues and outright errors. In this article, Toptal Full-stack Developer Jay Huang will introduce you to error-handling in Node.js and demonstrate how you can build a robust error-handling system yourself.

7 minute readContinue Reading
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Full User Authentication and Access Control – A Laravel Passport Tutorial, Pt. 1

by Layo Folaranmi

Setting up authentication and state in a stateless API context might seem somewhat problematic. But Laravel Passport gives developers a clean, straightforward way to add OAuth 2.0 to an app's API.

13 minute readContinue Reading

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