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When you're writing code, sometimes you may not even know it's broken or vulnerable until something bad happens. So Manish wrote this guide to help you identify common issues that'll make your code less safe. He talks about missing input validation, poor error handling, no rate…

When you're building an application, different parts need to communicate - both within the app and with the outside world. This is made possible by APIs - and REST has become a popular way to architect your APIs. Here, @KraneOliver teaches you key REST API principles by walking…

Data pipelines let you collect, process, and use huge amounts of data efficiently. But building and maintaining these pipelines can be tricky with API rate limits, changing data schemas, etc. In this in-depth course, you'll learn about data ingestion & normalization, data…

Docker lets you package your app along with all its dependencies into a container. This means your app will run the same on your machine, your coworker's machine, in testing, and in production. In this tutorial, @_udemezue shows you how to Dockerize your Django projects &…

Large Language Models like ChatGPT can help you get a lot done as a dev. For example, creating dynamic user interfaces, navigating through tons of textual data, and more. In this course, you'll learn the basics & how to use LLMs in your coding projects.…

When you're building web apps, performance is a key aspect to consider. After all, you don't want your users leaving before the app finishes loading. Here, @Timi471 teaches you how to optimize your Next.js web apps for better performance. freecodecamp.org/news/optimize-…

Learning about algorithms is a key step in prepping for dev job interviews. And this course teaches you 10 popular ones that often come up in coding challenges. It covers array chunking, max char, fizz buzz, the pyramid string pattern, and more. freecodecamp.org/news/top-10-ja…

Machine learning lineage is a framework that helps you track and understand a ML model's whole lifecycle. It helps with validation, tracing back through changes when models fail, providing proof of training, and more. In this in-depth guide, Kuriko walks you through building an…

When you're building an application, you likely don't want all users to have the same level of access. This is where role-based access control comes in handy. In this guide, @LeomOfThings teaches you how to set up RBAC with custom claims ising Firebase rules.…

This weekend build an MCP server for whatever project you're building right now. freeCodeCamp just published a FREE course that will show you how using the open source FastMCP Python library. 🐍 Here are this week's five freeCodeCamp resources that are worth your time 🏕️ 1.…

Go makes it easy to build APIs that are super fast from the get-go. But as you get more users, Go's natural speed might not be enough - and you'll need to set up caching. In this guide, @t_koded shows you four ways to cache Go API responses for high performance.…

OpenAI just rolled out ChatGPT Apps. They're powered by the new Apps SDK and the Model Context Protocol (MCP). In this tutorial, @wani_shola teaches you how they work. You'll use the ChatGPT apps SDK to build a pizza app, learn about rendering UI widgets, and more.…

Amazon Bedrock AgentCore helps you build and deploy agents securely and at scale on AWS. It works with various frameworks and handles complex tasks like runtime management and IAM role config. In this guide, @EMDADULISLAM580 helps you create and test your agent locally, deploy…

When you're working with Kubernetes, you may want different security rules for different pods. And you can set this up with Security Groups for pods in AWS. In this handbook, @caesar_sage walks you through the whole process and explains the infrastructure, EKS cluster config,…

Dart is the programming language behind Flutter apps, and it's powerful and capable of many tasks. But writing data models by hand can be a repetitive and error-prone process. In this tutorial, @atuohaa shows you how to use a tool called Freezed instead to create immutable data…

In today's coding challenge, you'll create an email validator. Given a string, you'll need to check if it's a valid email address based on certain constraints. Check it out on the freeCodeCamp mobile app.

When you're building an app, keeping your user's data safe should be a high priority. You'll need to consider personally identifying info, financial data, authentication data, and more. In this guide, Alex walks you through some data protection best practices and shares tips…

Dropdowns are helpful little menus that let you show more options without cluttering your screen. They're super useful in websites and apps - and @NoDevAjay shows you how to build one here. He'll walk you through the code and show you how to use shadcn/ui components to simplify…

LLMs are pretty impressive tools - but on their own, they can't "remember" anything. That's where vector stores come in and enhance their capabilities. In this article, Manish explains what vector stores are and how they work, teaches you about embeddings, and more.…

If you're building AI apps, you'll want to make sure they're secure. And in this course, Robert teaches you how to build security right into the apps as you go. You'll learn about how securing AI apps is different from regular apps, how to identify potential weaknesses, how to…