Code & QA Zone: Tutorials, Tools, Guides & Tips for Developers & Testers

How to Fix data types don't match (LIST:MAP) Error in Karate DSL

If you happen to run into the "data types don't match (LIST:MAP)" error while validating schemas in Karate DSL, this post is for you. We'll break down why this occurs and how to fix it in seconds. The Problem: Why Is My Test Failing? Imagine you have an endpoint that returns a list of ...

Top Free Public APIs for Your Next Project (2026)

One of the smartest ways to speed up project development is by using Free APIs. APIs are essenti ...

GraphQL Key Components Explained

If you’re new to GraphQL, check out our previous post [**GraphQL Essentials: What It Is, How It Work ...

GraphQL Essentials: What It Is, How It Works and When to Use It Instead of REST

Modern applications consume data from many sources and serve multiple clients like web, mobile, and ...

SQL JOINs Explained With Diagrams

Understanding SQL joins is one of the most important skills when working with relational databases. ...