As part of GrokOla, members can receive access to exclusive development education content.
This content is created by Keyhole Labs technical experts and includes formal courses, primers, tutorials, and presentations. While nearly all of this educational content is only available via private GrokOla instance, we have released a few public tutorials that we would like to share with you so you can see how easy it is to share content on GrokOla. Enjoy!

New: GrokOla Mobile has been released into the Android Play Store and Apple App Store. Access all free GrokOla tutorials from your mobile device.

GrokOla Public Tutorials

TypeScript Primer

This eight-part primer introduces beginning and advanced concepts TypeScript. View the primer on public GrokOla here.

Spring Batch Primer

This eleven-part primer introduces beginning and advanced concepts of the Spring Batch framework through a reference implementation. View the primer on public GrokOla here.

“Gang of Four” Design Pattern Primer

Gang of Four” was a seminal piece of work that helped introduce Object-Oriented to the software development world. In this primer, we have updated the GOF patterns to modern Java. Understanding these design patterns will help your software designs, especially if you are new to Object-Oriented programming. View the primer on public GrokOla here.

Backbone.js Primer

This eight-part primer provides an introduction to elements and concepts of the Backbone.js framework. View the primer on public GrokOla here.

Implementing a RESTful API Using Spring MVC Primer

This primer demonstrates how a RESTful JSON API layer can be implemented using Spring MVC. View the primer on public GrokOla here.

Java Lambdas Primer

Three-part introduction to Java Lambdas, including implementation, how they work, and using the :: operator for method references. View the primer on public GrokOla here.

Introduction to JavaScript Primer

12-part primer that introduces beginning and advanced JavaScript programming features and concepts.
View the primer on public GrokOla here.

Introduction to Node.js Primer

Eight-part primer that introduces Node.js, its structure, installation, event handling, npm, and more. View the primer on public GrokOla here.

MongoDB Primer

This primer covers creating MongoDB database collections and adding and querying documents. View the primer on public GrokOla here.

Introduction to Siege Primer

Four-part primer that introduces the versatility of the utility, show its use on an example website, and the installation process. View the primer on public GrokOla here.