Johann du Toit

Config management with built-in encryption that allow developers to store app secrets encrypted in the same repo. Secrets are encrypted using AES that has the key protected using a generated private key of each user.

Along with simple storing and retrieving secret, the tool allows rendering directly to any templates given. Examples of these might include Google App Engine's app.yaml, where the environment variables are populated from the secret store.

Site dedicated to crawling online retailers and universities such as Unisa to match prescribed books, give listings with direct links and help users find the cheapest prices for the books. Idea is to work in numerous other sites such as Gumtree and more.

Developing web applications that serve millions of users is no easy task, as it involves a number of configurations and administrative tasks for the underlying software and hardware stack. This whole configuration requires not only expertise, but also a fair amount of time as well. Time that could have been spent on actual application functionality.

Google App Engine allows you develop highly scalable web applications or backends for mobile applications without worrying about the system… Show more

Developing web applications that serve millions of users is no easy task, as it involves a number of configurations and administrative tasks for the underlying software and hardware stack. This whole configuration requires not only expertise, but also a fair amount of time as well. Time that could have been spent on actual application functionality.

Google App Engine allows you develop highly scalable web applications or backends for mobile applications without worrying about the system administration plumbing or hardware provisioning issues. Just focus writing on your business logic, the meat of the application, and let Google's powerful infrastructure scale it to thousands of requests per second and millions of users without any effort on your part.

This book takes you from explaining how scalable applications work to designing and developing robust scalable web applications of your own, utilizing services available on Google App Engine.

Starting with a walkthrough of scalability is and how scalable web applications work, this book introduces you to the environment under which your applications exist on Google App Engine. Next, you will learn about Google's datastore, which is a massively scalable distributed NoSQL solution built on top of BigTable. You will examine the BigTable concepts and operations in detail and reveal how it is used to build Google datastore. Armed with this knowledge, you will then advance towards how to best model your data and query that along with transactions. To augment the powerful distributed dataset, you will deep dive into search functionality offered on Google App Engine. With the search and storage sorted out, you will get a look into performing long running tasks in the background using Google App Engine task queues along with sending and receiving emails. You will also examine the memcache to boost web application performance, image processing for common image manipulation tasks. Show less

Receive a SMS every morning if any of your areas are scheduled for loadshedding, and only if any of your areas will be affected. The service will also update with a SMS during the day if the stage changes.

Like a lot of folks who want to prepare themselves fro the looming power cuts, Google developer and Cape Town resident Johann du Toit headed over to his local municipality’s site to look up load shedding schedules. And like a lot of folks who do that he discovered that finding the information he wanted was… not easy. So to help those who follow in his footsteps, he’s built an interactive map fellow Capetonians so that they can look up affected areas and times and figure out what localised… Show more

Like a lot of folks who want to prepare themselves fro the looming power cuts, Google developer and Cape Town resident Johann du Toit headed over to his local municipality’s site to look up load shedding schedules. And like a lot of folks who do that he discovered that finding the information he wanted was… not easy. So to help those who follow in his footsteps, he’s built an interactive map fellow Capetonians so that they can look up affected areas and times and figure out what localised warnings mean for them.

Was featured on a few blog posts with the best being http://www.htxt.co.za/2014/06/13/load-shedding-in-cape-town-an-interactive-map-of-where-and-when/ for me.

Also got coverage on local radio stations:

soundcloud.com/johann-du-toit/johann-du-toit-smile-fm-904fm-thu-082102-to-082822

and on tv:

https://www.youtube.com/watch?v=0qjjMBBg3Wc&feature=youtu.be Show less

My latest project that makes local simple to use custom built network routers talk to the app on App Engine. Should be ready in a few months. Using G+ for social hotspots.

The website allows users to add complaints or compliments about breeders. This then allows users to view the rating of the breeder they are buying and allow them to make a smart choice. The site has seen several victories with bad breeders even being called out and banned. Using Ads from Google

After building GetMeKnown I saw a real need for a unified search engine for Microchip providers. Where one search engine would search all microchips providers and be able to provide law enforcement and the providers logs from where and when searches took place. I built this and won a award from the Google Apps Cloud Challenge 2012. The site had some interest from local government and created a API for developers.

E-Commerce Website and System for future projects. The site itself was built for Animal Products

The first paperless solution to Microchipping in South-Africa. The site started small but is currently one of the four national databases and growing by a few hundred records every day. I both developed and maintain it. Using Google Maps / Charts in the backend.

Curriculum Vitae is a service to provide a Way for Users to have a Resume online and generate professional resumes in one click without the need to know anything about CV. While at the same time give recruiters the ability to search candidates based on that information.

Created by one developer who was updating his CV one day and found that the entire process was just too much work. So he had a Idea.

The Idea ? Allow Users to Maintain a Single Repository of Data for CV's
Sounds… Show more

Curriculum Vitae is a service to provide a Way for Users to have a Resume online and generate professional resumes in one click without the need to know anything about CV. While at the same time give recruiters the ability to search candidates based on that information.

Created by one developer who was updating his CV one day and found that the entire process was just too much work. So he had a Idea.

The Idea ? Allow Users to Maintain a Single Repository of Data for CV's
Sounds weird but thats it. By giving users one location where they can manage and update their information it gives provides a lot of functionality and integration possibilities.

Recruiting Company A decides they want to find their perfect candidate. In the past they used to have a couple of options like posting a job on various sites and hoping a candidate find the post or paying to browse users online and hoping they will respond.

Now we gave them 2 new ways of looking for Candidate. Both of which are free till they find their candidate. One Solution is to Filter for Candidates on the Site and look for the perfect one that will fit the requirements. Or do a Job Post and filter using that Job Post or wait for candidates to find the Job Post based on their profile and apply for the Job.

Stills sounds like a solution for this exists ? Take this example: Show less

Makes managing SSL certificates. By having a system that handles most of the load for the key generation and ordering in the backend. With a easy and efficient UI that won't fight you.

Using App Engine I attempted to make a better way to view train / bus schedules in Cape Town. Also providing a API to developers. Built on AppEngine and using Cloud SQL along with Google Maps.