This application can chat with people who visited your facebook page using Facebook Messenger Platform API.

Only a few steps are needed to use the searching movies API of YouTube and show results of it.

It is really tedious to implement a function like a login-logout. We want to let someone handles it, aren’t we?

LINE is a popular messaging application in Japan or another countries. LINE also provides business account and WebAPIs to enable you to use LINE in your business.

There are many services that share photos. It is good to know how to implement an image search function in your SPA.

Many of you have experience uploading photos to Facebook. And you notice that Facebook shows who is on the photos.

Slack Receive Event and Dashboard Template help you to handle events of Slack and display charts.

Everyone loves to chat. When you do one, it’s fun. But when you build the application, it is not as easy as you think.

Even if an application simply shows results of search on Wikipedia, it seems like a lot of work to build one. But it’s easy if you use K5 Playground. See this tutorial and you’ll get it done in 30 minutes.

This application displays images of Instagram into Google Maps. You can launch it immediately with this tutorial.

Before cloud era, implementing a payment function was really hard, but now it’s really easy by Payment as a Service. In this tutorial, I explain how to develop a basic shopping service with PayPal.