Today we are going to walk you through the process of allowing users to register and log into your app using their Google account. The best way to showcase this is to walk though the Registration and Login example app available in the Code Generation section of your Backendless Console.
Today, we are going to look at a useful and interesting, but hidden, feature of Backendless. Some features like these are not covered in the documentation, so they are not recommended for use in production because they are not supported and there is no guarantee that their implementation will not change. Still, these features can be very helpful during initial development. Using these features is not for the faint of heart!
Today we are going to demonstrate how to create a simple event handler to track subscriber statistics on your various messaging channels. This gives you the ability to easily track the number of subscribers for each of your channels to help you manage channel load and gauge user interest in specific topics. Used in combination with API usage tracking, you will have a great sense of what your users are doing within your app.
To start, we will create a new application and call it Messaging_Statistics.
When analyzing data, you may need to know the average salary of all employees, the quantity of goods in stock, the number of individual items in stock, the maximum or minimum cost, and so on. These tasks are easily handled with aggregate functions. Aggregate functions perform calculations using the values in a column in order to obtain a single resulting value.
Backendless supports several aggregate functions, such as: