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Try the simplest piece of code possible
To verify that the Royale SDK is set up correctly, we recommend you create and build a “Hello World” example. If that works, you can move on to Create an Application and work through the tutorial on building a more substantial application.
These instructions presume you are not using an IDE, but are creating files in a text editor and compiling using command-line scripts or similar controls. Development tools that fully support Royale provide their own instructions for building your first Royale applications.
In our Apache Royale Blog Examples, you can read about the ‘Hello World’ example to complement the information exposed here. Notice that the main difference is that while in this Hello World we use the Express library, in the blog example we use the Basic version that requires a few more lines of code.
Create the project folders
Create or select a folder to hold this application’s source and output.
In that top-level folder, create a folder called (it can be named something else if you want, and the name can contain spaces). This folder will be referred to as the folder throughout the documentation.
In the project folder, create a folder called . You can use other names, but the compiler will manage your output folders for you if you use or ( on Windows).
So, if you used a folder called for all of your project folders, then you would have the following folders:
Create the source file
In the folder, create a file called and use your favorite text editor to give that file the following contents:
Compile the source file
If you used NPM to install Royale, run from your project folder:
If you didn’t use npm, run:
Run the output
If the compiler reported success, there should now be a output folder in your project folder, such as
In that folder should be an file you can open in your browser to see your “Hello World” application. If you see that, congratulations! You have installed Royale successfully and are ready to build Royale applications.
Create an Application contains a tutorial for building a more substantial application. The Royale SDK includes an Examples directory that provides practical demonstrations of how to achieve many features and effects using Royale.