Configure a web service

Create a configuration file with the details the Genero Application Server needs to deliver the web service to client applications.

The configuration file for a web services is very similar to that used for applications.

For the purposes of this quick start, you can create a custom configuration file for the Calculator web service located in your $FGLASDIR/demo/WebServices/calculator/ directory.

Create a new directory (for example, you can name it "calculator_config") on your disk where you will store the Calculator web service runtime files.
Copy all the files from $FGLDIR/demo/WebServices/calculator/server to your new local directory.
Create a minimal configuration file for your Calculator web service. Provide a path to the location of your compiled application files in the PATH element, and in the MODULE element specify the module required to launch your web service.
Use a text editor or if you are using Studio, go to File >> New >> Web/AS >> Application Configuration (.xcf).
```
<?xml version="1.0" encoding="UTF-8" ?>
<APPLICATION Parent="ws.default" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:noNamespaceSchemaLocation="http://www.4js.com/ns/gas/5.00/cfextws.xsd">
 <EXECUTION>
   <PATH>path_to_your_local_directory</PATH>
   <MODULE>CalculatorServer.42r</MODULE>
 </EXECUTION>
</APPLICATION>
```
Where:
- In the Parent attribute, you reference ws.default, which is the default configuration for web service applications.
- In the PATH element, you provide an absolute path to the location of your compiled application files.
- In the MODULE element, you specify the module required to launch your application.
To test, save the web service configuration file in a GAS services group directory.

You can save the mycalculator.xcf in the default service group, appdata/services directory (On Linux/UNIX: $FGLASDIR/appdata/services, on Windows®: C:\ProgramData\FourJs\gas\gas_version\services ), or in your own defined group. Alternatively, you can deploy the service.

You have successfully configured an application.