This C# program demonstrates the usage of both the ScanAPI and REST API's to get warranty status and request an extension for a connected CHS Scanner.
It is built with VS2010 (or higher) due to the usage of the NuGet RESTSharp package. This package should be automatically downloaded from NuGet main repository at nuget.org, but if not, it can be found at: https://github.com/restsharp/RestSharp
Additionally, it utilizes the ScanApiHelper file from the ScanAPI SDK NuGet to faciltate interaction with ScanAPI.
The ScanAPI SDK NuGet is required for this sample. This is a private NuGet that needs to be downloaded from Socket Mobile.
This is intended as a sample only, as all error checking and thread management is not included.
The registration of the scanner requires the scanner Bluetooth address. That's how the scanner is identified in Socket warranty registration database.
ScanApiHelper is actually a data member of the WarrantyChecker Form object. It gets allocated in the Form constructor function. This is also a good place to set the notification reference to this Form which derives from ScanApiHelperNotification.
The ScanApiHelperNotification provides an interface of the possible notifications coming from ScanAPI.
ScanApiHelper is then opens in the Form Load handler. A timer is also set that is used to "consume" any asynchronous events comming from ScanAPI. The handler of this timer just called the function ScanApiHelper DoScanAPIReceive.
The rest of the code is driven by the notifications received from ScanAPI.
The initial state is to wait for a scanner to connect. Once a scanner connects, this app receive the OnDeviceArrival notification. In this notification the request of reading the scanner Bluetooth address is made by calling the ScanApiHelper PostGetBtAddress. This function returns immediately, and the response will be received in the callback passed as argument.
Once the Get Bluetooth address has completed, the callback OnGetBdAddress is called. In this callback the request to get the firmware version of the scanner is made. The Bluetooth address of the scanner is saved in the data member of the Form.
The get scanner firmware version is retrieved in the OnGetFirmwareVersion callback, and again this version is saved in the Form data member.
Once this last callback is received, then the ScanApiHelper is close as it is no longer needed. A thread to check the warranty starts at this point.
The DoWarrantyUpdateThread thread is invoked and proceed by checking the Warranty of this specific scanner. If this check is true, then it proceed to the Warranty extension request.
Both of these request are REST requests. The details can be found in the code behind the Rest.cs Form.