static string GetDeviceToken(string iothubHostName, string deviceId, string moduleId, string key)
{
DateTime startTime = DateTime.UtcNow;
string audience = WebUtility.UrlEncode($"{iothubHostName}/devices/{deviceId}/modules/{moduleId}");
string expiresOn = SasTokenHelper.BuildExpiresOn(startTime, TimeSpan.FromHours(1));
string data = string.Join("\n", new List <string> {
audience, expiresOn
});
string signature = Sign(data, key);
return(SasTokenHelper.BuildSasToken(audience, signature, expiresOn));
}
public void BuildSasTokenTest()
{
// Arrange
string audience = "testIotHub.azure-devices.net%2Fdevices%2Fdevice1%2Fmodules%2Fmodule1";
string signature = Guid.NewGuid().ToString();
string expiry = "1546304400";
string expectedToken = $"SharedAccessSignature sr=testIotHub.azure-devices.net%2Fdevices%2Fdevice1%2Fmodules%2Fmodule1&sig={signature}&se=1546304400";
// Act
string sasToken = SasTokenHelper.BuildSasToken(audience, signature, expiry);
// Assert
Assert.Equal(expectedToken, sasToken);
}