public AlexaFunction(IAlexaRequestVerifier reqVerifier, IAdventureSampleProcessor adventureProcessor)
{
_reqVerifier = reqVerifier ?? throw new ArgumentNullException($"{nameof(reqVerifier)} cannot be null");
_adventureProcessor = adventureProcessor ??
throw new ArgumentNullException($"{nameof(adventureProcessor)} cannot be null");
}
private async Task SendAlexaRequestAsync(HttpRequest req, ILogger logger, IAlexaRequestVerifier alexaVerifier, IAdventureSampleProcessor advSampleProcessor)
{
try
{
IActionResult res = await AlexaFunction.Run(req, logger, alexaVerifier, advSampleProcessor);
ProcessActionResult(res);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
throw;
}
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log,
[Inject] IAlexaRequestVerifier alexaVerifier,
[Inject] IAdventureSampleProcessor adventureProcessor)
{
log.LogInformation("C# HTTP trigger function processed a request.");
string textContent = null;
//IServiceProvider servProv = _serviceProvider.Value;
//IAlexaRequestVerifier alexaVerifier = servProv.GetRequiredService<IAlexaRequestVerifier>();
bool isValid = false;
try
{
isValid = await alexaVerifier.IsCertificateValidAsync(req);
}
catch (Exception ex)
{
log.LogError(ex, "Error processing certificate");
}
if (!isValid)
{
return(new BadRequestResult());
}
AlexaRequest alexaRequest = null;
try
{
using (StreamReader sr = new StreamReader(req.Body))
{
//This allows you to do one Read operation.
textContent = sr.ReadToEnd();
}
alexaRequest = JsonConvert.DeserializeObject <AlexaRequest>(textContent);
}
catch (Exception ex)
{
log.LogError(ex, $"Error processing alexa request: {textContent}");
}
if (alexaVerifier.IsRequestValid(alexaRequest))
{
var alexaResponse = await adventureProcessor.ProcessAdventureRequestAsync(alexaRequest);
return((ActionResult) new OkObjectResult(alexaResponse));
}
else
{
log.LogError($"Alexa request is not valid: {textContent}");
}
return(new BadRequestResult());
}
public AlexaRequestVerification(RequestDelegate next, IAlexaRequestVerifier alexaCertVerifier)
{
_next = next;
_certVerifier = alexaCertVerifier;
}
