[FunctionName("PostQuestion")]
public static async Task<IActionResult> RunPost([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = null)]
                                                HttpRequest req,
                                                 ILogger log)
  {
            log.LogInformation("Posting to Quiz Questions");
            var content = await new StreamReader(req.Body).ReadToEndAsync();
            var newDocument = JsonConvert.DeserializeObject<Quiz>(content);
 
            ResourceResponse<Document> createdDocument = null;
            var docDbEndpoint = Environment.GetEnvironmentVariable("DocumentsDbEndpoint");
            var docMasterKey = Environment.GetEnvironmentVariable("DocumentsKey");
            var collectionUri = UriFactory.CreateDocumentCollectionUri("QUIZDB", "QUIZContainer");
            using (var client = new DocumentClient(new Uri(docDbEndpoint), docMasterKey))
            {
                createdDocument = await client.CreateDocumentAsync(collectionUri, newDocument);
            }
 
            return new OkObjectResult(createdDocument.Resource);
 }