private static async Task <Rating> GetDocumentAsync(string ratingId)
{
var documentClientDetails = await DocumentDbClientFactory.GetRatingsClientAsync();
var docUri = UriFactory.CreateDocumentUri("IceCreamApp", "Ratings", ratingId);
return(await documentClientDetails.DocumentClient.ReadDocumentAsync <Rating>(docUri));
}
private static async Task <Rating> CreateRatingAsync(Rating rating)
{
var documentClientDetails = await DocumentDbClientFactory.GetRatingsClientAsync();
var document = await documentClientDetails.DocumentClient.CreateDocumentAsync(documentClientDetails.DocumentCollectionLink, rating);
return((Rating)((dynamic)document.Resource));
}
private static async Task ProcessSentiments()
{
var fetchRatingsTask = FetchRatingsAsync();
var fetchProductsTask = FetchProductsAsync();
await Task.WhenAll(fetchRatingsTask, fetchProductsTask);
var ratings = fetchRatingsTask.Result;
var products = fetchProductsTask.Result;
var sentimentScores = products.GroupJoin(ratings, pi => pi.productid, r => r.ProductId, (pi, r) => new SentimentReportingItem()
{
Id = pi.productid,
ProductId = pi.productid,
ProductName = pi.productname,
TotalRatings = r.Count(),
TotalSentimentScore = r.Sum(item => item.SentimentScore),
});
foreach (var sentimentScore in sentimentScores)
{
await UpsertDocumentAsync(sentimentScore, "SentimentScore", sentimentScore.Id);
}
async Task <IEnumerable <Rating> > FetchRatingsAsync()
{
var documentClientDetails = await DocumentDbClientFactory.GetRatingsClientAsync();
var ratingsQuery = documentClientDetails.DocumentClient
.CreateDocumentQuery <Rating>(documentClientDetails.DocumentCollectionLink)
.AsDocumentQuery();
var fetchedRatings = new List <Rating>();
while (ratingsQuery.HasMoreResults)
{
var results = await ratingsQuery.ExecuteNextAsync <Rating>();
fetchedRatings.AddRange(results);
}
return(fetchedRatings);
}
async Task <IEnumerable <ProductInfo> > FetchProductsAsync()
{
using (var response = await ApiHttpClient.GetAsync($"https://serverlessohlondonproduct.azurewebsites.net/api/GetProducts"))
{
if (!response.IsSuccessStatusCode)
{
return(new List <ProductInfo>());
}
return(await response.Content.ReadAsAsync <IEnumerable <ProductInfo> >());
}
}
}
private static async Task <IEnumerable <Rating> > GetDocumentsAsync(string userId)
{
var documentClientDetails = await DocumentDbClientFactory.GetRatingsClientAsync();
var ratingsQuery = documentClientDetails.DocumentClient.CreateDocumentQuery <Rating>(documentClientDetails.DocumentCollectionLink)
.Where(r => r.UserId == userId)
.AsDocumentQuery();
var ratings = new List <Rating>();
while (ratingsQuery.HasMoreResults)
{
var results = await ratingsQuery.ExecuteNextAsync <Rating>();
ratings.AddRange(results);
}
return(ratings);
}
