public async Task <ProviderBookOffer> SearchOffersByIsbnAsync(string isbn)
{
try
{
var response = await AmazonWrapper.SearchAsync(isbn, AmazonSearchIndex.Books, AmazonResponseGroup.Offers);
var item = response.Items.Item.FirstOrDefault();
var itemOffer = item.Offers.Offer.FirstOrDefault();
var itemOfferListing = itemOffer.OfferListing.FirstOrDefault();
return(new ProviderBookOffer
{
Title = item.ItemAttributes.Title,
Isbn = item.ItemAttributes.ISBN,
Provider = Name,
Price = decimal.Parse(itemOfferListing.Price.Amount),
CurrencyCode = itemOfferListing.Price.CurrencyCode,
Url = itemOfferListing.OfferListingId
});
}
catch (Exception e)
{
_logger.LogError(e, "Amazon: Search offers failed.");
return(new ProviderBookOffer());
}
}
public async Task <IEnumerable <ProviderBookSearchItem> > SearchByTitleAsync(string title)
{
try
{
var response = await AmazonWrapper.SearchAsync(title, AmazonSearchIndex.Books, AmazonResponseGroup.Small);
return(response.Items.Item
.Select(x => new ProviderBookSearchItem
{
Title = x.ItemAttributes.Title,
Isbn = new IsbnData
{
Id10Digits = x.ItemAttributes.ISBN
},
Authors = x.ItemAttributes.Author,
Provider = Name
})
.ToList());
}
catch (Exception e)
{
_logger.LogError(e, "Amazon: Search books failed.");
return(Enumerable.Empty <ProviderBookSearchItem>());
}
}
private async void buttonSearch_Click(object sender, EventArgs e)
{
var search = this.textBoxSearch.Text;
var endpoint = (AmazonEndpoint)this.comboBoxEndpoint.SelectedItem;
var searchIndex = (AmazonSearchIndex)this.comboBoxSearchIndex.SelectedItem;
var responseGroup = (AmazonResponseGroup)this.comboBoxResponseGroup.SelectedItem;
var wrapper = new AmazonWrapper(this._authentication, endpoint, "nagerat-21");
wrapper.XmlReceived += XmlReceived;
var result = await wrapper.SearchAsync(search, searchIndex, responseGroup);
wrapper.XmlReceived -= XmlReceived;
if (result == null)
{
this.tabControl1.SelectedIndex = 1;
MessageBox.Show("Request error");
return;
}
this.dataGridViewResult.DataSource = result.Items.Item;
}
