C# Amazon Product Advertising API

Question

As of August 15, Amazon made it compulsory to sign all requests made to their Product Advertising API. I thought I had got everything working just fine but when the 15th finally

Answer 1

This library automatic sign the requests (Install-Package Nager.AmazonProductAdvertising) https://www.nuget.org/packages/Nager.AmazonProductAdvertising/

Example:

var authentication = new AmazonAuthentication("accesskey", "secretkey");
var client = new AmazonProductAdvertisingClient(authentication, AmazonEndpoint.US);
var result = await client.SearchItemsAsync("canon eos");

Answer 2

Check out http://flyingpies.wordpress.com/2009/08/01/17/. It has a walkthrough and a sample visual studio solution using C#, SOAP, WCF on .NET 3.5.