我想开发window phone 8 应用程序。我是 windows phone 8 应用程序的新手。我想确认我可以在 windows phone 8 应用程序中使用亚马逊的产品广告 api 吗？我遇到的问题是我无法像在 Web 应用程序中那样引用IClientMessageInspector接口
public class AmazonSigningMessageInspector : IClientMessageInspector
{
private string accessKeyId = "";
private string secretKey = "";
public AmazonSigningMessageInspector(string accessKeyId, string secretKey)
{
this.accessKeyId = accessKeyId;
this.secretKey = secretKey;
}
public object BeforeSendRequest(ref Message request, IClientChannel channel)
{
// prepare the data to sign
string operation = Regex.Match(request.Headers.Action, "[^/]+$").ToString();
DateTime now = DateTime.UtcNow;
string timestamp = now.ToString("yyyy-MM-ddTHH:mm:ssZ");
string signMe = operation + timestamp;
byte[] bytesToSign = Encoding.UTF8.GetBytes(signMe);
// sign the data
byte[] secretKeyBytes = Encoding.UTF8.GetBytes(secretKey);
HMAC hmacSha256 = new HMACSHA256(secretKeyBytes);
byte[] hashBytes = hmacSha256.ComputeHash(bytesToSign);
string signature = Convert.ToBase64String(hashBytes);
// add the signature information to the request headers
request.Headers.Add(new AmazonHeader("AWSAccessKeyId", accessKeyId));
request.Headers.Add(new AmazonHeader("Timestamp", timestamp));
request.Headers.Add(new AmazonHeader("Signature", signature));
return null;
}
public void AfterReceiveReply(ref Message reply, object correlationState) { }
}