Merge pull request #135 from willsmith9182/params-on-init-auth

Adding ClientMetadata to InitiateAuthRequest during StartWithSrpAuthAsync

Author: peterrsongg

src/Amazon.Extensions.CognitoAuthentication/CognitoUserAuthentication.cs

@@ -63,6 +63,11 @@ public virtual async Task<AuthFlowResponse> StartWithSrpAuthAsync(InitiateSrpAut
             Tuple<BigInteger, BigInteger> tupleAa = AuthenticationHelper.CreateAaTuple();
             InitiateAuthRequest initiateRequest = CreateSrpAuthRequest(tupleAa);
 
+            if (srpRequest.ClientMetadata != null)
+            {
+                initiateRequest.ClientMetadata = new Dictionary<string, string>(srpRequest.ClientMetadata);
+            }
+
             if (srpRequest.IsCustomAuthFlow)
             {
                 initiateRequest.AuthFlow = AuthFlowType.CUSTOM_AUTH;