TOTP support and new MFA configuration APIs

README.md

@@ -774,9 +774,41 @@ The CookieStorage object receives a map (data) in its constructor that may have
             totpRequired : function(secretCode) {
                 var challengeAnswer = prompt('Please input the TOTP code.' ,'');
                 cognitoUser.sendMFACode(challengeAnswer, this, 'SOFTWARE_TOKEN_MFA');
+            },
+
+            mfaRequired: function(codeDeliveryDetails) {
+                var verificationCode = prompt('Please input verification code' ,'');
+                cognitoUser.sendMFACode(verificationCode, this);
+            }
+        });
+
+**Use case 28.** Enabling and setting SMS MFA as the preferred MFA method for the user.
+
+        smsMfaSettings = {
+            PreferredMfa : true,
+            Enabled : true
+        };
+        cognitoUser.setUserMfaPreference(smsMfaSettings, null, function(err, result) {
+            if (err) {
+                alert(err);
             }
+            console.log('call result ' + result)
         });
 
+**Use case 29.** Enabling and setting TOTP MFA as the preferred MFA method for the user.
+
+       	totpMfaSettings = {
+            PreferredMfa : true,
+            Enabled : true
+        };
+        cognitoUser.setUserMfaPreference(null, totpMfaSettings, function(err, result) {
+            if (err) {
+                alert(err);
+            }
+            console.log('call result ' + result)
+        });
+
+
 ## Network Configuration
 The Amazon Cognito Identity JavaScript SDK will make requests to the following endpoints
 * For Amazon Cognito Identity request handling: "https://cognito-idp.us-east-1.amazonaws.com"
@@ -790,6 +822,10 @@ In order to authenticate with the Amazon Cognito Identity Service, the client ne
 
 ## Change Log
 
+**v1.27.0:**
+* What has changed
+  * Added support for TOTP and new MFA settings APIs.
+
 **v1.26.0:**
 * What has changed
   * Fixed typescript typings.