Api sso silent

lib/msal-core/src/UserAgentApplication.ts

@@ -574,6 +574,27 @@ export class UserAgentApplication {
         });
     }
 
+    /**
+     * API interfacing idToken request when applications already have a session/hint acquired by authorization client applications
+     * @param request
+     */
+    ssoSilent(request: AuthenticationParameters): Promise<AuthResponse> {
+        // throw an error on an empty request
+        if (!request) {
+            throw ClientConfigurationError.createEmptyRequestError();
+        }
+
+        // throw an error on no hints passed
+        if(!request.sid || !request.loginHint) {
+            throw ClientConfigurationError.createSsoSilentError();
+        }
+
+        return this.acquireTokenSilent({
+            ...request,
+            scopes: [this.clientId]
+        });
+    }
+
     /**
      * Use this function to obtain a token before every call to the API / resource provider
      *
@@ -639,6 +660,7 @@ export class UserAgentApplication {
                 this.logger.verbose("ADAL's idToken exists. Extracting login information from ADAL's idToken ");
                 serverAuthenticationRequest.populateQueryParams(account, null, adalIdTokenObject);
             }
+
             const userContainedClaims = request.claimsRequest || serverAuthenticationRequest.claimsValue;
 
             let authErr: AuthError;

lib/msal-core/src/error/ClientAuthError.ts

@@ -59,7 +59,7 @@ export const ClientAuthErrorMessage = {
     },
     userLoginRequiredError: {
         code: "user_login_error",
-        desc: "User login is required."
+        desc: "User login is required. For silent calls, request must contain either sid of login_hint"
     },
     userDoesNotExistError: {
         code: "user_non_existent",

lib/msal-core/src/error/ClientConfigurationError.ts

@@ -81,6 +81,10 @@ export const ClientConfigurationErrorMessage = {
     telemetryConfigError: {
         code: "telemetry_config_error",
         desc: "Telemetry config is not configured with required values"
+    },
+    ssoSilentError: {
+        code: "sso_silent_error",
+        desc: "request must contain either sid of login_hint"
     }
 };
 
@@ -169,4 +173,9 @@ export class ClientConfigurationError extends ClientAuthError {
 
         return new ClientConfigurationError(code, `${desc} mising values: ${missingKeys.join(",")}`);
     }
+
+    static createSsoSilentError(): ClientConfigurationError {
+        return new ClientConfigurationError(ClientConfigurationErrorMessage.ssoSilentError.code,
+            ClientConfigurationErrorMessage.ssoSilentError.desc);
+    }
 }