diff --git a/doc/baseConfig.md b/doc/baseConfig.md
index 30807dd..e307c2d 100644
--- a/doc/baseConfig.md
+++ b/doc/baseConfig.md
@@ -121,6 +121,15 @@ platform = 'browser';
 storage = 'localStorage';
 // The key used for storing the authentication response locally
 storageKey = 'aurelia_authentication';
+// optional function to extract the expiration date. takes the server responseas parameter
+// eg (expires_in in sec): getExpirationDateFromResponse = serverResponse => new Date().getTime() + serverResponse.expires_in * 1000;
+getExpirationDateFromResponse = null;
+// optional function to extract the access token from the response. takes the server response as parameter
+// eg: getAccessTokenFromResponse = serverResponse => serverResponse.data[0].access_token;
+getAccessTokenFromResponse = null;
+// optional function to extract the refresh token from the response. takes the server response as parameter
+// eg: getRefreshTokenFromResponse = serverResponse => serverResponse.data[0].refresh_token;
+getRefreshTokenFromResponse = null;
 
 // List of value-converters to make global
 globalValueConverters = ['authFilterValueConverter'];
diff --git a/src/authentication.js b/src/authentication.js
index cfd1fda..dcb9aff 100644
--- a/src/authentication.js
+++ b/src/authentication.js
@@ -145,14 +145,23 @@ export class Authentication {
   getDataFromResponse(response) {
     const config   = this.config;
 
-    this.accessToken = this.getTokenFromResponse(response, config.accessTokenProp, config.accessTokenName, config.accessTokenRoot);
+    // get access token either with from supplied parameters or with supplied function
+    this.accessToken = typeof this.config.getAccessTokenFromResponse === 'function'
+                     ? this.config.getAccessTokenFromResponse(response)
+                     : this.getTokenFromResponse(response, config.accessTokenProp, config.accessTokenName, config.accessTokenRoot);
+
 
     this.refreshToken = null;
     if (config.useRefreshToken) {
       try {
-        this.refreshToken = this.getTokenFromResponse(response, config.refreshTokenProp, config.refreshTokenName, config.refreshTokenRoot);
+        // get refresh token either with from supplied parameters or with supplied function
+        this.refreshToken = typeof this.config.getRefreshTokenFromResponse === 'function'
+                         ? this.config.getRefreshTokenFromResponse(response)
+                         : this.getTokenFromResponse(response, config.refreshTokenProp, config.refreshTokenName, config.refreshTokenRoot);
       } catch (e) {
         this.refreshToken = null;
+
+        LogManager.getLogger('authentication').warn('useRefreshToken is set, but could not extract a refresh token');
       }
     }
 
@@ -168,7 +177,10 @@ export class Authentication {
       this.payload = this.accessToken ? jwtDecode(this.accessToken) : null;
     } catch (_) {_;}
 
-    this.exp = this.payload ? parseInt(this.payload.exp, 10) : NaN;
+    // get exp either with from jwt or with supplied function
+    this.exp = typeof this.config.getExpirationDateFromResponse === 'function'
+            ? this.config.getExpirationDateFromResponse(response)
+            : (this.payload && parseInt(this.payload.exp, 10)) ||  NaN;
 
     this.hasDataStored = true;
 
diff --git a/src/baseConfig.js b/src/baseConfig.js
index 40d034a..be7c858 100644
--- a/src/baseConfig.js
+++ b/src/baseConfig.js
@@ -149,6 +149,15 @@ export class BaseConfig {
   storage = 'localStorage';
   // The key used for storing the authentication response locally
   storageKey = 'aurelia_authentication';
+  // optional function to extract the expiration date. takes the server responseas parameter
+  // eg (expires_in in sec): getExpirationDateFromResponse = serverResponse => new Date().getTime() + serverResponse.expires_in * 1000;
+  getExpirationDateFromResponse = null;
+  // optional function to extract the access token from the response. takes the server response as parameter
+  // eg: getAccessTokenFromResponse = serverResponse => serverResponse.data[0].access_token;
+  getAccessTokenFromResponse = null;
+  // optional function to extract the refresh token from the response. takes the server response as parameter
+  // eg: getRefreshTokenFromResponse = serverResponse => serverResponse.data[0].refresh_token;
+  getRefreshTokenFromResponse = null;
 
   // List of value-converters to make global
   globalValueConverters = ['authFilterValueConverter'];
diff --git a/test/authentication.spec.js b/test/authentication.spec.js
index c391a7c..6b7c92b 100644
--- a/test/authentication.spec.js
+++ b/test/authentication.spec.js
@@ -82,6 +82,14 @@ describe('Authentication', () => {
 
       expect(authentication.getAccessToken()).toBe('some');
     });
+
+    it('Should use custom function to analyze response first and return accessToken', () => {
+      authentication.config.getAccessTokenFromResponse = response => response.custom;
+
+      authentication.setResponseObject({custom: 'custom'});
+
+      expect(authentication.getAccessToken()).toBe('custom');
+    });
   });
 
   describe('.getRefreshToken()', () => {
@@ -95,10 +103,20 @@ describe('Authentication', () => {
 
     it('Should analyze response first and return refreshToken', () => {
       authentication.config.useRefreshToken = true;
+
       authentication.setResponseObject({token: 'some', refresh_token: 'another'});
 
       expect(authentication.getRefreshToken()).toBe('another');
     });
+
+    it('Should use custom function to analyze response first and return refreshToken', () => {
+      authentication.config.useRefreshToken = true;
+      authentication.config.getRefreshTokenFromResponse = response => response.custom;
+
+      authentication.setResponseObject({token: 'some', custom: 'other custom'});
+
+      expect(authentication.getRefreshToken()).toBe('other custom');
+    });
   });
 
   describe('.getIdToken()', () => {
@@ -162,6 +180,16 @@ describe('Authentication', () => {
       expect(typeof exp === 'number').toBe(true);
       expect(exp).toBe(Number(tokenPast.payload.exp));
     });
+
+    it('Should use custom function to analyze response first and return exp', () => {
+      authentication.config.getExpirationDateFromResponse = response => response.custom;
+
+      authentication.setResponseObject({token: 'some', custom: 2460017154});
+
+      const exp = authentication.getExp();
+      expect(typeof exp === 'number').toBe(true);
+      expect(exp).toBe(2460017154);
+    });
   });