Link an Account Using FastLink
FastLink is a responsive application that helps end-users link their accounts to your application. It facilitates linking user accounts and offers intuitive searches for financial institutions, credentials management, multifactor authentication implementation, and error handling. It can also be white-labeled to suit your business needs. By using FastLink you can avoid creating complex user flows of ever-changing login mechanisms of different financial institutions. Once FastLink is launched, the application remains active for 120 minutes and in case of inactivity for 30 minutes.
FastLink Product Flows
Yodlee FastLink has the capability to adapt its user interface depending on the data request made through the API. This allows to invoke the most relevant type of user experience flow based on the data request and use case. The three FastLink product flows or user experience flow that adapts to the requested data are:
- Aggregation: Aggregate account summary-level information such as masked account number, account type, account balance, and account name. Transactions are also retrieved as part of aggregation.
- Verification: Retrieve account information required to perform account and ownership verification. The user's account profile information such as full account number, routing number, and account holder name(s) are retrieved for the checking and savings accounts held at the sites after verifying the access to the accounts using credentials. To know more about the account verification use case, refer to Account Verification Quickstart and Use Cases.
- Aggregation plus Verification: Aggregate account summary-level information and transactions, in addition to other low-level account information such as full account number, routing number, and account holder name(s).
Yodlee provides realistic test data for use in the sandbox environment. You can use the test data to put your app through its paces with a variety of situations close to real world accounts. The sandbox does not support linking to live data (real world accounts), so we simulate this with a set of fictional financial institutions.
Integrating FastLink for Web
The code contains the parameters and other access details needed for FastLink invocation. It primarily includes two actions that are required to launch and close FastLink using the
fastlink.close() methods, respectively. This script also requires a user-specific
accessToken that has to be generated on your server-side for your respective environment using the POST /auth/token API.
fastlink.open() method in the above script requires the following parameters:
The FastLink application URL that you can access from your API Dashboard.
The user-specific token that is generated for the user who invokes FastLink.
Specify any of the following user experience flow values in
The FastLink application will invoke the callback functions to update its status back to the host application. The host application must be running on the HTTP/HTTPS protocol to receive these callbacks on the server-side. Following are the available callback functions:
Close the FastLink application by calling the
Integrating Web Application to Mobile
In Web implementation of FastLink Open Banking flow, opening the financial institution’s OAUTH site to get the user’s consent using the
window.open JS method may not work in case of native
WebView. Either the
WebView blocks the different domain URL that FastLink tries to load or the financial institution’s site may not load in child environment due to security.
To integrate your web application in mobile, which has already integrated FastLink using drop-in JS or iframe, follow below steps:
isIframeMountedextra param as
On passing of this extra param, FastLink will send the external URL opening as a post message instead of opening it.
- Pass this post message to the native app and an external browser can be opened.
intentURlto get control back from financial institution to native app or use a standard redirection to
To know how to open new window and get control back, refer to the respective mobile mobile platform integration pages.
Integrating FastLink for Mobile
FastLink integrates easily into mobile platforms using a WebView. The Simplified Mobile Integration key should be enabled in the FastLink 3.0 configuration tool for ease of integration. For more information, refer to the Global section in the FastLink 3.0 Configuration Tool Guide page.
- Integrating FastLink 3.0 for iOS
- Integrating FastLink 3.0 for Android
- Integrating FastLink 3.0 for ReactNative