Generate a custom client token to authorize user access

Cloud Scale’s Authentication component allows you to implement a third-party authentication service of your preference for your Catalyst application. The authorization and validation of the end-user is handled by the third-party service, and the data is passed on to Catalyst.

When a user is re-directed from a third-party service after being authenticated, their credentials must be passed to an authentication function that you code in Java, Node.js, or Python. This function will generate a Catalyst server-side token, which will be passed to client-side code given below. You must incorporate this code into your web client logic.

A sample code to process the custom server token and generate a JSON Web Token token (JWT) to authenticate the user is given below.

    

        
copy
        

            

        
    
    

         <script src="https://static.zohocdn.com/catalyst/sdk/js/4.0.0/catalystWebSDK.js"></script>
<script src="/__catalyst/sdk/init.js"></script>
<script>
  catalyst.auth.signinWithJwt(getCustomTokenCallback);
  function getCustomTokenCallback(){
    return fetch("{domain}/server/{function_name}/execute") //function url to get the generated custom token
    .then(resp => resp.json()
    .then(resp => {
      return new Promise((resolve, reject) => {
        resolve({
          client_id : "********",
          scopes : "ZOHOCATALYST.tables.rows.ALL,ZOHOCATALYST.cache.READ",
          jwt_token : "*********"
        });
      });
    }))
}
</script>