Gist showing how to do user login using biconomy SDK

user-login.js

biconomy.login(<public wallet address>, (error, response) => {
   if(response.transactionHash) {
     // First time user. Contract wallet transaction pending. Wait for confirmation.
   } else if(response.userContract) {
     // Existing user login successful
   }
});

biconomy.on(biconomy.LOGIN_CONFIRMATION, (log) => {
   // User's Contract Wallet creation successful
});