One login per sub domain

We will demonstrate the changes required for this with an example:

• Customer 1: Let's say that the name of the customer is abc. In this case, we want them to login via abc.example.com/auth and get redirected to use abc.example.com after login.
• Customer 2: Let's say that the name of the customer is xyz. In this case, we want them to login via xyz.example.com/auth and get redirected to use xyz.example.com after login.

Frontend setup:

• Change the init function params for abc.example.com

  SuperTokens.init({
      appInfo: {
          appName: "YOUR APP NAME",
          apiDomain: "YOUR API DOMAIN",
          websiteDomain: "abc.example.com",
      },
      recipeList: [...]
  });
  

• Change the init function params for xyz.example.com

  SuperTokens.init({
      appInfo: {
          appName: "YOUR APP NAME",
          apiDomain: "YOUR API DOMAIN",
          websiteDomain: "xyz.example.com",
      },
      recipeList: [...]
  });
  

We set different websiteDomain values per customer.

Backend setup:

• Change the init function params in accordance with the frontend

  supertokens.init({
      appInfo: {
          appName: "YOUR APP NAME",
          apiDomain: "YOUR API DOMAIN",
          websiteDomain: "example.com"
  
      },
      recipeList: [
          EmailPassword.init({
              resetPasswordUsingTokenFeature: {
                  getResetPasswordURL: (user) => {
                      let {id, email} = user;
  
                      // getUserDomain is your implementation
                      let userDomain = await getUserDomain(userId);
  
                      return `https://${userDomain}.example.com/reset-password`;
                  }
              },
  
              emailVerificationFeature: {
                  getEmailVerificationURL: (user) => {
                      let {id, email} = user;
  
                      // getUserDomain is your implementation
                      let userDomain = await getUserDomain(userId);
  
                      return `https://${userDomain}.example.com/verify-email`;
                  }
              },
          }),
          Session.init()
      ]
  });