Create an App Client

App client is a way to configure the application which will use the selected Cognito User pool for authentication.

App client is required if you want to use the Cognito Hosted UI. For this example, we are not using Hosted UI directly but will integrate it in a later section.

As we have a user pool ready to use now, next, we will have to create an app client that will be allowed to use the pool.

• Select the App clients from the left menu in your Cognito user pool

• Enter App client name

• Uncheck Generate client secret. This is because JavaScript SDK does not support client secrets.

• Complete the setup with Create app client

At this stage, we have the Cognito app client ready to use for the user pool.

App Client for our application

The client secret is used by applications that have a server-side component that can secure the client secret.