Implicit Grant Type
Learn how the OAuth implicit grant type works for single-page JavaScript applications without backends. Understand the flow where access tokens are returned directly to the client, why client secrets are not used, and the associated security considerations. This lesson equips you with knowledge to implement OAuth in front-end apps safely.
We'll cover the following...
The Implicit grant type is designed for single-page JavaScript apps that do not have a backend. In the previous lesson, we discussed the Authorization Code grant flow, in which the client app used the client_secret and authorization code to get the access code.
The problem with JavaScript apps (without a backend) is that they have no way to store client secrets. Storing the client secret in the JavaScript code is not as safe, because anyone can access it. Therefore, we use the Implicit flow for these apps. In Implicit flow, the authorization server directly returns the access token instead of returning the code.
This flow type should be used only if there ...