PKCE flow of OpenID Connect
Published in
4 min readAug 7, 2019
Before understanding the PKCE flow, I would like to introduce and explain the concept of OpenID Connect. OpenID Connect is a simple identity layer on top of the OAuth 2.0 protocol. It allows Clients to verify the identity of the end-user based on the authentication performed by an Authorization Server, as well as to obtain basic profile information about the end-user in an interoperable and REST-like manner.