Example app that implements OAuth2 Authorization Code flow with PKCE (https://oauth.net/2/pkce/), built with ASP.NET Core, IdentityServer4 and React.
- Create a SQL Server database and replace the connection string in IdentityServer/appsettings.json
 - Run all scripts from dbScripts.txt (from ReactIdentityServer4\IdentityServer directory)
 - Set all three projects as StartUp Projects
 - Start the solution
 
ReactClient is built with Create React App (https://create-react-app.dev/).