Tag Archives: OAuth2

Full Server logout with IdentityServer4 and OpenID Connect Implicit Flow

The article shows how to fully logout from IdentityServer4 using an OpenID Connect Implicit Flow. Per design when using an access token to use protected data from a resource server, even if the client has logged out from the server, the access token can be used so long it is valid (AccessTokenLifetime) as it is […]

Secure file download using IdentityServer4, Angular2 and ASP.NET Core

This article shows how a secure file download can be implemented using Angular 2 with an OpenID Connect Implicit Flow using IdentityServer4. The resource server needs to process the access token in the query string and the NuGet package IdentityServer4.AccessTokenValidation makes it very easy to support this. The default security implementation jwtBearerHandler reads the token […]

Authorization Policies and Data Protection with IdentityServer4 in ASP.NET Core

This article shows how authorization policies can be used together with IdentityServer4. The policies are configured on the resource server and the ASP.NET Core IdentityServer4 configures the user claims to match these. The resource server is also setup to encrypt a ‘Description’ field in the SQLite database, so it cannot be read by opening the […]

OAuth2 Implicit Flow with AngularJS and ASP.NET Core 2.0 IdentityServer4

This article shows how to implement the OAuth2 Implicit Flow with an AngularJS client and IdentityServer4 hosted in ASP.NET Core 1.1. The code was built using the IdentityServer4.Samples. Thanks to everyone who helped in creating IdentityServer. Code: https://github.com/damienbod/AspNet5IdentityServerAngularImplicitFlow History: 2017-08-15: Updated ASP.NET Core 2.0, Angular 4.3.6 Full history: https://github.com/damienbod/AspNet5IdentityServerAngularImplicitFlow#history Other posts in this series: OAuth2 […]

Web API GitHub OAuth2 Code Flow

This article demonstrates how to setup an OAuth2 code flow example using GitHub as an authorization server and a Web API service as a resource server. Thanks to Jerrie Pelser and Thinktecture for providing code and blogs which made it easy to research this and setup a working example. Code: https://github.com/damienbod/WebAppGitHubCodeFlow Setting up GitHub OAuth2 […]

Web API 2 Excel File Export With OAuth2 Implicit Flow

This article demonstrates how to set up a Web API 2 excel file download using OAuth2 Implicit Flow. The application requires an Authorization Server and Identity Server V2 from Thinkteckture and also the excel Media Formatter from WebApiContrib. leastprivilege.com provided a lot of blogs which helped complete this article. Thanks for those blogs. The article […]