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Oauth 2.0 - Single resource server but multiple client applications


By : pawingo
Date : October 17 2020, 08:10 PM
wish helps you so if you have multiple client, you can register client detail in AuthorizationServer by extend AuthorizationServerConfigurerAdapter
the following is the example how you register client detail in memory:
code :
@EnableAuthorizationServer
@Configuration
public class AuthServerConfig extends AuthorizationServerConfigurerAdapter {
    private final AuthenticationManager authenticationManager;

    @Autowired
    public AuthServerConfig(AuthenticationManager authenticationManager) {
        this.authenticationManager = authenticationManager;
    }

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.inMemory()
                .withClient("egen")
                .secret("{noop}egensecret")
                .authorizedGrantTypes("authorization_code","refresh_token","password")
                .scopes("food_read","food_write")
            .and()
                .withClient("oauthclient")
                .secret("{noop}oauthclient-secret")
                .authorizedGrantTypes("client_credentials", "refresh_token")
                .authorities("ROLE_USER", "ROLE_OPERATOR")
                .scopes("food_read");
    }
///more code
}


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OAuth 2.0 Authentication Server with multiple Resource Servers


By : user3471863
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Assuming you use a single Authorization Server the scopes concept allows you to handle this: you could define a scope per API and have clients ask for one or both scopes. It is perfectly valid and practical OAuth 2.0 to issue an access token that is associated with multiple scopes (i.e. APIs in your case).
Access tokens are issued on a per-client basis so handing out different access tokens to the same client doesn't bring you any security advantage unless the two APIs are controlled by different entities. In any case, the client would have to make a difference in how it requests them, which would be done using scopes again.

Registering single client as multiple applications in Spring Eureka


By : Nisha Satia
Date : March 29 2020, 07:55 AM
this will help It is not possible. Posted the same question as an issue in github. Seems like it is not possible. Refer link

Sharing a single resource (serial port) between multiple applications


By : Jiva Lifes
Date : March 29 2020, 07:55 AM
it helps some times You need one controller process that actually opens the serial port and sends/receives data.
Your DLLs exposing those interfaces should communicate with the controller process, not the serial port directly.

Socket single client/server connection, server can send multiple times, client can only once


By : 邓晓峰
Date : March 29 2020, 07:55 AM
hope this fix your issue I have written a client and server application that I need to use to connect a checkers game I made in C#. I have got the client and server to connect and the server can repeatedly send the client messages to update a label but when the client tries to send a message it throws the error , Why not use asynchronous sockets? Here is some code:

How to share JWT Tokens across Multiple Applications (Web / Mobile) when using identity server 3.0 and oAuth 2.0


By : mgh14
Date : March 29 2020, 07:55 AM
To fix this issue What you need is a Single Sign-On (SSO) behavior among two applications. But there is an issue with the current flow you use.
As you are currently using Resource Owner Client Credential Grant, you are not using the end user login of identity server. Instead, I believe you obtain end user credentials from mobile app and invoke token endpoint to obtain tokens.
code :
1. App A follow a flow that utilize front channel login (ex:-
Authorization code flow with PKCE)
2. End user is present with login page of Identity Server
3. App A completes the flow and obtain tokens
4. App B use a flow utilize front channel login
4. Identity server get login request and see cookies which correlate previously logged in user
5. Because of cookies, log in page is skipped and optionally consent page will be  showed
6. App B completes the flow and obtain tokens
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