Spring : How to get Oauth2 token from Postman?

Question

I have created Oauth2 server following to this spring-security-oauth-example. How can I get the Oauth2 token from Postman ?

This is the code for Resource Server and this is the code for AuthorizationServerConfig.

I want to understand how can I get the Oauth2 token for clientid = "ClientId" from Postman ? And what these below code signify:

public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter { @Autowired private AuthenticationManager authenticationManager; @Override public void configure(AuthorizationServerSecurityConfigurer security) throws Exception { security.tokenKeyAccess("permitAll()") .checkTokenAccess("isAuthenticated()"); } public class ResourceServerConfig extends WebSecurityConfigurerAdapter { http.requestMatchers() .antMatchers("/login", "/oauth/authorize") //what does this do

application.properties has

 server.port=8081 server.context-path=/auth security.basic.enable=false

yes it's clearly mentioned in the link AuthorizationServerConfig — Pale Blue Dot
– Pale Blue Dot, Commented Sep 22, 2019 at 13:17
Do you want only the process how to set oauth2 in the postman ? Is it ok, if I give you steps upto creating new access token option. The data should be filled by you. — Anish B.
– Anish B., Commented Sep 22, 2019 at 13:23
yes and a bit of explanation too..how the code in Github would work...Thanks a lot for your time — Pale Blue Dot
– Pale Blue Dot, Commented Sep 22, 2019 at 13:25

halfer · Accepted Answer · 2023-08-21 09:05:51Z

The steps to set up the OAuth 2.0 token in Postman.

Open Postman.
Create a new request. Click on "authorization" tab. Screenshot below :

Select Type of authentication as OAuth 2.0. Screenshot below :

Now, click on the "Get New Access Token". It will pop up to show this below :

Enter the desired details like Client ID, Client Secret, CallBack URL, Auth URL, Access Token URL etc.

So, I'm adding some helpful resources for you to understand the OAuth 2.0 Type.

The OAuth 2.0 Authorization Framework - This will give an idea what is OAuth 2.0 Authorization Framework?

A screenshot from the above link : How the Oauth 2.0 Authorization Framework looks like.

Some video lectures to understand it visually :

a. https://www.youtube.com/watch?v=NRU_KdUSjD4

b. https://www.youtube.com/watch?v=Dbxzw0cpxBU

@RahulRaj I have added the video of the code owner. He has published a video tutorial on this. Please checkout.
B can you just what is the responsibility of Autherisation server and Resource server?
Resource server keeps all the resources which needs to be protected. Based on the access token, it provides the protected resource. On the other hand, the authorization server gives an access token from resource owner through which you can get access to the protected resource from resource server
Suppose i am hitting an /api/hsbc/account and hsbc directs me for authentican to Google .then which is the server resource server here

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