Could Any one please help me, How we are going to implement OAUTH2 in real time senario.Please provide some examples of OAUTH2.

[madhans]

Here are a few samples

1)

http://docs.apigee.com/api-services/content/oauth-20-client-credentials-grant-type

https://github.com/apigee/api-platform-samples/tree/master/default-proxies/oauth

2)

http://docs.apigee.com/api-services/content/implementing-password-grant-type

OAuth is a broad term and the above refer to 2 simpler scenarios. The following will help you get started with the concepts.

http://docs.apigee.com/api-services/content/oauth-home

[#2]

To add to what @Madhan Sadasivam has suggested, you may want to set up two basic proxies.

1. One is for generating the access token with grant_type as password, client credentials or refresh token.

2. Another is to validate that access token, while the consumer is trying to consume the specific api services.

In this way, you can achieve the very preliminary set of OAuth2 implementations.