added readme

Author: rrohitramsen

README.md

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+# spring-boot-oauth2-jwt-swagger-ui
+Spring Boot , OAuth 2 , JWT (Json Web Token) and Swagger UI
+
+# Spring Boot + OAuth 2.0 + JWT + Swagger-UI 2?
+
+## How to start ?
+
+```
+$ mvn spring-boot:run
+```
+
+## Swagger-UI
+* After starting the application Click on [Swagger-home](http://localhost:8080/api/swagger-ui.html)
+
+![Swagger-Home](/authentication/src/main/resources/images/Swagger-UI-Home.png "Swagger UI Home")
+
+
+## User Data
+
+```
+   user-name         | password
+   [email protected] | password
+   [email protected] | password
+   [email protected] | password
+```
+
+
+## Authorize
+* Use above given user details to login and generate the authorization token.
+![Swagger-Home](/authentication/src/main/resources/images/Swagger-ui-auth.png "Swagger UI Home")
+
+![Swagger-Home](/authentication/src/main/resources/images/swagger-ui-login.png "Swagger UI Home")
+
+* Login using the generated token
+![Swagger-Home](/authentication/src/main/resources/images/swagger-ui-login-token.png "Swagger UI Home")
+
+
+
+## Change OAuth configuration
+* Edit the configuration in the file [application.properties](/authentication/src/main/resources/application.properties)
+
+```
+server.port=8080
+server.contextPath=/api
+
+logging.level.com.alfred=DEBUG
+
+# Data source properties
+spring.jpa.hibernate.ddl-auto=validate
+spring.jpa.show-sql=true
+
+# openssl genrsa -out jwt.pem 2048
+# openssl rsa -in jwt.pem
+config.oauth2.privateKey=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
+
+# openssl rsa -in jwt.pem -pubout
+config.oauth2.publicKey=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDNQZKqTlO/+2b4ZdhqGJzGBDltb5PZmBz1ALN2YLvt341pH6i5mO1V9cX5Ty1LM70fKfnIoYUP4KCE33dPnC7LkUwE/myh1zM6m8cbL5cYFPyP099thbVxzJkjHWqywvQih/qOOjliomKbM9pxG8Z1dB26hL9dSAZuA8xExjlPmQIDAQAB
+
+
+#oauth configurations
+config.oauth2.tokenTimeout=3600
+config.oauth2.resource.id=oauth2-resource
+config.oauth2.clientID=client
+config.oauth2.clientSecret=secret
+security.oauth2.client.grantType=client_credentials
+config.oauth2.accessTokenUri=http://localhost:8080/api/oauth/token
+config.oauth2.userAuthorizationUri=http://localhost:8080/api/oauth/authorize
+config.oauth2.resourceURI= http://localhost:8080/api/oauth/authorize
+```
+
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