OAuth2 Token Client

Overview

OAuth2 token client, to implement OAuth2 security in our REST clients.

Requisites

• Java 8+
• Maven 3+

Install

Gradle

	dependencies {
	    compile 'com.github.malkomich:oauth2-token-client:0.0.1'
	}

Maven

	<dependency>
	    <groupId>com.github.malkomich</groupId>
	    <artifactId>oauth2-token-client</artifactId>
	    <version>0.0.1</version>
	</dependency>

Usage

Initialize client:

OAuth2Client oAuth2Client = OAuth2Client
    .withConfig(oAuth2Config) // Initialize OAuth2Config from your config files
    .build();

Generate token:

String token = Optional.ofNullable(oAuth2Client.accessToken())
    .map(AccessToken::getAccessToken)
    .map("Bearer "::concat)
    .orElseThrow(() -> new AccessDeniedException());

Include the Authorization header:

// Spring WebClient
clientRequest.header(HttpHeaders.AUTHORIZATION, token);
// Feign Client
requestTemplate.header(HttpHeaders.AUTHORIZATION, token);
// Vert.x WebClient
webClient.putHeader(HttpHeaders.AUTHORIZATION.toString(), token)
// or any other Framework or client you may use

License

Apache License