alexeygrigorev/java-vk-oauth20

OAuth 2.0 interface for interacting with VK https://github.com/alexeygrigorev/java-vk-oauth20

Download

Step 1. Add the JitPack repository to your build file

Add it in your root settings.gradle at the end of repositories:

	dependencyResolutionManagement {
		repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
		repositories {
			mavenCentral()
			maven { url 'https://jitpack.io' }
		}
	}

Add it in your settings.gradle.kts at the end of repositories:

	dependencyResolutionManagement {
		repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
		repositories {
			mavenCentral()
			maven { url = uri("https://jitpack.io") }
		}
	}

Add to pom.xml

	<repositories>
		<repository>
		    <id>jitpack.io</id>
		    <url>https://jitpack.io</url>
		</repository>
	</repositories>

Add it in your build.sbt at the end of resolvers:

 
    resolvers += "jitpack" at "https://jitpack.io"

Add it in your project.clj at the end of repositories:

 
    :repositories [["jitpack" "https://jitpack.io"]]

Step 2. Add the dependency

	dependencies {
		implementation 'com.github.alexeygrigorev:java-vk-oauth20:'
	}
	dependencies {
		implementation("com.github.alexeygrigorev:java-vk-oauth20:")
	}
	<dependency>
	    <groupId>com.github.alexeygrigorev</groupId>
	    <artifactId>java-vk-oauth20</artifactId>
	    <version></version>
	</dependency>

                            
    libraryDependencies += "com.github.alexeygrigorev" % "java-vk-oauth20" % ""
        
        

                            
    :dependencies [[com.github.alexeygrigorev/java-vk-oauth20 ""]]

Readme

API for interacting with vk.com

Interacting

Interacting with vk.com consists of the following steps:

  1. Register an application and obtain appId and secret code
  2. Show for a user authorization pop-up
  3. Handle access code sent from vk.com
  4. Get access token
  5. Invoke api methods

Additional details are at http://vk.com/developers.php

java-vk-oauth20

This library wraps http-interaction with vk.com using HttpClient

Quick start

Maven dependency

<dependency>
    <groupId>ru.0agr</groupId>
    <artifactId>vkontakte-http-api</artifactId>
    <version>0.2</version>
</dependency>

<repositories>
    <repository>
        <id>java-vk-oauth20.googlecode.com</id>
        <url>http://java-vk-oauth20.googlecode.com/svn/m2/releases</url>
    </repository>
</repositories>

Spring configuration and Spring MVC contoller

<bean name="vkApi" class="com.googlecode.vkapi.HttpVkApi">
    <constructor-arg index="0" value="${vk.app.id}" />
    <constructor-arg index="1" value="${vk.app.key}" />
    <constructor-arg index="2" value="${vk.app.response_uri}" />
</bean>

@Controller
public class VkController {
    private final VkApi vkApi;

    @Autowired
    public VkController(VkApi vkApi) {
        this.vkApi = vkApi;
    }

    @RequestMapping(value = "/vk/auth", method = RequestMethod.GET)
    public String auth() {
        return "redirect:" + vkApi.getAuthUri();
    }

    @RequestMapping(value = "/vk/process", method = RequestMethod.GET)
    public String process(@RequestParam(value = "code", required = false) String code) 
            throws VkException {
        if (code != null) {
            OAuthToken token = vkApi.authUser(code);
            ...
        }
        // ...
    }

    @ExceptionHandler(VkTokenExpiredException.class)
    public ModelAndView handleVkTokenExpiredException(Principal principal, 
                VkTokenExpiredException ex) {
        // handle as appropriately
    }
}

Download

If, for any reasons, you don't use maven, and don't want to build artifacts yourself, here is the jar for downloading

About

This is released under WTFPL, which means you can do anything you want with this code.