<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.example</groupId>
  <artifactId>demo</artifactId>
  <version>1.0</version>

  <name>demo</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>17</maven.compiler.source>
    <maven.compiler.target>17</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>se.michaelthelin.spotify</groupId>
      <artifactId>spotify-web-api-java</artifactId>
      <version>7.2.2</version>
    </dependency>
        <dependency>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-dependency-plugin</artifactId>
      <version>3.4.0</version>
      <type>maven-plugin</type>
    </dependency>
  </dependencies>
  

  <build>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <!-- <plugin>
          <artifactId>maven-jar-plugin</artifactId>
          <version>3.0.2</version>
        </plugin> -->
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
        <plugin>
          <artifactId>maven-site-plugin</artifactId>
          <version>3.7.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-project-info-reports-plugin</artifactId>
          <version>3.0.0</version>
        </plugin>
        <plugin>
        <!-- Build an executable JAR -->
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        <version>3.1.0</version>
        <configuration>
          <archive>
            <manifest>
              <addClasspath>true</addClasspath>
              <!-- here we specify that we want to use the main method within the App class -->
              <mainClass>com.example.App</mainClass>
            </manifest>
          </archive>
        </configuration>
      </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

package com.example;

import se.michaelthelin.spotify.SpotifyApi;
import se.michaelthelin.spotify.model_objects.credentials.ClientCredentials;
import se.michaelthelin.spotify.requests.authorization.client_credentials.ClientCredentialsRequest;

import org.apache.hc.core5.http.ParseException;
import se.michaelthelin.spotify.exceptions.SpotifyWebApiException;


import java.io.IOException;


public class App 
{
    private static final String client_secret = "clientsecret";
    private static final String client_id = "clientid";
   
    private static final SpotifyApi spotifyApi = new SpotifyApi.Builder()
        .setClientId(client_id)
        .setClientSecret(client_secret)
        .build();

    private static final ClientCredentialsRequest clientCredentialsRequest = spotifyApi.clientCredentials()
        .build();

    public static void clientCredentials_Sync() {
        try {
        final ClientCredentials clientCredentials = clientCredentialsRequest.execute();

        // Set access token for further "spotifyApi" object usage
        spotifyApi.setAccessToken(clientCredentials.getAccessToken());

        System.out.println("Expires in: " + clientCredentials.getExpiresIn());
        } catch (IOException | SpotifyWebApiException | ParseException e) {
        System.out.println("Error: " + e.getMessage());
        }
  }
    public static void main( String[] args ){
        System.out.println( "Hello World!" );
        clientCredentials_Sync();
    }
}