Yhdistä Salesforce muihin järjestelmiin käyttäen REST API:a

				
					import org.json.simple.JSONValue;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URL;
import java.util.Map;

public class SalesforceAuth {

    // Replace with your instance URL and credentials
    private static final String TOKEN_URL = "https://yourInstance.salesforce.com/services/oauth2/token";
    private static final String CLIENT_ID = "YOUR_CLIENT_ID";
    private static final String CLIENT_SECRET = "YOUR_CLIENT_SECRET";
    private static final String USERNAME = "YOUR_SALESFORCE_USERNAME";
    private static final String PASSWORD = "YOUR_SALESFORCE_PASSWORD";
    private static final String GRANT_TYPE = "password";

    /*
     * This method sends a POST request to the Salesforce OAuth2 token endpoint
     * to get an access token.
     * 
     * @return The access token as a string.
     */
    public static String getAccessToken() throws Exception {
        URI uri = new URI(TOKEN_URL);
        URL url = uri.toURL();
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        String requestBody = "grant_type=" + GRANT_TYPE +
                "&client_id=" + CLIENT_ID +
                "&client_secret=" + CLIENT_SECRET +
                "&username=" + USERNAME +
                "&password=" + PASSWORD;

        conn.setDoOutput(true);
        OutputStream os = conn.getOutputStream();
        os.write(requestBody.getBytes());
        os.flush();
        os.close();

        InputStream is = conn.getInputStream();
        BufferedReader rd = new BufferedReader(new InputStreamReader(is));
        StringBuilder response = new StringBuilder();
        String line;
        while ((line = rd.readLine()) != null) {
            response.append(line);
            response.append('\r');
        }
        rd.close();
        conn.disconnect();

        Object jsonResponse = JSONValue.parse(response.toString());
        Map<String, Object> responseMap = (Map<String, Object>) jsonResponse;
        return responseMap.get("access_token").toString();
    }
}