OAuth in Mule Ce

# Using Component Grovy

import org.scribe.builder.ServiceBuilder;
import org.scribe.model.*;
import org.scribe.oauth.OAuthService;
import java.util.Scanner;
import org.scribe.oauth.*;


OAuthService service = new ServiceBuilder()
        .provider(classProvider)
        .apiKey("API-KEY")
        .apiSecret("API-SECRET")
        .debug()
        .build();

Token permanentToken = new Token("permanent-key", "permanent-secret");
OAuthRequest request = new OAuthRequest(Verb.POST, "URL_API_REST");
request.addHeader("Content-Type", "application/json");
request.addHeader("Accept", "application/json");
request.addPayload(flowVars.content_product);
service.signRequest(permanentToken, request);
Response response = request.send();
System.out.println(response.getCode());
System.out.println(response.getBody());	

flowVars['error_description'] = response.getBody()
flowVars['mage_code_response'] = response.getCode()