Hi everyone, I'm having trouble obtaining the authentication token within a REST service I'm creating. Below is the error log.

ago. 19, 2024 9:17:56 AM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet default] in context with path [/teste-restfull] threw exception Error processing webservice request] with root cause

com.docusign.esign.client.ApiException: Error while requesting an access token: ResponseImpl{status=200}

at com.docusign.esign.client.ApiClient.requestJWTUserToken(ApiClient.java:913)

@Path("/hello")

public class TestService {

@Context

private HttpServletRequest request;

@GET

@Produces(MediaType.TEXT_PLAIN)

public String index() throws ApiException, IOException {

File appConfig = Paths.getUri("app.config").toFile();

File privateKey = Paths.getUri("private.key").toFile();

FileInputStream fisAConfig = new FileInputStream(appConfig);

FileInputStream fisPKey = new FileInputStream(privateKey);

Properties prop = new Properties();

prop.load(fisAConfig);

ApiClient apiClient = new ApiClient(ApiClient.DEMO_REST_BASEPATH);

apiClient.setOAuthBasePath("account-d.docusign.com");

apiClient.setDebugging(true);

ArrayList<String> scopes = new ArrayList<String>();

scopes.add("signature");

scopes.add("impersonation");

OAuthToken oAuthToken = apiClient.requestJWTUserToken(prop.getProperty("clientId"), prop.getProperty("userId"), scopes, fisPKey.readAllBytes(), 3600);

String accessToken = oAuthToken.getAccessToken();

fisPKey.close();

return accessToken;

}