src/main/java/com/authlete/jaxrs/api/AuthleteApiImpl.java
@Override
    public TokenResponse token(TokenRequest request) throws AuthleteApiException
    {
        return executeApiCall(
                new ServicePostApiCaller<TokenResponse>(
                        TokenResponse.class, request, AUTH_TOKEN_API_PATH));
    }
@Override
    public TokenResponse token(TokenRequest request) throws AuthleteApiException
    {
        return executeApiCall(
                new ServicePostApiCaller<TokenResponse>(
                        TokenResponse.class, request, AUTH_TOKEN_API_PATH));
    }
Call {@code /api/auth/token} API.