// 获取Client实例
FlowableClient client = FlowableClient.getInstance();
// 调用connect方法配置连接地址、用户名、密码
client.connect(Constants.EndPoint, Constants.USERNAME, Constants.PASSWORD)
// 通过FlowableClient实例获取对应的API对象
EngineAPI engineAPI = client.getEngineAPI();
// 使用具体的API方法获取数据
EngineInfo engineInfo = engineAPI.getEngineInfo();

EngineAPI engineAPI = FlowableClient.getInstance().connect(Constants.EndPoint, Constants.USERNAME, Constants.PASSWORD).getEngineAPI();