support SSL?

[Arco1ris]

When trying to connect to the collector, The agent needs to add a certificate, so I made the following changes

RemoteClient.prototype.connectRemote = function(directServer) {
    const filePath = path.join(__dirname, "../ca.crt");
    const caFile = fs.readFileSync(filePath);
    const channelCreds = grpc.credentials.createSsl(caFile);
    this._managemenet = new ManagementService.ManagementServiceClient(directServer, channelCreds);
    this._tracerSender = new TraceSendService.TraceSegmentReportServiceClient(directServer, grpc.credentials.createInsecure());
};

After starting the project, I found that Endpoint information is Empty。

I want to confirm two questions:

1. If i want to add a certificate, is it correct? If not, how should it be added?
2. Why the Endpoint is empty, If it is not caused by the certificat, what could it be?