Can I send a custom Error message from server to client GRPC?

Question

I have created a simple GRPC server and client .

What i want to do is to create a custom error in the server and pass it to the client. My code looks as follows:<

Answer 1

1.Yes 2.Maybe

Avoid sending special objects (like new Error) over the wire. Send simple object with an error property and look for its value on the other end. See http://json.org/ to have an overview of easy transferable data.

inside Server.js try

function sayHello(call, callback) {

    try {
        var myCustomError = {};
        myCustomError.newStatus = 401;
        myCustomError.newMessage = 'custom unAuthorized error';
        console.log(Object.getOwnPropertyNames(myCustomError ));
        console.log(myCustomError);
        callback(null, {error: myCustomError, message: ""});

    } catch(e) {
        callback(e);
    }
}

inside the Client.js

client.sayHello({name: user}, function(err, response) {
    var myCustomError= response.error;
    if (myCustomError) {
        console.log(Object.getOwnPropertyNames(myCustomError));
        console.log(myCustomError);
    }
});