withSession in typescript

demo_client_with_session.ts

// tslint:disable:no-console
import { AttributeIds, ClientSession, OPCUAClient } from "node-opcua";

const endpointUrl = "opc.tcp://opcuademo.sterfive.com:26543";

async function main() {

    try {

        const client = OPCUAClient.create({clientName: "DemoClient"});
        await client.withSessionAsync(endpointUrl, async (session: ClientSession) => {

            console.log("sessionId = ", session.sessionId.toString());

            const dataValue = await session.read({nodeId: session.sessionId, attributeId: AttributeIds.Value});
            console.log("value = ", dataValue.toString());
        });

    } catch (err) {
        console.log("Error = ", err);
    }
}

main();