How to get Application Insights operation id in javascript?

Question

I have an Azure Function app written in javascript that has Application Insights integrated:

const AppInsights = require("applicationinsights");

AppInsights.setup(appInsightsInstrumentationKey);
AppInsights.defaultClient.context.tags[
    AppInsights.defaultClient.context.keys.cloudRole
        ] = "My back-end";
AppInsights.start();

The module version is 1.7.4.

I do need to access the current operation id to send it to my custom log for correlation with AI logs in Azure. In my functions I tried this:

var telemetry = appInsights.defaultClient;
var oid = telemetry.context.tags["ai.operation.id"]; // does not work
var oid = telemetry.context.operation.id; // does not work

Nevertheless, AI collects it somehow so I can see it in Azure portal:

How can I access operation_id value at run-time in my Azure functions?

Answer 1

You can give it a try with this line of code:

//operation id
var s = client.context.keys["operationId"];

I found it via debug, the screenshot as below: