Expose the instrumentHTTP function as part of the module's public API

js/modules/k6/experimental/tracing/module.go

@@ -45,7 +45,8 @@ func (*RootModule) NewModuleInstance(vu modules.VU) modules.Instance {
 func (mi *ModuleInstance) Exports() modules.Exports {
 	return modules.Exports{
 		Named: map[string]interface{}{
-			"Client": mi.NewClient,
+			"Client":         mi.NewClient,
+			"instrumentHTTP": mi.InstrumentHTTP,
 		},
 	}
 }

samples/experimental/tracing/tracing-instrumentHTTP.js

@@ -0,0 +1,24 @@
+import http from "k6/http";
+import { check } from "k6";
+import tracing from "k6/experimental/tracing";
+
+// instrumentHTTP will ensure that all requests made by the http module
+// will be traced. The first argument is a configuration object that
+// can be used to configure the tracer.
+//
+// Currently supported HTTP methods are: get, post, put, patch, head,
+// del, options, and request.
+tracing.instrumentHTTP({
+	propagator: "w3c",
+});
+
+export default () => {
+	let res = http.get("http://httpbin.org/get", {
+		headers: {
+			"X-Example-Header": "instrumented/get",
+		},
+	});
+	check(res, {
+		"status is 200": (r) => r.status === 200,
+	});
+};