Applicationinsights Web TS

npm i --save @microsoft/applicationinsights-web
# Optional plugins (install only what you use):
npm i --save @microsoft/applicationinsights-clickanalytics-js
npm i --save @microsoft/applicationinsights-react-js @microsoft/applicationinsights-react-native @microsoft/applicationinsights-angularplugin-js

# Vite / CRA / Next.js — expose to client via the public env prefix
VITE_APPINSIGHTS_CONNECTION_STRING="InstrumentationKey=...;IngestionEndpoint=https://...;LiveEndpoint=https://..."
NEXT_PUBLIC_APPINSIGHTS_CONNECTION_STRING="InstrumentationKey=..."

import { ApplicationInsights } from "@microsoft/applicationinsights-web";

export const appInsights = new ApplicationInsights({
  config: {
    connectionString: import.meta.env.VITE_APPINSIGHTS_CONNECTION_STRING,
    enableAutoRouteTracking: true,        // SPA route changes -> page views
    enableCorsCorrelation: true,          // propagate Request-Id / traceparent to cross-origin AJAX
    enableRequestHeaderTracking: true,
    enableResponseHeaderTracking: true,
    distributedTracingMode: 2,            // DistributedTracingModes.AI_AND_W3C — emit traceparent for backend correlation
    autoTrackPageVisitTime: true,
    disableFetchTracking: false,          // fetch() is auto-instrumented by default
    excludeRequestFromAutoTrackingPatterns: [/livemetrics\.azure\.com/i]
  }
});

appInsights.loadAppInsights();
appInsights.trackPageView();

<script type="text/javascript" src="https://js.monitor.azure.com/scripts/b/ai.3.gbl.min.js" crossorigin="anonymous"></script>
<script type="text/javascript">
  var appInsights = window.appInsights || function (cfg) {
    /* See: https://learn.microsoft.com/azure/azure-monitor/app/javascript-sdk
       Use the latest snippet from the Microsoft Learn page above — it includes
       backup-CDN failover (cr), SDK-load-failure reporting, and the queue shim
       so calls before SDK ready are not lost. */
  }({ src: "https://js.monitor.azure.com/scripts/b/ai.3.gbl.min.js",
      crossOrigin: "anonymous",
      cfg: { connectionString: "YOUR_CONNECTION_STRING" } });
</script>

// Page views (SPAs that disable enableAutoRouteTracking)
appInsights.trackPageView({ name: "Checkout", uri: "/checkout", properties: { cartSize: 3 } });

// Custom events (user actions, business events)
appInsights.trackEvent({ name: "PurchaseCompleted" }, { orderId: "ord_123", amountUsd: 49.95 });

// Exceptions (caught errors)
try {
  await pay(order);
} catch (err) {
  appInsights.trackException({ exception: err as Error, severityLevel: 3, properties: { orderId: order.id } });
}

// Traces (logs, severity 0=Verbose, 1=Info, 2=Warning, 3=Error, 4=Critical)
appInsights.trackTrace({ message: "Cart hydrated from local storage", severityLevel: 1 });

// Custom metrics (numeric)
appInsights.trackMetric({ name: "checkout.duration_ms", average: 1234 });

// Dependencies (manually-tracked outbound calls — fetch/XHR are auto-tracked)
appInsights.trackDependencyData({
  id: crypto.randomUUID(),
  name: "GET /api/orders",
  duration: 87, success: true, responseCode: 200,
  data: "https://api.example.com/api/orders", target: "api.example.com", type: "Fetch"
});

// User identity (set ONCE per authenticated session — values are PII; do not pass emails)
appInsights.setAuthenticatedUserContext("user-id-123", "tenant-456", /*storeInCookie*/ true);
appInsights.clearAuthenticatedUserContext(); // on logout

// Force send before unload
appInsights.flush();

import type { ITelemetryItem } from "@microsoft/applicationinsights-web";

appInsights.addTelemetryInitializer((item: ITelemetryItem) => {
  item.tags ??= {};
  item.tags["ai.cloud.role"] = "web-shop";
  item.tags["ai.cloud.roleInstance"] = window.location.hostname;
  item.data ??= {};
  item.data["app.version"] = import.meta.env.VITE_APP_VERSION;
  item.data["app.build"] = import.meta.env.VITE_BUILD_SHA;

  // Drop noisy health-check page views
  if (item.baseType === "PageviewData" && item.baseData?.uri?.endsWith("/healthz")) return false;

  // Scrub query-string secrets
  if (item.baseData?.uri) {
    item.baseData.uri = item.baseData.uri.replace(/([?&](token|sig|key)=)[^&]+/gi, "$1REDACTED");
  }
});

import { ClickAnalyticsPlugin } from "@microsoft/applicationinsights-clickanalytics-js";

const clickPlugin = new ClickAnalyticsPlugin();
const appInsights = new ApplicationInsights({
  config: {
    connectionString: import.meta.env.VITE_APPINSIGHTS_CONNECTION_STRING,
    extensions: [clickPlugin],
    extensionConfig: {
      [clickPlugin.identifier]: {
        autoCapture: true,
        dataTags: { useDefaultContentNameOrId: true, customDataPrefix: "data-ai-" },
        urlCollectHash: false,
        behaviorValidator: (b: string) => /^[a-z0-9_]+$/.test(b) ? b : ""
      }
    }
  }
});
appInsights.loadAppInsights();

OTEL_SEMCONV_STABILITY_OPT_IN=gen_ai_latest_experimental

import { ApplicationInsights, SeverityLevel } from "@microsoft/applicationinsights-web";

type GenAiAttrs = Record<string, string | number | boolean | undefined>;

function startGenAiSpan(name: string, attrs: GenAiAttrs) {
  const id = crypto.randomUUID();
  const start = performance.now();
  const baseProps: GenAiAttrs = { "gen_ai.span.id": id, ...attrs };
  return {
    end(success: boolean, extra: GenAiAttrs = {}, error?: Error) {
      const duration = Math.round(performance.now() - start);
      const properties = { ...baseProps, ...extra };
      appInsights.trackDependencyData({
        id, name, duration, success,
        responseCode: error ? 500 : 200,
        type: "GenAI",
        target: String(attrs["gen_ai.provider.name"] ?? "genai"),
        properties: properties as Record<string, string>
      });
      if (error) {
        appInsights.trackException({
          exception: error,
          severityLevel: SeverityLevel.Error,
          properties: { ...properties, "error.type": error.name } as Record<string, string>
        });
      }
    }
  };
}

// Agent invocation
const agentSpan = startGenAiSpan("invoke_agent ResearchAssistant", {
  "gen_ai.operation.name": "invoke_agent",
  "gen_ai.provider.name": "azure.ai.openai",
  "gen_ai.agent.name": "ResearchAssistant",
  "gen_ai.agent.id": "asst_5j66UpCpwteGg4YSxUnt7lPY",
  "gen_ai.request.model": "gpt-4o-mini",
  "server.address": "myresource.openai.azure.com"
});

try {
  // Nested chat completion span
  const chat = startGenAiSpan("chat gpt-4o-mini", {
    "gen_ai.operation.name": "chat",
    "gen_ai.provider.name": "azure.ai.openai",
    "gen_ai.request.model": "gpt-4o-mini"
  });
  const res = await callAzureOpenAi(/* ... */);
  chat.end(true, {
    "gen_ai.response.model": res.model,
    "gen_ai.response.id": res.id,
    "gen_ai.response.finish_reasons": JSON.stringify(res.choices.map(c => c.finish_reason)),
    "gen_ai.usage.input_tokens": res.usage.prompt_tokens,
    "gen_ai.usage.output_tokens": res.usage.completion_tokens,
    "gen_ai.output.type": "text"
  });

  // Nested tool execution span
  const tool = startGenAiSpan("execute_tool getWeather", {
    "gen_ai.operation.name": "execute_tool",
    "gen_ai.tool.name": "getWeather",
    "gen_ai.tool.type": "function",
    "gen_ai.tool.call.id": "call_abc123"
  });
  const toolResult = await runGetWeather({ location: "SF" });
  tool.end(true);

  agentSpan.end(true, {
    "gen_ai.usage.input_tokens": res.usage.prompt_tokens,
    "gen_ai.usage.output_tokens": res.usage.completion_tokens
  });
} catch (err) {
  agentSpan.end(false, { "error.type": (err as Error).name }, err as Error);
}