Added analytics sdk

analytics/sdk.ts

@@ -0,0 +1,63 @@
+import { TrackRequestParams } from "./types";
+
+type AnalyticsBody = Record<string, unknown> & {
+  type: "event" | "request";
+  timestamp: number;
+};
+
+export class AnalyticsSDK {
+  constructor(private readonly apiURL: string) {}
+
+  trackRequest(
+    request: Request,
+    { clientAddress, locale, responseStatus }: TrackRequestParams
+  ) {
+    const userAgent = request.headers.get("User-Agent");
+    const acceptLanguage = request.headers.get("Accept-Language");
+    const { method, url: stringUrl, referrer } = request;
+    const url = new URL(stringUrl);
+
+    this.track({
+      type: "request",
+      timestamp: Date.now(),
+      payload: {
+        user: {
+          address: clientAddress,
+          attributes: {
+            locale,
+          },
+        },
+        request: {
+          method,
+          pathname: url.pathname,
+          referrer,
+          ...(acceptLanguage ? { acceptLanguage } : {}),
+          ...(userAgent ? { userAgent } : {}),
+        },
+        response: {
+          status: responseStatus,
+        },
+      },
+    });
+  }
+
+  trackEvent(eventName: string) {
+    this.track({
+      type: "event",
+      timestamp: Date.now(),
+      eventName,
+    });
+  }
+
+  private async track(body: AnalyticsBody) {
+    try {
+      await fetch(this.apiURL, {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify(body),
+      });
+    } catch (e) {
+      console.warn("Couldn't send analytics", e);
+    }
+  }
+}

analytics/types.ts

@@ -0,0 +1,5 @@
+export type TrackRequestParams = {
+  clientAddress: string;
+  locale: string;
+  responseStatus: number;
+};