[service-utils] Allow sending client-side usageV2 events (#6207)

Author: arcoraven

.changeset/metal-crabs-beg.md

@@ -0,0 +1,5 @@
+---
+"@thirdweb-dev/service-utils": patch
+---
+
+[service-utils] Allow client-side usageV2 reporting

packages/service-utils/src/cf-worker/usageV2.ts

@@ -1,5 +1,4 @@
-import type { ServiceName } from "../core/services.js";
-import type { UsageV2Event } from "../core/usageV2.js";
+import type { UsageV2Event, UsageV2Source } from "../core/usageV2.js";
 
 /**
  * Send events to Kafka.
@@ -20,21 +19,34 @@ export async function sendUsageV2Events(
   events: UsageV2Event[],
   options: {
     environment: "development" | "production";
-    productName: ServiceName;
-    serviceKey: string;
+    source: UsageV2Source;
+    serviceKey?: string;
   },
 ): Promise<void> {
   const baseUrl =
     options.environment === "production"
       ? "https://u.thirdweb.com"
       : "https://u.thirdweb-dev.com";
 
-  const resp = await fetch(`${baseUrl}/usage-v2/${options.productName}`, {
-    method: "POST",
-    headers: {
+  // Unauthed calls are routed to the /client path
+  let url: string;
+  let headers: HeadersInit;
+  if (options.serviceKey) {
+    url = `${baseUrl}/usage-v2/${options.source}`;
+    headers = {
       "Content-Type": "application/json",
       "x-service-api-key": options.serviceKey,
-    },
+    };
+  } else {
+    url = `${baseUrl}/usage-v2/${options.source}/client`;
+    headers = {
+      "Content-Type": "application/json",
+    };
+  }
+
+  const resp = await fetch(url, {
+    method: "POST",
+    headers,
     body: JSON.stringify({ events }),
   });