Router worker performs free tier limiting

.changeset/tidy-bobcats-lose.md

@@ -0,0 +1,5 @@
+---
+"@cloudflare/workers-shared": minor
+---
+
+Limit free tier requests in the Router worker

packages/workers-shared/router-worker/src/analytics.ts

@@ -35,6 +35,8 @@ type Data = {
 	staticRoutingDecision?: STATIC_ROUTING_DECISION;
 	// double7 - Whether the request was blocked by abuse mitigation or not
 	abuseMitigationBlocked?: boolean;
+	// double8 - User worker invocation denied due to free tier limiting
+	userWorkerFreeTierLimiting?: boolean;
 
 	// -- Blobs --
 	// blob1 - Hostname of the request
@@ -93,6 +95,7 @@ export class Analytics {
 					: Number(this.data.userWorkerAhead),
 				this.data.staticRoutingDecision ?? STATIC_ROUTING_DECISION.NOT_PROVIDED, // double6
 				this.data.abuseMitigationBlocked ? 1 : 0, // double7
+				this.data.userWorkerFreeTierLimiting ? 1 : 0, // double8
 			],
 			blobs: [
 				this.data.hostname?.substring(0, 256), // blob1 - trim to 256 bytes

packages/workers-shared/router-worker/src/configuration.ts

@@ -1,6 +1,8 @@
-import type { RouterConfig } from "../../utils/types";
+import type { EyeballRouterConfig, RouterConfig } from "../../utils/types";
 
-export const applyConfigurationDefaults = (
+type RequiredEyeballRouterConfig = Required<Exclude<EyeballRouterConfig, null>>;
+
+export const applyRouterConfigDefaults = (
 	configuration?: RouterConfig
 ): Required<RouterConfig> => {
 	return {
@@ -15,3 +17,11 @@ export const applyConfigurationDefaults = (
 		},
 	};
 };
+
+export const applyEyeballConfigDefaults = (
+	eyeballConfiguration?: EyeballRouterConfig
+): RequiredEyeballRouterConfig => {
+	return {
+		limitedAssetsOnly: eyeballConfiguration?.limitedAssetsOnly ?? false,
+	};
+};