Rate limit r2 bulk put (#11367)

Author: vicb

.changeset/wide-women-jump.md

@@ -0,0 +1,5 @@
+---
+"wrangler": patch
+---
+
+Rate limit r2 bulk put

packages/wrangler/src/r2/object.ts

@@ -569,9 +569,20 @@ export const r2BulkPutCommand = createCommand({
 				}
 			);
 		} else {
+			// Cloudflare API rate limits
+			// 1200 requests per 5 minutes
+			// We add some headroom (100 requests) for other API usage
+			// ref: https://developers.cloudflare.com/fundamentals/api/reference/limits/
+			const API_RATE_LIMIT_WINDOWS_MS = 5 * 60 * 1_000; // 5 minutes
+			const API_RATE_LIMIT_REQUESTS = 1_200 - 100;
+
 			const accountId = await requireAuth(config);
 
-			const queue = new PQueue({ concurrency });
+			const queue = new PQueue({
+				concurrency,
+				interval: API_RATE_LIMIT_WINDOWS_MS,
+				intervalCap: API_RATE_LIMIT_REQUESTS,
+			});
 
 			await queue.addAll(
 				entries.map((entry, index) => async () => {