queue consumer setting max_batch_timeout, batch-timeout should accept 0

.changeset/old-weeks-end.md

@@ -0,0 +1,5 @@
+---
+"wrangler": patch
+---
+
+fix: queue consumer max_batch_timeout should accept a 0 value

packages/wrangler/src/__tests__/deploy.test.ts

@@ -9734,6 +9734,70 @@ export default{
 		`);
 		});
 
+		it("should support queue consumer with max_batch_timeout of 0", async () => {
+			writeWranglerToml({
+				queues: {
+					consumers: [
+						{
+							queue: queueName,
+							dead_letter_queue: "myDLQ",
+							max_batch_size: 5,
+							max_batch_timeout: 0,
+							max_retries: 10,
+							max_concurrency: null,
+						},
+					],
+				},
+			});
+			await fs.promises.writeFile("index.js", `export default {};`);
+			mockSubDomainRequest();
+			mockUploadWorkerRequest();
+
+			const consumerId = "consumer-id";
+			const existingQueue: QueueResponse = {
+				queue_id: queueId,
+				queue_name: queueName,
+				created_on: "",
+				producers: [],
+				consumers: [
+					{
+						type: "worker",
+						script: "test-name",
+						consumer_id: consumerId,
+						settings: {},
+					},
+				],
+				producers_total_count: 0,
+				consumers_total_count: 0,
+				modified_on: "",
+			};
+			mockGetQueueByName(queueName, existingQueue);
+			mockPutQueueConsumerById(queueId, queueName, consumerId, {
+				dead_letter_queue: "myDLQ",
+				type: "worker",
+				script_name: "test-name",
+				settings: {
+					batch_size: 5,
+					max_retries: 10,
+					max_wait_time_ms: 0,
+				},
+			});
+
+			await runWrangler("deploy index.js");
+			expect(std.out).toMatchInlineSnapshot(`
+			"Total Upload: xx KiB / gzip: xx KiB
+			Uploaded test-name (TIMINGS)
+			Published test-name (TIMINGS)
+			  https://test-name.test-sub-domain.workers.dev
+			  Consumer for queue1
+			Current Deployment ID: Galaxy-Class
+			Current Version ID: Galaxy-Class
+
+
+			Note: Deployment ID has been renamed to Version ID. Deployment ID is present to maintain compatibility with the previous behavior of this command. This output will change in a future version of Wrangler. To learn more visit: https://developers.cloudflare.com/workers/configuration/versions-and-deployments"
+		`);
+		});
+
 		it("consumer should error when a queue doesn't exist", async () => {
 			writeWranglerToml({
 				queues: {

packages/wrangler/src/__tests__/queues.test.ts

@@ -580,6 +580,49 @@ describe("wrangler", () => {
 					`);
 				});
 
+				it("should add a consumer with batchTimeout of 0", async () => {
+					const queueNameResolveRequest = mockGetQueueByNameRequest(
+						expectedQueueName,
+						{
+							queue_id: expectedQueueId,
+							queue_name: expectedQueueName,
+							created_on: "",
+							producers: [],
+							consumers: [],
+							producers_total_count: 1,
+							consumers_total_count: 0,
+							modified_on: "",
+						}
+					);
+
+					const expectedBody: PostTypedConsumerBody = {
+						script_name: "testScript",
+						type: "worker",
+						environment_name: "myEnv",
+						settings: {
+							batch_size: 20,
+							max_retries: 3,
+							max_wait_time_ms: 0,
+							max_concurrency: 3,
+							retry_delay: 10,
+						},
+						dead_letter_queue: "myDLQ",
+					};
+					const postRequest = mockPostRequest(expectedQueueId, expectedBody);
+
+					await runWrangler(
+						"queues consumer add testQueue testScript --env myEnv --batch-size 20 --batch-timeout 0 --message-retries 3 --max-concurrency 3 --dead-letter-queue myDLQ --retry-delay-secs=10"
+					);
+
+					expect(queueNameResolveRequest.count).toEqual(1);
+					expect(postRequest.count).toEqual(1);
+
+					expect(std.out).toMatchInlineSnapshot(`
+						"Adding consumer to queue testQueue.
+						Added consumer to queue testQueue."
+					`);
+				});
+
 				it("should show an error when two retry delays are set", async () => {
 					const expectedBody: PostTypedConsumerBody = {
 						script_name: "testScript",

packages/wrangler/src/deploy/deploy.ts

@@ -1098,9 +1098,10 @@ export async function updateQueueConsumers(
 				settings: {
 					batch_size: consumer.max_batch_size,
 					max_retries: consumer.max_retries,
-					max_wait_time_ms: consumer.max_batch_timeout
-						? 1000 * consumer.max_batch_timeout
-						: undefined,
+					max_wait_time_ms:
+						consumer.max_batch_timeout !== undefined
+							? 1000 * consumer.max_batch_timeout
+							: undefined,
 					max_concurrency: consumer.max_concurrency,
 					retry_delay: consumer.retry_delay,
 				},

packages/wrangler/src/queues/cli/commands/consumer/worker/add.ts

@@ -61,9 +61,10 @@ function createBody(
 		settings: {
 			batch_size: args.batchSize,
 			max_retries: args.messageRetries,
-			max_wait_time_ms: args.batchTimeout // API expects milliseconds
-				? 1000 * args.batchTimeout
-				: undefined,
+			max_wait_time_ms:
+				args.batchTimeout !== undefined // API expects milliseconds
+					? 1000 * args.batchTimeout
+					: undefined,
 			max_concurrency: args.maxConcurrency,
 			retry_delay: args.retryDelaySecs,
 		},