From aae172be414fb832b6036047235d797689e7192f Mon Sep 17 00:00:00 2001
From: Gabriel Miranda <gabriel@resend.com>
Date: Thu, 3 Sep 2026 09:32:19 -0300
Subject: [PATCH] feat(webhooks): add events.replay()

---
 package.json                                  |  2 +-
 src/webhooks/events/events.ts                 | 16 ++++
 src/webhooks/interfaces/index.ts              |  5 ++
 .../replay-webhook-event.interface.ts         | 14 ++++
 src/webhooks/webhooks.spec.ts                 | 75 +++++++++++++++++++
 5 files changed, 111 insertions(+), 1 deletion(-)
 create mode 100644 src/webhooks/interfaces/replay-webhook-event.interface.ts

diff --git a/package.json b/package.json
index 1f068c50..c525eaba 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "resend",
-  "version": "6.25.0",
+  "version": "6.26.0",
   "description": "Node.js library for the Resend API",
   "main": "./dist/index.cjs",
   "module": "./dist/index.mjs",
diff --git a/src/webhooks/events/events.ts b/src/webhooks/events/events.ts
index abea149e..6d9002da 100644
--- a/src/webhooks/events/events.ts
+++ b/src/webhooks/events/events.ts
@@ -10,6 +10,11 @@ import type {
   ListWebhookEventsResponse,
   ListWebhookEventsResponseSuccess,
 } from '../interfaces/list-webhook-events.interface';
+import type {
+  ReplayWebhookEventOptions,
+  ReplayWebhookEventResponse,
+  ReplayWebhookEventResponseSuccess,
+} from '../interfaces/replay-webhook-event.interface';
 import { Attempts } from './attempts/attempts';
 
 export class Events {
@@ -38,4 +43,15 @@ export class Events {
     );
     return data;
   }
+
+  async replay(
+    options: ReplayWebhookEventOptions,
+  ): Promise<ReplayWebhookEventResponse> {
+    const { webhookId, eventId } = options;
+
+    const data = await this.resend.post<ReplayWebhookEventResponseSuccess>(
+      `/webhooks/${webhookId}/events/${eventId}/replay`,
+    );
+    return data;
+  }
 }
diff --git a/src/webhooks/interfaces/index.ts b/src/webhooks/interfaces/index.ts
index 7e3a4d31..8e92956a 100644
--- a/src/webhooks/interfaces/index.ts
+++ b/src/webhooks/interfaces/index.ts
@@ -36,6 +36,11 @@ export type {
   RemoveWebhookResponse,
   RemoveWebhookResponseSuccess,
 } from './remove-webhook.interface';
+export type {
+  ReplayWebhookEventOptions,
+  ReplayWebhookEventResponse,
+  ReplayWebhookEventResponseSuccess,
+} from './replay-webhook-event.interface';
 export type {
   UpdateWebhookOptions,
   UpdateWebhookResponse,
diff --git a/src/webhooks/interfaces/replay-webhook-event.interface.ts b/src/webhooks/interfaces/replay-webhook-event.interface.ts
new file mode 100644
index 00000000..e0284b01
--- /dev/null
+++ b/src/webhooks/interfaces/replay-webhook-event.interface.ts
@@ -0,0 +1,14 @@
+import type { Response } from '../../interfaces';
+
+export interface ReplayWebhookEventOptions {
+  webhookId: string;
+  eventId: string;
+}
+
+export interface ReplayWebhookEventResponseSuccess {
+  object: 'webhook_event';
+  id: string;
+}
+
+export type ReplayWebhookEventResponse =
+  Response<ReplayWebhookEventResponseSuccess>;
diff --git a/src/webhooks/webhooks.spec.ts b/src/webhooks/webhooks.spec.ts
index cf871150..7cd86d21 100644
--- a/src/webhooks/webhooks.spec.ts
+++ b/src/webhooks/webhooks.spec.ts
@@ -14,6 +14,7 @@ import type { ListWebhookEventAttemptsResponseSuccess } from './interfaces/list-
 import type { ListWebhookEventsResponseSuccess } from './interfaces/list-webhook-events.interface';
 import type { ListWebhooksResponseSuccess } from './interfaces/list-webhooks.interface';
 import type { RemoveWebhookResponseSuccess } from './interfaces/remove-webhook.interface';
+import type { ReplayWebhookEventResponseSuccess } from './interfaces/replay-webhook-event.interface';
 import type {
   UpdateWebhookOptions,
   UpdateWebhookResponseSuccess,
@@ -379,6 +380,80 @@ describe('Webhooks', () => {
     });
   });
 
+  describe('events.replay', () => {
+    const webhookId = '430eed87-632a-4ea6-90db-0aace67ec228';
+    const eventId = 'msg_1srOrx2ZWZBpBUvZwXKQmoEYga2';
+
+    it('replays an event', async () => {
+      const response: ReplayWebhookEventResponseSuccess = {
+        object: 'webhook_event',
+        id: eventId,
+      };
+
+      fetchMock.mockOnce(JSON.stringify(response), {
+        status: 200,
+        headers: {
+          'content-type': 'application/json',
+        },
+      });
+
+      const resend = new Resend('re_zKa4RCko_Lhm9ost2YjNCctnPjbLw8Nop');
+
+      const result = await resend.webhooks.events.replay({
+        webhookId,
+        eventId,
+      });
+      expect(result).toEqual({
+        data: response,
+        error: null,
+        headers: {
+          'content-type': 'application/json',
+        },
+      });
+
+      expect(fetchMock).toHaveBeenCalledWith(
+        `https://api.resend.com/webhooks/${webhookId}/events/${eventId}/replay`,
+        expect.objectContaining({
+          method: 'POST',
+          headers: expect.any(Headers),
+        }),
+      );
+    });
+
+    describe('when event not found', () => {
+      it('returns error', async () => {
+        const response: ErrorResponse = {
+          name: 'not_found',
+          message: 'Webhook event not found',
+          statusCode: 404,
+        };
+
+        fetchMock.mockOnce(JSON.stringify(response), {
+          status: 404,
+          headers: {
+            'content-type': 'application/json',
+          },
+        });
+
+        const resend = new Resend('re_zKa4RCko_Lhm9ost2YjNCctnPjbLw8Nop');
+
+        const result = resend.webhooks.events.replay({ webhookId, eventId });
+
+        await expect(result).resolves.toEqual({
+          data: null,
+          error: {
+            message: 'Webhook event not found',
+            name: 'not_found',
+            statusCode: 404,
+          },
+          headers: {
+            'content-type': 'application/json',
+          },
+        });
+      });
+    });
+  });
+
   describe('events.attempts.list', () => {
     const webhookId = '430eed87-632a-4ea6-90db-0aace67ec228';
     const eventId = 'msg_1srOrx2ZWZBpBUvZwXKQmoEYga2';