feat(mailchimp): add new unsubscribers trigger

packages/backend/src/apps/mailchimp/triggers/index.js

@@ -1,3 +1,4 @@
 import newSubscribers from './new-subscribers/index.js';
+import newUnsubscribers from './new-unsubscribers/index.js';
 
-export default [newSubscribers];
+export default [newSubscribers, newUnsubscribers];

packages/backend/src/apps/mailchimp/triggers/new-unsubscribers/index.js

@@ -0,0 +1,108 @@
+import Crypto from 'crypto';
+import defineTrigger from '../../../../helpers/define-trigger.js';
+
+export default defineTrigger({
+  name: 'New unsubscribers',
+  key: 'newUnsubscribers',
+  type: 'webhook',
+  description: 'Triggers when any existing subscriber opts out of an audience.',
+  arguments: [
+    {
+      label: 'Audience',
+      key: 'audienceId',
+      type: 'dropdown',
+      required: true,
+      description: '',
+      variables: true,
+      source: {
+        type: 'query',
+        name: 'getDynamicData',
+        arguments: [
+          {
+            name: 'key',
+            value: 'listAudiences',
+          },
+        ],
+      },
+    },
+  ],
+
+  async run($) {
+    const dataItem = {
+      raw: $.request.body,
+      meta: {
+        internalId: Crypto.randomUUID(),
+      },
+    };
+
+    $.pushTriggerItem(dataItem);
+  },
+
+  async testRun($) {
+    const audienceId = $.step.parameters.audienceId;
+
+    const computedWebhookEvent = {
+      data: {
+        id: Crypto.randomUUID(),
+        email: 'user@automatisch.io',
+        action: 'unsub',
+        ip_opt: '127.0.0.1',
+        merges: {
+          EMAIL: 'user@automatisch.io',
+          FNAME: 'FNAME',
+          LNAME: 'LNAME',
+          PHONE: '',
+          ADDRESS: '',
+          BIRTHDAY: '',
+        },
+        reason: 'manual',
+        web_id: Crypto.randomUUID(),
+        list_id: audienceId,
+        email_type: 'html',
+        campaign_id: Crypto.randomUUID(),
+      },
+      type: 'unsubscribe',
+      fired_at: new Date().toLocaleString(),
+    };
+
+    const dataItem = {
+      raw: computedWebhookEvent,
+      meta: {
+        internalId: computedWebhookEvent.id,
+      },
+    };
+
+    $.pushTriggerItem(dataItem);
+  },
+
+  async registerHook($) {
+    const audienceId = $.step.parameters.audienceId;
+
+    const payload = {
+      url: $.webhookUrl,
+      events: {
+        unsubscribe: true,
+      },
+      sources: {
+        user: true,
+        admin: true,
+        api: true,
+      },
+    };
+
+    const response = await $.http.post(
+      `/3.0/lists/${audienceId}/webhooks`,
+      payload
+    );
+
+    await $.flow.setRemoteWebhookId(response.data.id);
+  },
+
+  async unregisterHook($) {
+    const audienceId = $.step.parameters.audienceId;
+
+    await $.http.delete(
+      `/3.0/lists/${audienceId}/webhooks/${$.flow.remoteWebhookId}`
+    );
+  },
+});

packages/docs/pages/apps/mailchimp/triggers.md

@@ -3,6 +3,8 @@ favicon: /favicons/mailchimp.svg
 items:
   - name: New subscribers
     desc: Triggers when a new subscriber is appended to an audience.
+  - name: New unsubscribers
+    desc: Triggers when any existing subscriber opts out of an audience.
 ---
 
 <script setup>