feat(ghost): add new post published trigger (#1403)

packages/backend/src/apps/ghost/index.ts

@@ -2,6 +2,7 @@ import defineApp from '../../helpers/define-app';
 import addAuthHeader from './common/add-auth-header';
 import setBaseUrl from './common/set-base-url';
 import auth from './auth';
+import triggers from './triggers';
 
 export default defineApp({
   name: 'Ghost',
@@ -14,4 +15,5 @@ export default defineApp({
   supportsConnections: true,
   beforeRequest: [setBaseUrl, addAuthHeader],
   auth,
+  triggers,
 });

packages/backend/src/apps/ghost/triggers/index.ts

@@ -0,0 +1,3 @@
+import newPostPublished from './new-post-published';
+
+export default [newPostPublished];

packages/backend/src/apps/ghost/triggers/new-post-published/index.ts

@@ -0,0 +1,55 @@
+import Crypto from 'crypto';
+import isEmpty from 'lodash/isEmpty';
+import defineTrigger from '../../../../helpers/define-trigger';
+
+export default defineTrigger({
+  name: 'New post published',
+  key: 'newPostPublished',
+  type: 'webhook',
+  description: 'Triggers when a new post is published.',
+
+  async run($) {
+    const dataItem = {
+      raw: $.request.body,
+      meta: {
+        internalId: Crypto.randomUUID(),
+      },
+    };
+
+    $.pushTriggerItem(dataItem);
+  },
+
+  async testRun($) {
+    const lastExecutionStep = await $.getLastExecutionStep();
+
+    if (!isEmpty(lastExecutionStep?.dataOut)) {
+      $.pushTriggerItem({
+        raw: lastExecutionStep.dataOut,
+        meta: {
+          internalId: '',
+        },
+      });
+    }
+  },
+
+  async registerHook($) {
+    const payload = {
+      webhooks: [
+        {
+          event: 'post.published',
+          target_url: $.webhookUrl,
+          name: `Flow ID: ${$.flow.id}`,
+        },
+      ],
+    };
+
+    const response = await $.http.post('/admin/webhooks/', payload);
+    const id = response.data.webhooks[0].id;
+
+    await $.flow.setRemoteWebhookId(id);
+  },
+
+  async unregisterHook($) {
+    await $.http.delete(`/admin/webhooks/${$.flow.remoteWebhookId}/`);
+  },
+});