feat(dropbox): add new folders trigger

packages/backend/src/apps/dropbox/index.js

@@ -2,6 +2,7 @@ import defineApp from '../../helpers/define-app.js';
 import addAuthHeader from './common/add-auth-header.js';
 import auth from './auth/index.js';
 import actions from './actions/index.js';
+import triggers from './triggers/index.js';
 
 export default defineApp({
   name: 'Dropbox',
@@ -15,4 +16,5 @@ export default defineApp({
   beforeRequest: [addAuthHeader],
   auth,
   actions,
+  triggers,
 });

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

@@ -0,0 +1,3 @@
+import newFolders from './new-folders/index.js';
+
+export default [newFolders];

packages/backend/src/apps/dropbox/triggers/new-folders/index.js

@@ -0,0 +1,61 @@
+import defineTrigger from '../../../../helpers/define-trigger.js';
+
+export default defineTrigger({
+  name: 'New folders',
+  key: 'newFolders',
+  pollInterval: 15,
+  description:
+    'Triggers when any new folder is added. Ensure that the number of files/folders within the monitored directory remains below 4000.',
+  arguments: [
+    {
+      label: 'Folder',
+      key: 'folderPath',
+      type: 'string',
+      required: true,
+      description:
+        'Enter the folder path that you want to follow, like /TextFiles or /Documents/Taxes.',
+      variables: true,
+    },
+  ],
+
+  async run($) {
+    const folderPath = $.step.parameters.folderPath;
+    let endpoint = '/2/files/list_folder';
+    let next = false;
+
+    const params = {
+      path: folderPath,
+      recursive: false,
+      include_deleted: false,
+      include_has_explicit_shared_members: false,
+      include_mounted_folders: true,
+      limit: 2000,
+      include_non_downloadable_files: true,
+    };
+
+    do {
+      const { data } = await $.http.post(endpoint, params);
+
+      if (data.has_more) {
+        endpoint += '/continue';
+        params.cursor = data.cursor;
+        next = data.has_more;
+      } else {
+        next = false;
+      }
+
+      if (data.entries?.length) {
+        for (const entry of data.entries.reverse()) {
+          if (entry['.tag'] === 'folder') {
+            $.pushTriggerItem({
+              raw: entry,
+              meta: {
+                internalId: entry.id,
+              },
+            });
+          }
+        }
+      }
+    } while (next);
+  },
+});