feat(reddit): add new posts matching search trigger

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

@@ -1,6 +1,7 @@
 import defineApp from '../../helpers/define-app';
 import addAuthHeader from './common/add-auth-header';
 import auth from './auth';
+import triggers from './triggers';
 
 export default defineApp({
   name: 'Reddit',
@@ -13,4 +14,5 @@ export default defineApp({
   supportsConnections: true,
   beforeRequest: [addAuthHeader],
   auth,
+  triggers,
 });

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

@@ -0,0 +1,3 @@
+import newPostsMatchingSearch from './new-posts-matching-search';
+
+export default [newPostsMatchingSearch];

packages/backend/src/apps/reddit/triggers/new-posts-matching-search/index.ts

@@ -0,0 +1,48 @@
+import defineTrigger from '../../../../helpers/define-trigger';
+
+export default defineTrigger({
+  name: 'New posts matching search',
+  key: 'newPostsMatchingSearch',
+  pollInterval: 15,
+  description: 'Triggers when a search string matches a new post.',
+  arguments: [
+    {
+      label: 'Search Query',
+      key: 'searchQuery',
+      type: 'string' as const,
+      required: true,
+      description:
+        'The term or expression to look for, restricted to 512 characters. If your query contains periods (e.g., automatisch.io), ensure it is enclosed in quotes ("automatisch.io").',
+      variables: true,
+    },
+  ],
+
+  async run($) {
+    const { searchQuery } = $.step.parameters;
+    const params = {
+      q: searchQuery,
+      type: 'link',
+      sort: 'new',
+      limit: 100,
+      after: undefined as unknown as string,
+    };
+
+    do {
+      const { data } = await $.http.get('/search', {
+        params,
+      });
+      params.after = data.data.after;
+
+      if (data.data.children?.length) {
+        for (const item of data.data.children) {
+          $.pushTriggerItem({
+            raw: item,
+            meta: {
+              internalId: item.data.id,
+            },
+          });
+        }
+      }
+    } while (params.after);
+  },
+});