feat(rss): add new items in feed trigger

packages/backend/src/apps/rss/assets/favicon.svg

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+<svg xmlns="http://www.w3.org/2000/svg"
+aria-label="RSS" role="img"
+viewBox="0 0 512 512"><rect
+width="512" height="512"
+rx="15%"
+fill="#f80"/><circle cx="145" cy="367" r="35" fill="#fff"/><path fill="none" stroke="#fff" stroke-width="60" d="M109 241c89 0 162 73 162 162m114 0c0-152-124-276-276-276"/></svg>

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

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+import defineApp from '../../helpers/define-app';
+
+export default defineApp({
+  name: 'RSS',
+  key: 'rss',
+  iconUrl: '{BASE_URL}/apps/rss/assets/favicon.svg',
+  authDocUrl: 'https://automatisch.io/docs/connections/rss',
+  supportsConnections: false,
+  baseUrl: '',
+  apiBaseUrl: '',
+  primaryColor: 'ff8800',
+  beforeRequest: [],
+});

packages/backend/src/apps/rss/triggers/new-items-in-feed/index.ts

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+import defineTrigger from '../../../../helpers/define-trigger';
+import newItemsInFeed from './new-items-in-feed';
+
+export default defineTrigger({
+  name: 'New items in feed',
+  key: 'newItemsInFeed',
+  description: 'Triggers on new RSS feed items.',
+  pollInterval: 15,
+  substeps: [
+    {
+      key: 'chooseTrigger',
+      name: 'Set up trigger',
+      arguments: [
+        {
+          label: 'Feed URL',
+          key: 'feedUrl',
+          type: 'string',
+          required: true,
+          description: 'Paste your publicly accessible RSS URL here.',
+          variables: false,
+        },
+      ],
+    },
+    {
+      key: 'testStep',
+      name: 'Test trigger',
+    },
+  ],
+
+  async run($) {
+    await newItemsInFeed($);
+  },
+});

packages/backend/src/apps/rss/triggers/new-items-in-feed/new-items-in-feed.ts

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+import { IGlobalVariable } from '@automatisch/types';
+import { XMLParser } from 'fast-xml-parser';[]
+
+const newItemsInFeed = async ($: IGlobalVariable) => {
+  const { data } = await $.http.get($.step.parameters.feedUrl as string);
+  const parser = new XMLParser();
+  const parsedData = parser.parse(data);
+
+  for (const item of parsedData.rss.channel.item) {
+    if ($.flow.isAlreadyProcessed(item.guid))
+      return;
+
+    const dataItem = {
+      raw: item,
+      meta: {
+        internalId: item.guid
+      }
+    }
+
+    $.pushTriggerItem(dataItem);
+  }
+};
+
+export default newItemsInFeed;