Add OCR, add configuration

server/events/ocr.js

@@ -0,0 +1,23 @@
+import { recognize } from 'node-tesseract-ocr';
+import { serialize } from 'bson';
+
+export default async function runOCR(client, eventData) {
+    const config = {
+        lang: 'eng',
+        oem: 3,
+        psm: 3,
+      };
+
+      const ocrText = await recognize(eventData.url, config);
+
+      const jsonData = {
+        op: 6,
+        id: eventData.id,
+        ocrText
+      };
+
+      const bsonData = serialize(jsonData);
+      client.write(bsonData);
+
+      return;
+}