Unable to add documents in Meilisearch after fetching from Appwrite

I am fetching the stored data from Appwrite and trying to add this to the Meilisearch. But this is not working. I am doing the project for octernship.

Where, const app = express();

What isn't working?:

What's the error you're getting?

Data is not saving to Meilisearch only the index name is saving with 0 documents. This is the main issue.