Indexing Documents into Elasticsearch

Welcome to indexing! In Elasticsearch, indexing is the process of storing data into an index to make it searchable.

Think of it like adding a new book to a library's catalog. You provide the book's details, and the library stores them in a way that makes the book easy to find later.

Before we dive in, let's quickly recap two core concepts:

• Document: A basic unit of information in Elasticsearch, similar to a row in a traditional database. It's usually a JSON object.
• Index: A collection of documents that have similar characteristics. It's like a database in a relational world.

When you index, you add a document to an index.