Spring Boot Elasticsearch Demo

This project shows how to build a Spring Boot application using Elasticsearch for storage and retrieval of data.

Built With

• Java 17
• Spring Boot 3.1.2
• Spring Data Elasticsearch
• Elasticsearch 7.16.1

Usage

The application exposes REST endpoints for CRUD operations on a Book entity that is persisted in Elasticsearch.

Some key components:

• Spring Data Elasticsearch - Provides integration with Elasticsearch
• BookRepository - Interface extending ElasticsearchRepository for CRUD ops
• BookService - Business logic for creating/updating/deleting Books
• BookController - REST controller exposing endpoints

Running Locally

Start Elasticsearch

Download and install Elasticsearch locally, then start it:

Step 1: Pull Elasticsearch Image

docker pull docker.elastic.co/elasticsearch/elasticsearch:7.16.1

Step 2: Run Elasticsearch Container

docker run -d --name elasticsearch -p 9200:9200 -p 9300:9300 \
-e "discovery.type=single-node" \
docker.elastic.co/elasticsearch/elasticsearch:7.16.1

Step 3: Access Elasticsearch

Access the Elasticsearch REST API at http://localhost:9200 to interact with Elasticsearch and perform various operations.

Step 4: Stop and Remove Container

docker stop elasticsearch
docker rm elasticsearch

Elasticsearch will run on port 9200.

Build Spring Boot App

mvn clean install

Run Spring Boot App

The app will run on port 8080.

Usage

The REST endpoints support CRUD operations for the Book entity:

Create a Book

curl -X POST "http://localhost:8080/books" \
-H "Content-Type: application/json" \
-d '{"title":"New Book","author":"John Doe","description":"A new book"}'

Get a Book by ID

curl -X GET "http://localhost:8080/books/{id}"

Update a Book

curl -X PUT "http://localhost:8080/books/{id}" \
-H "Content-Type: application/json" \
-d '{"title":"Updated Book","author":"Jane Smith","description":"An updated book"}'

Delete a Book

curl -X DELETE "http://localhost:8080/books/{id}"