Elasticsearch in Action (second edition) Book

The book's accompanying wiki pages explains the code examples

Here's the TOC

1. Overview
2. Getting Started
3. Architecture
4. Mapping
5. Working with Documents
6. Indexing Operations
7. Text Analysis
8. Search Basics
9. Term Level Queries
10. Full Text Queries
11. Compound Queries
12. Advanced Queries
13. Aggregations
14. Administration
15. Performance and Troubleshooting
16. Appendix A: Installing and configuring Elasticsearch and Kibana
17. Appendix B: Ingest Pipelines

By default, 8.x version of Elasticsearch comes with security enabled. For simplicity and not getting the security in our way, we can disable the feature

⚠️ PLEASE DO NOT disable security in PRODUCTION

Edit config/elasticsearch.yml to add the following property at the end of the file: xpack.security.enabled: false