Tutorials
Articles about tutorials.
9 articlesGet Started With Docker
A practical introduction to Docker containers, images, commands, volumes, networking, Dockerfiles, and running multiple services with Docker Compose.
Getting Started With Elasticsearch in Java Spring Boot
Connect Spring Boot 2 to Elasticsearch using Spring Data repositories, ElasticsearchRestTemplate, and the REST high-level client, with CRUD examples.
How to Set up a Self-Hosted Ghost Blogging Platform
A walkthrough of self-hosting Ghost on DigitalOcean, including domain setup, Cloudflare DNS and TLS, server configuration, and the Ghost admin account.
How to Handle Typos in Elasticsearch Using Fuzzy Query
Handle typos in Elasticsearch with fuzzy and match queries, using edit distance, fuzziness, transpositions, prefix length, and query tuning examples.
Avoiding the Null Pointer Exception With Optional in Java
How to use Java Optional to handle missing values, with examples of map, flatMap, filter, fallback methods, and common mistakes to avoid.
Create a Simple Autocomplete With Elasticsearch
Build a simple Elasticsearch autocomplete using match_phrase_prefix, from index mappings and sample documents to query behavior and limitations.
Functional Programming in Java, Explained
Java functional programming with lambda expressions and functional interfaces, including built-in interfaces and a small custom Stream implementation.
Elasticsearch: Text vs. Keyword
Compare Elasticsearch text and keyword fields: how analysis changes indexing, how term and match queries behave, and when to use each field type.
Basics of Elasticsearch for Developer
An introduction to Elasticsearch for developers, covering inverted indexes, field types, analyzers, document writes, queries, and aggregations.