whatisgithub

What is elastic?

olivere/elastic — explained in plain English

Analysis updated 2026-06-24

7,457GoAudience · developerComplexity · 3/5Setup · moderate

In one sentence

A now-deprecated Go library for connecting to and querying Elasticsearch, covering index management, document storage, and search, superseded by the official Elasticsearch Go client.

Mindmap

mindmap
  root((olivere/elastic))
    What it does
      Go Elasticsearch client
      Index management
      Document storage
      Search queries
    Status
      Deprecated
      Official client preferred
      History intact
    Versioning
      v2 for ES 1.x
      v3 for ES 2.x
      v7 for ES 7.x
    Audience
      Go developers
      Search engineers
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Code map

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filefunction / class

What do people build with it?

USE CASE 1

Reference historical code patterns for connecting Go applications to Elasticsearch before migrating to the official client.

USE CASE 2

Study how a versioned open-source connector library was structured to track breaking changes in an external API.

USE CASE 3

Use as a starting point for understanding Elasticsearch query DSL concepts while writing Go code.

What is it built with?

GoElasticsearch

How does it compare?

olivere/elasticgo-git/go-gitgooglecloudplatform/kubectl-ai
Stars7,4577,4567,455
LanguageGoGoGo
Setup difficultymoderateeasymoderate
Complexity3/52/53/5
Audiencedeveloperdeveloperops devops

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 30min

Requires a running Elasticsearch instance and the correct library version matched to your Elasticsearch major version. Now deprecated, official client preferred.

So what is it?

This repository is a now-deprecated Go library for working with Elasticsearch, which is a popular search engine used to store and query large amounts of data quickly. The library let Go programs connect to an Elasticsearch server, create or delete indexes (organized collections of data), add documents, run searches, and handle results, all using Go-native code rather than writing raw web requests by hand. The project was maintained by a developer named Oliver Eilhard and was used in production environments starting in 2012. Because Elasticsearch itself changed frequently, the library had to track those changes, and as a result it was released in versioned branches tied to specific Elasticsearch versions. Version 3 of this library, for example, was built to work with Elasticsearch 2.x, while version 2 of the library matched Elasticsearch 1.x. The README is now marked as deprecated. The maintainer directs users to the official Elasticsearch Go client, which is maintained by the Elasticsearch company directly. This repository remains publicly available with its history intact, and it still accumulates stars as a reference, but active development has stopped. For a non-technical reader, this project represents a common pattern in open-source software: a community developer builds a widely-used connector library for a popular service, and then the original service provider eventually releases their own official version, making the community library obsolete. The code is written in Go, a programming language developed by Google that is often used for backend servers and developer tools.

Copy-paste prompts

Prompt 1
This is a deprecated Go Elasticsearch library. Show me how to migrate a basic index-and-search operation from olivere/elastic v7 to the official Elasticsearch Go client.
Prompt 2
Using olivere/elastic, show me how to create an index, add a document, and run a full-text search query in Go.
Prompt 3
How did olivere/elastic handle versioning to stay compatible with different Elasticsearch major versions, and how does that compare to the official client's approach?
Prompt 4
What are the key API differences between olivere/elastic v7 and the official go-elasticsearch v8 client that I need to know before migrating?

Frequently asked questions

What is elastic?

A now-deprecated Go library for connecting to and querying Elasticsearch, covering index management, document storage, and search, superseded by the official Elasticsearch Go client.

What language is elastic written in?

Mainly Go. The stack also includes Go, Elasticsearch.

How hard is elastic to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is elastic for?

Mainly developer.

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