elasthink

An alternative to elasticsearch engine written in Go for small set of documents that uses inverted index to build the index and utilizes redis to store the indexes.

Table of Contents

• Use Cases
• Elasthink SDK
• Installation
• Documentation
• Dependencies
• Reference
• Additional Note

Use Cases

1. Create Index for a document (needs document_type, document_id, and document_name)
2. Update Index of a document (needs document_type, document_id, and document_name)
3. Search document_id by document name using search term (needs document_type and search_term)
4. Keyword Suggestion by prefix (needs document_type and keyword_prefix)

Elasthink SDK

Coming Soon!
With the SDK, you can run all the core functionality of elasthink from your go service by providing a redis connection and without setting up a dedicated elasthink server.
Currently, the SDK is on preparation for the release. So stay tuned to get the latest update.

Installation

1. To install elasthink, you need to run $ go get github.com/SurgicalSteel/elasthink
2. Then you need to specify your redis addresses for each environment in files/config/redis folder
3. To start with your own document, you need to modify the document type const in entity/document.go and its validation function in module/document.go
4. To build elasthink, run $ go build
5. To view all available flags, run $ ./elasthink -h
6. To run elasthink, run $ ./elasthink -env={your-environment} -swr={stopword Removal option (true/false)} and your elasthink web service should run on localhost:9000

Documentation

API documentation (insomnia format) is available in the elasthink_insomnia_api_documentation.json. You can open it using Insomnia REST Client
For code documentation, we use standard godoc as our code documentation tool. To view the code documentation, follow these steps :

1. Open your terminal, head to this cloned repo (SurgicalSteel/elasthink)
2. run godoc -http=:6060 (this will trigger godoc at port 6060)
3. Open your browser, and hit http://127.0.0.1:6060/pkg/github.com/SurgicalSteel/elasthink/

Dependencies

1. gorilla/mux
2. gomodule/redigo
3. gcfg.v1
4. stretchr/testify
5. rafaeljusto/redigomock

Reference

E-Book Redis in Action Part 2 Chapter 7

Additional Note

Currently, elasthink supports stopwords removal option when doing tokenization for document name and search term. But, for now we only support stopwords removal for bahasa Indonesia (Indonesian).