ElasticItems

Elasticsearch 7.x client for JS with faceted search, custom features and simple interface

Features

• faceted search
• full text
• pagination
• sorting

Getting Started

npm install elasticitems

constelasticitems=require('elasticitems')(es_config,search_config);elasticitems.search().then(result=>{console.log(result);})

API

var elasticitems = ElasticItems(es_config, [search_config])

es_config

The first es_config is elasticsearch configuration object and contains values like host, index or type.

search_config

Responsible for defining global configuration.

• aggregations filters configuration i.e. for tags, actors, colors, etc. Responsible for generating facets.

• sortings you can configure different sortings like tags_asc, tags_desc with options and later use it with one key.

elasticitems.search(options, [search_config])

options

• per_page amount of items per page.

• page page number - used for pagination.

• query used for full text search.

• operator search operator and and or (default). It works with query parameter

• sort used for sorting. one of sortings key

• filters filtering items based on specific aggregations i.e. {tags: ['drama' , 'historical']}

• query_string i.e. "brand:Audi OR brand:Mercedes"

• facets_names make faceted search only for specific fields i.e. ['tags', 'genres']

• fields search only in specifc fields i.e. ['name', 'description']. Missing parameter means search in all fields

• ids search by ids i.e. ['1', '2', '3']

• exclude_ids exclude ids from search i.e. ['1', '2', '3']

elasticitems.similar(id, options)

Show similar items based on collaborative filtering

options

• fields i.e ['tags'].

elasticitems.aggregation(options)

It returns full list of filters for specific aggregation

options

• name aggregation name

• per_page filters per page

• size how much load into memory (for pagination)

• page page number

• sort responsible for sorting mechanism. It can be _count or _term

• order responsible for an order. It can be asc or desc

• filters filter this aggregation through another aggregations (facets)

• aggregation_query used for quering filters. It's not full text search

• query search through items

• query_string search through items by query string i.e. (category:Garden and color:red)

elasticitems.get(id)

Returns found record otherwise throw an error

elasticitems.getBy(key, value)

Returns record based on key and value

elasticitems.add(data, [options])

Add a new object into index. Provide your own id if you don't want it auto-generated

elasticitems.partialUpdate(id, data, [options])

Updates object in index

elasticitems.delete(id)

Delete object from index

Notes

• Full text search does not work on keyword type because this type is not tokenized. keyword type is great for faceted fields

Tests

npm test