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Simple Elasticsearch query builder
$ npm install relastic
Relastic uses method chaining to construct Elasticsearch queries.
var Relastic = require('relastic')
var r = new Relastic()
r.query().match({title: 'thai chili'})
r.output()
// {
// query: {
// match: {
// title: 'thai chilies'
// }
// }
// }
This approach can be much simpler than constructing large ES queries when compared to explicitly defining and modifying complex objects.
r.filter()
.bool()
.must()
.term({type: 'chili pepper'})
.terms({spiciness: ['high', 'very high']})
.should()
.term({color: 'green'})
.term({size: 'small'})
r.output()
// {
// query: {},
// filter: {
// bool: {
// must: [
// {
// term: {
// type: 'chili pepper'
// }
// },
// {
// terms: {
// spiciness: ['high', 'very high']}
// }
// }
// ],
// should: [
// {
// term: {
// color: 'green'
// }
// },
// {
// term: {
// size: 'small'
// }
// }
// ]
// }
// }
// }
Relastic also allows construction of query objects progressively.
r.filteredQuery()
.query()
.match({ingredients: 'cayenne'})
r.filteredQuery()
.filter()
.term({type: 'soup'})
r.output()
// {
// query: {
// filtered: {
// query: {
// match: {
// ingredients: 'cayenne'
// }
// },
// filter: {
// term: {
// type: 'soup'
// }
// }
// }
// }
// }
Each invocation of a Relastic query constructor method returns a chainable instance of Relastic. The chain can be started anew at whatever point the final method invocation referred to.
var bool = r.filter().bool()
bool.must().term({color: 'green'})
bool.must_not().terms({spiciness: ['none', 'low', 'medium']})
r.output()
// {
// query: {},
// filter: {
// bool : {
// must: {
// term: {
// color: 'green'
// }
// },
// must_not: {
// terms: {
// spiciness: ['none', 'low', 'medium']
// }
// }
// }
// }
// }
FAQs
Elasticsearch query builder
The npm package relastic receives a total of 0 weekly downloads. As such, relastic popularity was classified as not popular.
We found that relastic demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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