elastibuild
v1.5.0
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Elastibuild, A fluent builder for creating ElasticSearch compatible query JSON
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Elastibuild
Elastibuild, a fluent builder for creating ElasticSearch compatible query JSON.
Compatibility
- Targets Node 6.x and above.
- All constructed queries are compatible with Elasticsearch 5.x and above.
Installing
To utilize elastibuild for node.js install the the npm
module:
$ npm install elastibuild
After installing the npm
package you can now building queries like so:
const ElastiBuild = require('elastibuild');
Building Queries
You're probably wondering how using Elastbuild makes creating Elasticsearch queries easier. Well, it simply provides a fluent way of constructing Elasticsearch queries.
Let's start with a basic working example:
'use strict';
const ElastiBuild = require('../');
const builder = ElastiBuild.buildQuery();
builder.withMatch('my_field', 'field value');
builder.withSize(100);
builder.withFrom(0);
const query = builder.build();
console.log(query);
This example would produce the following console output:
{
"query": {
"bool": {
"must": [
{
"match": {
"my_field": "field value"
}
}
]
}
},
"size": 100,
"from": 0
}
API Documentation
ElastiBuild.buildQuery();
Returns a builder object to allow you to fluently build a query.
const builder = ElastiBuild.buildQuery();
ElastiBuild.build();
Build the actual JSON query using the provided parameters. This method returns Elasticsearch compatible JSON.
const builder = ElastiBuild.buildQuery();
// Some building...
// Dump out the Elasticsearch query to console.
console.log(builder.build());
ElastiBuild.withFrom(fromValue);
The from parameter defines the offset from the first result you want to fetch.
Pagination of results can be done by using the withFrom and withSize functionality:
fromValue
(Number
)
builder.withFrom(1);
ElastiBuild.withSize(sizeValue);
The size parameter allows you to configure the maximum amount of hits to be returned:
Pagination of results can be done by using the withFrom and withSize functionality:
sizeValue
(Number
)
builder.withSize(10);
ElastiBuild.withMinScore(minScore);
Exclude documents which have a _score less than the minimum specified in min_score:
minScore
(Number
)
builder.withMinScore(0.5);
ElastiBuild.withMatch(field, values);
Return documents where the field value matches the provided values:
field
(String
)values
(Array
||String
)
A single value example:
builder.withMatch('my_field', 'my_value');
An array of values example:
builder.withMatch('my_field_2', ['my_value_1', 'my_value_2']);
An example using options to overide the query type:
builder.withMatch('my_field', { gte: '2021-01-11' }, { subQueryType: 'range' });
ElastiBuild.withMatchAll(value);
Constructs a simple match all query. Matches all documents that match the value provided:
value
(Object
)
Match all documents example:
builder.withMatchAll({});
Boost parameter example:
builder.withMatchAll({ "boost" : 1.2 });
ElastiBuild.withMustMatch(field, values);
Return documents where the field values must match the provided values:
field
(String
)values
(Array
||String
)
A single value example:
builder.withMustMatch('my_field', 'my_value');
An array of values example:
builder.withMustMatch('my_field_2', ['my_value_1', 'my_value_2']);
An example using options to overide the query type:
builder.withMustMatch('my_field', { gte: '2021-01-11' }, { subQueryType: 'range' });
ElastiBuild.withShouldMatch(field, values);
Return documents where the field value should match the provided values:
field
(String
)values
(Array
||String
)
A single value example:
builder.withShouldMatch('my_field', 'my_value');
An array of values example:
builder.withShouldMatch('my_field_2', ['my_value_1', 'my_value_2']);
An example using options to overide the query type:
builder.withShouldMatch('my_field', { gte: '2021-01-11' }, { subQueryType: 'range' });
ElastiBuild.withNotMatch(field, values);
Return documents where the field value does not match the provided values:
field
(String
)values
(Array
||String
)
A single value example:
builder.withNotMatch('my_field', 'my_value');
An array of values example:
builder.withNotMatch('my_field_2', ['my_value_1', 'my_value_2']);
An example using options to overide the query type:
builder.withNotMatch('my_field', { gte: '2021-01-11' }, { subQueryType: 'range' });
ElastiBuild.withGeoDistance(fields, lat, long, distance);
Return documents where the geo distance matches the provided values, based on a geo_point circle query:
fields
(Array
)lat
(Number
)long
(Number
)distance
(String
)
ElastiBuild.withGeoCircle(fields, lat, long, radius, relation);
Return documents where the shape or location fields matche a geo_shape circle query, where the default relation is intersects
.
This default relation matches all documents whose geo_shape indexed location or shape intersects with the submitted circle.
fields
(Array
)lat
(Number
)long
(Number
)radius
(String
)relation
(String
)
The radius
value defaults to metres so a unit can be omitted, but other units are supported by ES such as "100km".
The relation
value defaults to "intersects", but can also be:
intersects
- Matches documents whose location or shape intersects with the circlewithin
- Matches documents whose location or shape is within the circlecontains
- Matches documents whose location or shape contains the circledisjoint
- Matches document whose location or shape has nothing in common with the circle e.g. outside or does not contain
A geo circle example:
builder.withGeoCircle(['my_field1', 'my_field2'], 12.45, 45.65, '1000');
A geo circle example with alternative radius units:
builder.withGeoCircle(['my_field1', 'my_field2'], 12.45, 45.65, '1000km');
A geo circle example with a within relation:
builder.withGeoCircle(['my_field1', 'my_field2'], 12.45, 45.65, '1000', 'within');
ElastiBuild.withGeoLocation(fields, lat, long);
Return documents where the indexed geo_shape fields contain the provided location.
fields
(Array
)lat
(Number
)long
(Number
)
A simple geo location example:
builder.withGeoLocation(['my_field1', 'my_field2'], 12.45, 45.65);
ElastiBuild.withTerms(field, values);
Return documents where the field value matches the provided values:
field
(String
)values
(Array
||String
)
A single value example:
builder.withTerms('my_field', 'my_value');
ElastiBuild.withQueryString(fields, queryString, options);
Returns documents matching the provided query_string.
fields
(Array
)queryString
(String
)options
(Object
)
An example usage is as follows:
builder.withQueryString(['my_field_1', 'my_field_2'], 'foo AND bar', { boost: 100, use_dis_max: true });
ElastiBuild.withMustQueryString(fields, queryString, options);
Returns documents which must match the provided query_string.
fields
(Array
)queryString
(String
)options
(Object
)
An example usage is as follows:
builder.withMustQueryString(['my_field_1', 'my_field_2'], 'foo AND bar', { boost: 100, use_dis_max: true });
ElastiBuild.withShouldQueryString(fields, queryString, options);
Returns documents which should match the provided query_string.
fields
(Array
)queryString
(String
)options
(Object
)
An example usage is as follows:
builder.withShouldQueryString(['my_field_1', 'my_field_2'], 'foo AND bar', { boost: 100, use_dis_max: true });
ElastiBuild.withMustFilter(field, values);
Applies a must filter to the query.
field
(String
)values
(Array
||String
)options
(Object
)
A single value example:
builder.withMustFilter('my_field', 'my_value');
An array of values example:
builder.withMustFilter('my_field', ['my_value_1', 'my_value_2']);
An example using options to overide the query type:
builder.withMustFilter('my_field', { gte: '2021-01-11' }, { subQueryType: 'range' });
ElastiBuild.withMustFilterObject(partialQueryObject);
Applies a complex must filter to the query.
partialQueryObject
(Object
)
A complex nested sub-query example:
builder.withMustFilterObject({
bool: {
should: [
{
terms: {
fooProp: [ "barValue" ]
}
},
{
bool: {
must_not: {
match: {
bazProp: [ "barValue" ]
}
}
}
}
]
}
});
ElastiBuild.withShouldFilter(field, values);
Applies a should filter to the query.
field
(String
)values
(Array
||String
)options
(Object
)
A single value example:
builder.withShouldFilter('my_field', 'my_value');
An array of values example:
builder.withShouldFilter('my_field', ['my_value_1', 'my_value_2']);
An example using options to overide the query type:
builder.withShouldFilter('my_field', { gte: '2021-01-11' }, { subQueryType: 'range' });
ElastiBuild.withMustNotFilter(field, values);
Applies a must_not filter to the query.
field
(String
)values
(Array
||String
)options
(Object
)
A single value example:
builder.withMustNotFilter('my_field', 'my_value');
An array of values example:
builder.withMustNotFilter('my_field', ['my_value_1', 'my_value_2']);
An example using options to overide the query type:
builder.withMustNotFilter('my_field', { gte: '2021-01-11' }, { subQueryType: 'range' });
ElastiBuild.withRange(field, values);
Returns documents within the provided range.
field
(String
)range
(Object
)
A single value example:
builder.withRange("timestamp", { gte: "1970-01-01", lte: "1970-01-01" });
ElastiBuild.withSearchAfter(values);
Sets the search after values for scrolling pages.
values
(Array
)
builder.withSearchAfter(["first_value", 12345]);
ElastiBuild.withSort(field, order);
Sorts the returned documents using the provided field and direction.
field
(String
)order
(Object
)
builder.withSort("my_field", "desc");
ElastiBuild.withSortUri(uris);
Sorts the returned documents using the provided sort uri.
uris
(Array
)
Example with a field and order:
builder.withSortUri("my_field:desc");
Example with a field, order and mode:
builder.withSortUri("my_field:desc:min");
ElastiBuild.withSortObject(sortObject);
Sorts the returned documents using the provided sort object (for complex queries).
sortObject
(Array/Object
)
Example with an array:
builder.withSortObject([{ post_date : {order : "asc"}}]);
Example with an object:
let inputObject = {
"_script": {
"type": "number",
"order": "desc",
"script": {
"lang": "eng",
"inline": "if (doc['version'].value > 0) { doc['version'].value } else { doc['firstcreated'].value }"
}
}
};
builder.withSortObject(inputObject);
This example would produce the following console output:
{
"query": {
"bool": {
"must": {
"match_all": {}
}
}
},
"sort": {
"my_type": {
"_source": {
"includes": [
"path1.*",
"path2.*"
],
"excludes": [
"path3.*"
]
}
}
}
}
ElastiBuild.withFieldExist(field);
Returns documents containing the provided field.
field
(String
)
builder.withFieldExist("my_field");
ElastiBuild.withField(field, value);
Allowing further customisation, appends additional field to the query. Returns documents containing the provided field.
field
(String
)options
(Any
)
builder.withField("my_field", {value: 'some_value'});
ElastiBuild.withMoreLikeThis(fields, id, options);
Returns documents that are "like" the provided document id.
fields
(Array
)id
(String
)options
(Object
)
builder.withMoreLikeThis(["my_field_1", "my-field-2"], "my-id", { min_term_freq: 4, minimum_should_match: "90%" });