ElasticsearchOptions
ElasticsearchOptions
Configuration options for the ElasticsearchPlugin.
interface ElasticsearchOptions {
host?: string;
port?: number;
connectionAttempts?: number;
connectionAttemptInterval?: number;
clientOptions?: ClientOptions;
indexPrefix?: string;
indexSettings?: object;
indexMappingProperties?: {
[indexName: string]: object;
};
reindexProductsChunkSize?: number;
reindexBulkOperationSizeLimit?: number;
searchConfig?: SearchConfig;
customProductMappings?: {
[fieldName: string]: CustomMapping<[Product, ProductVariant[], LanguageCode, Injector, RequestContext]>;
};
customProductVariantMappings?: {
[fieldName: string]: CustomMapping<[ProductVariant, LanguageCode, Injector, RequestContext]>;
};
bufferUpdates?: boolean;
hydrateProductRelations?: Array<EntityRelationPaths<Product>>;
hydrateProductVariantRelations?: Array<EntityRelationPaths<ProductVariant>>;
extendSearchInputType?: {
[name: string]: PrimitiveTypeVariations<GraphQlPrimitive>;
};
extendSearchSortType?: string[];
}
host
string'http://localhost'The host of the Elasticsearch server. May also be specified in clientOptions.node.
port
number9200The port of the Elasticsearch server. May also be specified in clientOptions.node.
connectionAttempts
number10Maximum amount of attempts made to connect to the ElasticSearch server on startup.
connectionAttemptInterval
number5000Interval in milliseconds between attempts to connect to the ElasticSearch server on startup.
clientOptions
ClientOptionsOptions to pass directly to the
Elasticsearch Node.js client. For example, to
set authentication or other more advanced options.
Note that if the node or nodes option is specified, it will override the values provided in the host and port options.
indexPrefix
string'vendure-'Prefix for the indices created by the plugin.
indexSettings
object{}These options are directly passed to index settings. To apply some settings indices will be recreated.
Example
// Configuring an English stemmer
indexSettings: {
analysis: {
analyzer: {
custom_analyzer: {
tokenizer: 'standard',
filter: [
'lowercase',
'english_stemmer'
]
}
},
filter : {
english_stemmer : {
type : 'stemmer',
name : 'english'
}
}
}
},
A more complete example can be found in the discussion thread How to make elastic plugin to search by substring with stemming.
indexMappingProperties
{ [indexName: string]: object; }{}This option allow to redefine or define new properties in mapping. More about elastic mapping After changing this option indices will be recreated.
Example
// Configuring custom analyzer for the `productName` field.
indexMappingProperties: {
productName: {
type: 'text',
analyzer:'custom_analyzer',
fields: {
keyword: {
type: 'keyword',
ignore_above: 256,
}
}
}
}
To reference a field defined by customProductMappings or customProductVariantMappings, you will
need to prefix the name with 'product-<name>' or 'variant-<name>' respectively, e.g.:
Example
customProductMappings: {
variantCount: {
graphQlType: 'Int!',
valueFn: (product, variants) => variants.length,
},
},
indexMappingProperties: {
'product-variantCount': {
type: 'integer',
}
}
reindexProductsChunkSize
number2500Products limit chunk size for each loop iteration when indexing products.
reindexBulkOperationSizeLimit
number3000Index operations are performed in bulk, with each bulk operation containing a number of individual index operations. This option sets the maximum number of operations in the memory buffer before a bulk operation is executed.
searchConfig
Configuration of the internal Elasticsearch query.
customProductMappings
{ [fieldName: string]: CustomMapping<[Product, ProductVariant[], LanguageCode, Injector, RequestContext]>; }Custom mappings may be defined which will add the defined data to the
Elasticsearch index and expose that data via the SearchResult GraphQL type,
adding a new customMappings, customProductMappings & customProductVariantMappings fields.
The graphQlType property may be one of String, Int, Float, Boolean, ID or list
versions thereof ([String!] etc) and can be appended with a ! to indicate non-nullable fields.
The public (default = true) property is used to reveal or hide the property in the GraphQL API schema.
If this property is set to false it's not accessible in the customMappings field but it's still getting
parsed to the elasticsearch index.
This config option defines custom mappings which are accessible when the "groupByProduct"
input options is set to true. In addition, custom variant mappings can be accessed by using
the customProductVariantMappings field, which is always available.
Example
customProductMappings: {
variantCount: {
graphQlType: 'Int!',
valueFn: (product, variants) => variants.length,
},
reviewRating: {
graphQlType: 'Float',
public: true,
valueFn: product => (product.customFields as any).reviewRating,
},
priority: {
graphQlType: 'Int!',
public: false,
valueFn: product => (product.customFields as any).priority,
},
}
Example
query SearchProducts($input: SearchInput!) {
search(input: $input) {
totalItems
items {
productId
productName
customProductMappings {
variantCount
reviewRating
}
customMappings {
...on CustomProductMappings {
variantCount
reviewRating
}
}
}
}
}
customProductVariantMappings
{ [fieldName: string]: CustomMapping<[ProductVariant, LanguageCode, Injector, RequestContext]>; }This config option defines custom mappings which are accessible when the "groupByProduct"
input options is set to false. In addition, custom product mappings can be accessed by using
the customProductMappings field, which is always available.
Example
query SearchProducts($input: SearchInput!) {
search(input: $input) {
totalItems
items {
productId
productName
customProductVariantMappings {
weight
}
customMappings {
...on CustomProductVariantMappings {
weight
}
}
}
}
}
bufferUpdates
booleanfalseIf set to true, updates to Products, ProductVariants and Collections will not immediately
trigger an update to the search index. Instead, all these changes will be buffered and will
only be run via a call to the runPendingSearchIndexUpdates mutation in the Admin API.
This is very useful for installations with a large number of ProductVariants and/or Collections, as the buffering allows better control over when these expensive jobs are run, and also performs optimizations to minimize the amount of work that needs to be performed by the worker.
hydrateProductRelations
Additional product relations that will be fetched from DB while reindexing. This can be used
in combination with customProductMappings to ensure that the required relations are joined
before the product object is passed to the valueFn.
Example
{
hydrateProductRelations: ['assets.asset'],
customProductMappings: {
assetPreviews: {
graphQlType: '[String!]',
// Here we can be sure that the `product.assets` array is populated
// with an Asset object
valueFn: (product) => product.assets.map(a => a.asset.preview),
}
}
}
hydrateProductVariantRelations
Additional variant relations that will be fetched from DB while reindexing. See
hydrateProductRelations for more explanation and a usage example.
extendSearchInputType
{ [name: string]: PrimitiveTypeVariations<GraphQlPrimitive>; }{}Allows the SearchInput type to be extended with new input fields. This allows arbitrary
data to be passed in, which can then be used e.g. in the mapQuery() function or
custom scriptFields functions.
Example
extendSearchInputType: {
longitude: 'Float',
latitude: 'Float',
radius: 'Float',
}
This allows the search query to include these new fields:
Example
query {
search(input: {
longitude: 101.7117,
latitude: 3.1584,
radius: 50.00
}) {
items {
productName
}
}
}
extendSearchSortType
string[][]Adds a list of sort parameters. This is mostly important to make the
correct sort order values available inside input parameter of the mapSort option.
Example
extendSearchSortType: ["distance"]
will extend the SearchResultSortParameter input type like this:
Example
extend input SearchResultSortParameter {
distance: SortOrder
}
SearchConfig
Configuration options for the internal Elasticsearch query which is generated when performing a search.
interface SearchConfig {
facetValueMaxSize?: number;
collectionMaxSize?: number;
totalItemsMaxSize?: number | boolean;
multiMatchType?: 'best_fields' | 'most_fields' | 'cross_fields' | 'phrase' | 'phrase_prefix' | 'bool_prefix';
boostFields?: BoostFieldsConfig;
priceRangeBucketInterval?: number;
mapQuery?: (
query: any,
input: ElasticSearchInput,
searchConfig: DeepRequired<SearchConfig>,
channelId: ID,
enabledOnly: boolean,
) => any;
scriptFields?: { [fieldName: string]: CustomScriptMapping<[ElasticSearchInput]> };
mapSort?: (sort: ElasticSearchSortInput, input: ElasticSearchInput) => ElasticSearchSortInput;
}
facetValueMaxSize
number50The maximum number of FacetValues to return from the search query. Internally, this value sets the "size" property of an Elasticsearch aggregation.
collectionMaxSize
number50The maximum number of Collections to return from the search query. Internally, this value sets the "size" property of an Elasticsearch aggregation.
totalItemsMaxSize
number | boolean10000The maximum number of totalItems to return from the search query. Internally, this value sets the "track_total_hits" property of an Elasticsearch query. If this parameter is set to "True", accurate count of totalItems will be returned. If this parameter is set to "False", totalItems will be returned as 0. If this parameter is set to integer, accurate count of totalItems will be returned not bigger than integer.
multiMatchType
'best_fields' | 'most_fields' | 'cross_fields' | 'phrase' | 'phrase_prefix' | 'bool_prefix''best_fields'Defines the multi match type used when matching against a search term.
boostFields
Set custom boost values for particular fields when matching against a search term.
priceRangeBucketInterval
numberThe interval used to group search results into buckets according to price range. For example, setting this to
2000 will group into buckets every $20.00:
{
"data": {
"search": {
"totalItems": 32,
"priceRange": {
"buckets": [
{
"to": 2000,
"count": 21
},
{
"to": 4000,
"count": 7
},
{
"to": 6000,
"count": 3
},
{
"to": 12000,
"count": 1
}
]
}
}
}
}
mapQuery
( query: any, input: ElasticSearchInput, searchConfig: DeepRequired<SearchConfig>, channelId: ID, enabledOnly: boolean, ) => anyThis config option allows the the modification of the whole (already built) search query. This allows for e.g. wildcard / fuzzy searches on the index.
Example
mapQuery: (query, input, searchConfig, channelId, enabledOnly){
if(query.bool.must){
delete query.bool.must;
}
query.bool.should = [
{
query_string: {
query: "*" + term + "*",
fields: [
`productName^${searchConfig.boostFields.productName}`,
`productVariantName^${searchConfig.boostFields.productVariantName}`,
]
}
},
{
multi_match: {
query: term,
type: searchConfig.multiMatchType,
fields: [
`description^${searchConfig.boostFields.description}`,
`sku^${searchConfig.boostFields.sku}`,
],
},
},
];
return query;
}
scriptFields
{ [fieldName: string]: CustomScriptMapping<[ElasticSearchInput]> }Sets script_fields inside the elasticsearch body which allows returning a script evaluation for each hit.
The script field definition consists of three properties:
graphQlType: This is the type that will be returned when this script field is queried via the GraphQL API. It may be one ofString,Int,Float,Boolean,IDor list versions thereof ([String!]etc) and can be appended with a!to indicate non-nullable fields.context: determines whether this script field is available when grouping by product. Can beproduct,variantorboth.scriptFn: This is the function to run on each hit. Should return an object with ascriptproperty, as covered in the Elasticsearch script fields docs
Example
extendSearchInputType: {
latitude: 'Float',
longitude: 'Float',
},
indexMappingProperties: {
// The `product-location` field corresponds to the `location` customProductMapping
// defined below. Here we specify that it would be index as a `geo_point` type,
// which will allow us to perform geo-spacial calculations on it in our script field.
'product-location': {
type: 'geo_point', // contains function arcDistance
},
},
customProductMappings: {
location: {
graphQlType: 'String',
valueFn: (product: Product) => {
// Assume that the Product entity has this customField defined
const custom = product.customFields.location;
return `${custom.latitude},${custom.longitude}`;
},
}
},
searchConfig: {
scriptFields: {
distance: {
graphQlType: 'Float!',
// Run this script only when grouping results by product
context: 'product',
scriptFn: (input) => {
// The SearchInput was extended with latitude and longitude
// via the `extendSearchInputType` option above.
const lat = input.latitude;
const lon = input.longitude;
return {
script: `doc['product-location'].arcDistance(${lat}, ${lon})`,
}
}
}
}
}
mapSort
(sort: ElasticSearchSortInput, input: ElasticSearchInput) => ElasticSearchSortInput{}Allows extending the sort input of the elasticsearch body as covered in
Elasticsearch sort docs
The sort input parameter contains the ElasticSearchSortInput generated for the default sort parameters "name" and "price".
If neither of those are applied it will be empty.
Example
mapSort: (sort, input) => {
// Assuming `extendSearchSortType: ["priority"]`
// Assuming priority is never undefined
const { priority } = input.sort;
return [
...sort,
{
// The `product-priority` field corresponds to the `priority` customProductMapping
// Depending on the index type, this field might require a
// more detailed input (example: 'productName.keyword')
["product-priority"]: {
order: priority === SortOrder.ASC ? 'asc' : 'desc'
}
}
];
}
A more generic example would be a sort function based on a product location like this:
Example
extendSearchInputType: {
latitude: 'Float',
longitude: 'Float',
},
extendSearchSortType: ["distance"],
indexMappingProperties: {
// The `product-location` field corresponds to the `location` customProductMapping
// defined below. Here we specify that it would be index as a `geo_point` type,
// which will allow us to perform geo-spacial calculations on it in our script field.
'product-location': {
type: 'geo_point',
},
},
customProductMappings: {
location: {
graphQlType: 'String',
valueFn: (product: Product) => {
// Assume that the Product entity has this customField defined
const custom = product.customFields.location;
return `${custom.latitude},${custom.longitude}`;
},
}
},
searchConfig: {
mapSort: (sort, input) => {
// Assuming distance is never undefined
const { distance } = input.sort;
return [
...sort,
{
["_geo_distance"]: {
"product-location": [
input.longitude,
input.latitude
],
order: distance === SortOrder.ASC ? 'asc' : 'desc',
unit: "km"
}
}
];
}
}
BoostFieldsConfig
Configuration for boosting the scores of given fields when performing a search against a term.
Boosting a field acts as a score multiplier for matches against that field.
interface BoostFieldsConfig {
productName?: number;
productVariantName?: number;
description?: number;
sku?: number;
}
productName
number1Defines the boost factor for the productName field.
productVariantName
number1Defines the boost factor for the productVariantName field.
description
number1Defines the boost factor for the description field.
sku
number1Defines the boost factor for the sku field.