Aggregations create the ability to get summarized views and statistics about the data. It allows you build data drill downs along the structured part of your items as well as visualizations over time or other data dimensions.
Specification
Request format
...
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"language": {
"fields": "language"
} |
or even shorter as the label can also serve as the field:
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"language": {} |
over multiples fields:
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"multi": {
"fields": ["provider", "language"]
} |
setting the number of results you would like to get back
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"language": {
"size": 3
} |
Adding another dimension to the aggregation: e.g. show the number of results for each language and provider
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"language": {
"aggregate": {"fields": "provider"}
} |
Aggregations using a different method:
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"$item_created_at": {
"method": "histogram"
} |
Aggregating the languages of items over time:
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"$item_created_at": {
"method": "histogram",
"aggregation": {
"fields": ["language"],
}
} |