Searching and facets in ElasticSearch

articles_tags__queries_filters_and_facets_in_elasticsearch.sh

# (Re)create the index
#
curl -X DELETE "http://localhost:9200/articles"
curl -X PUT    "http://localhost:9200/articles"

# Insert the data
#
curl -X POST "http://localhost:9200/articles/article" -d '{ "name" : "One",   "tags" : ["ruby"] }'
curl -X POST "http://localhost:9200/articles/article" -d '{ "name" : "Two",   "tags" : ["ruby", "python"] }'
curl -X POST "http://localhost:9200/articles/article" -d '{ "name" : "Three", "tags" : ["java"] }'
curl -X POST "http://localhost:9200/articles/_refresh"

# Simple queries
#
curl -X GET  "http://localhost:9200/articles/_search?pretty=true&q=tags:ruby"

curl -X GET  "http://localhost:9200/articles/_search?pretty=true&q=tags:python"

curl -X GET  "http://localhost:9200/articles/_search?pretty=true&q=tags:ruby,python"

# Search for tags "ruby" and "python"
#
curl -X POST "http://localhost:9200/articles/_search?pretty=true" -d '
{
  "query" : {
    "terms" : {
      "tags" : [ "ruby" ]
    }
  }
}'

# Search for tags "ruby" and "python", results could include just on of the terms
# [!] Notice how it affects the score
#
curl -X POST "http://localhost:9200/articles/_search?pretty=true" -d '
{
  "query" : {
    "terms" : {
      "tags" : [ "ruby", "python" ],
      "minimum_match" : 1
    }
  }
}'

# Search for tags "ruby" and "python", results must include both terms
#
curl -X POST "http://localhost:9200/articles/_search?pretty=true" -d '
{
  "query" : {
    "terms" : {
      "tags" : [ "ruby", "python" ],
      "minimum_match" : 2
    }
  }
}'

# Faceted search on tags (with "match all" query)
#
curl -X POST "http://localhost:9200/articles/_search?pretty=true" -d '
{
    "query" : {
        "match_all" : {}
    },
    "facets" : {
        "tags" : {
            "terms" : {
                "field" : "tags",
                "size" : 10
            }
        }
    }
}'

# Faceted search on tags (search for "T*" in titles, but exclude "java" in tags)
# [!] Notice that "java" is _excluded_ in facet counts
#
curl -X POST "http://localhost:9200/articles/_search?pretty=true" -d '
{
    "query" : {
      "query_string" : { "query" : "+name:T* -tags:java"}
    },
    "facets" : {
      "tags" : {
        "terms" : {
          "field" : "tags",
          "size" : 10
        }
      }
    }
}'


# Faceted search on tags (search for "T*" in titles), filtered for tags containing "ruby"
# [!] Notice that "java" is _included_ in facet counts
#
curl -X POST "http://localhost:9200/articles/_search?pretty=true" -d '
{
  "query" : {
    "query_string" : { "query" : "T*"}
  },
  "filter" : {
    "terms" : { "tags" : ["ruby"] }
  },
  "facets" : {
    "tags" : {
      "terms" : {
          "field" : "tags",
          "size" : 10
      }
    }
  }
}'