search_body: Full text search of Elasticsearch - body requests.

In elastic: General Purpose Interface to 'Elasticsearch'

Description

Full text search of Elasticsearch - body requests.

Usage

search_body(
  conn,
  index = NULL,
  type = NULL,
  raw = FALSE,
  callopts = list(),
  query = list(),
  ...
)

Arguments

conn	an Elasticsearch connection object, see connect()
index	Index name
type	Document type
raw	If TRUE (default), data is parsed to list. If FALSE, then raw JSON.
callopts	Curl args passed on to crul::verb-POST
query	Query, either a list or json.
...	Further args passed on to elastic search HTTP API as parameters. Not used right now.

Examples

## Not run: 
# connection setup
# x <- connect()
# x$ping()

# pass in as an R list
aggs <- list(aggs = list(stats = list(terms = list(field = "text_entry"))))
# search_body(x, index="shakespeare", query=aggs)

# or pass in as json query with newlines, easy to read
aggs <- '{
    "aggs": {
        "stats" : {
            "terms" : {
                "field" : "text_entry"
            }
        }
    }
}'
# search_body(x, index="shakespeare", query=aggs)


# or pass in collapsed json string
aggs <- '{"aggs":{"stats":{"terms":{"field":"text_entry"}}}}'
# search_body(x, index="shakespeare", query=aggs)

# match query
match <- '{"query": {"match" : {"text_entry" : "Two Gentlemen"}}}'
# search_body(x, index="shakespeare", query=match)

# multi-match (multiple fields that is) query
mmatch <- '{"query": {"multi_match" : {"query" : "henry", "fields": 
["text_entry","play_name"]}}}'
# search_body(x, index="shakespeare", query=mmatch)

# bool query
mmatch <- '{
 "query": {
   "bool" : {
     "must_not" : {
       "range" : {
         "speech_number" : {
           "from" : 1, "to": 5
}}}}}}'
# search_body(x, index="shakespeare", query=mmatch)

# Boosting query
boost <- '{
 "query" : {
  "boosting" : {
      "positive" : {
          "term" : {
              "play_name" : "henry"
          }
      },
      "negative" : {
          "term" : {
              "text_entry" : "thou"
          }
      },
      "negative_boost" : 0.2
    }
 }
}'
# search_body(x, index="shakespeare", query=mmatch)

## End(Not run)

elastic documentation built on March 17, 2021, 1:07 a.m.