elastic (version 0.3.0)

search_body: Full text search of Elasticsearch - body requests.

Description

Full text search of Elasticsearch - body requests.

Usage

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

Arguments

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 httr::POST.

query

Query, either a list or json.

...

Further args passed on to elastic search HTTP API as parameters. Not used right now.

Examples

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

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


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

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

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

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

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