Elasticsearch Document API - useful commdnds

• get information about the document:\

# curl -XGET -u login:password '127.0.0.1:9200/twitter/tweet/1?pretty=true'

You should see the output:\

*`{`*\
  *`"_index" : "twitter",`*\
  *`"_type" : "tweet",`*\
  *`"_id" : "1",`*\
  *`"_version" : 1,`*\
  *`"found" : true,`*\
  *`"_source" : {`*\
    *`"user" : "lab1",`*\
    *`"post_date" : "2017-08-25T10:00:00",`*\
    *`"message" : "testuje Elasticsearch"`*\
  *`}`*\

}

• get the source of the document:\

# curl -XGET -u login:password '127.0.0.1:9200/twitter/tweet/1/_source?pretty=true'

You should see the output:\

*`{`*\
  *`"user" : "lab1",`*\
  *`"post_date" : "2017-08-25T10:00:00",`*\
  *`"message" : "testuje Elasticsearch"`*\

}\

• get information about all documents in the index:\

# curl -XGET -u login:password '127.0.0.1:9200/twitter*/_search?q=*&pretty=true'

You should see the output:

`*{`*\
  `*"took" : 7,`*\
  `*"timed_out" : false,`*\
  `*"_shards" : {`*\
    `*"total" : 10,`*\
    `*"successful" : 10,`*\
    `*"failed" : 0`*\
  `*},`*\
  `*"hits" : {`*\
    `*"total" : 3,`*\
    `*"max_score" : 1.0,`*\
    `*"hits" : [ {`*\
      `*"_index" : "twitter",`*\
      `*"_type" : "tweet",`*\
      `*"_id" : "AV49sTlM8NzerkV9qJfh",`*\
      `*"_score" : 1.0,`*\
      `*"_source" : {`*\
        `*"user" : "lab1",`*\
        `*"post_date" : "2017-08-25T10:10:00",`*\
        `*"message" : "auto generated ID"`*\
      `*}`*\
    `*}, {`*\
      `*"_index" : "twitter",`*\
      `*"_type" : "tweet",`*\
      `*"_id" : "1",`*\
      `*"_score" : 1.0,`*\
      `*"_source" : {`*\
        `*"user" : "lab1",`*\
        `*"post_date" : "2017-08-25T10:00:00",`*\
        `*"message" : "Elasticsearch test"`*\
      `*}`*\
    `*}, {`*\
      `*"_index" : "twitter2",`*\
      `*"_type" : "tweet",`*\
      `*"_id" : "1",`*\
      `*"_score" : 1.0,`*\
      `*"_source" : {`*\
        `*"user" : "elk01",`*\
        `*"post_date" : "2017-09-05T10:00:00",`*\
        `*"message" : "manual index created test"`*\
      `*}`*\
    `*} ]`*\
  `*}`*\
`*}`*

• the sum of all documents in a specified index:\

# curl -XGET -u login:password '127.0.0.1:9200/_cat/count/twitter?v'

You should see the output:\

*`epoch             timestamp count`*\
*`1504281400    17:56:40     2`*

• the sum of all document in Elasticsearch database:\

# curl -XGET -u login:password '127.0.0.1:9200/_cat/count?v'

You should see the output:\

*`epoch             timestamp count`*\
*`1504281518    17:58:38    493658`*