elasticsearch REST api
========================================
命令模式：<REST Verb> /<Index>/<Type>/<ID>




插入索引
------------
PUT /customer?pretty

查詢索引列表
-------------
GET /_cat/indices?v

給索引插入文檔
-----------------------
PUT /customer/external/1?pretty
{
"name": "John Doe"
}

查詢文檔
---------------
GET /customer/external/1?pretty

刪除索引
------------
DELETE /customer?pretty


修改文檔
-------------
如果index/type/id 相同，就會替換文檔
PUT /customer/external/1?pretty
{
"name": "Jane Doe"
}

不指定ID插入文檔
----------------------
POST /customer/external?pretty
{
"name": "Jane Doe"
}

更新文檔
---------------
POST /customer/external/1/_update?pretty
{
"doc": { "name": "Jane Doe", "age": 20 }
}

POST /customer/external/1/_update?pretty
{
"script" : "ctx._source.age += 5"
}

批量操作
------------
POST /customer/external/_bulk?pretty
{"index":{"_id":"1"}}
{"name": "John Doe" }
{"index":{"_id":"2"}}
{"name": "Jane Doe" }

POST /customer/external/_bulk?pretty
{"update":{"_id":"1"}}
{"doc": { "name": "John Doe becomes Jane Doe" } }
{"delete":{"_id":"2"}}

根據索引查詢
-----------------
GET /bank/_search
{
"query": { "match_all": {} },
"size": 1
}

GET /bank/_search
{
"query": { "match_all": {} },
"from": 10,
"size": 10
}

GET /bank/_search
{
"query": { "match_all": {} },
"sort": { "balance": { "order": "desc" } }
}

elasticsearch REST api