[TOC]

学习 Elasticsearch 6.2 REST API 时，使用过的实验例子。

I. Index

Create Index

curl -X PUT -H 'Content-Type: application/json' 'http://localhost:9200/change' -d '
{
  "mappings": {
    "change": {
      "properties": {
        "date": {
          "format": "yyyyMMdd",
          "type": "date"
        },
        "new_value": {
          "type": "keyword"
        },
        "node": {
          "type": "integer"
        },
        "pripid": {
          "type": "keyword"
        },
        "column": {
          "type": "keyword"
        },
        "id": {
          "type": "keyword"
        },
        "old_value": {
          "type": "keyword"
        },
        "type": {
          "type": "keyword"
        },
        "apprDate": {
          "format": "yyyy-MM-dd",
          "type": "date"
        }
      }
    }
  }
}'

从 6.0 开始 REST API 需要指定 header 信息。

Get Index

curl -X GET 'http://localhost:9200/change'

Delete Index

curl -X DELETE 'http://localhost:9200/change'

Indices Exists

curl -I 'http://localhost:9200/change'

存在返回 200 ，不存在返回 404 。

Types Exists

curl -I 'http://localhost:9200/change/_mapping/change'

存在返回 200 ，不存在返回 404 。

Get Mapping

curl -X GET 'http://localhost:9200/change/_mapping/_doc'

Get Field Mapping

curl -X GET 'http://localhost:9200/change/_mapping/field/node'

Delete Mapping

不提供删除 Mapping 的操作，可以删除 Index ，再重建 Mapping 。

Update Mapping

我们发现有一个字段 apprDate 写错了，需要新加一个 appr_date 字段。

curl -XPUT -H 'Content-Type: application/json' 'http://localhost:9200/change/_mapping/change' -d '
{
  "properties": {
    "appr_date": {
      "format": "yyyy-MM-dd",
      "type": "date"
    }
  }
}'

Add Index Alias

curl -X POST "http://localhost:9200/_aliases" -H 'Content-Type: application/json' -d'
{
    "actions" : [
        { "add" : { "index" : "change", "alias" : "CHANGE" } }
    ]
}'

Remove Index Alias

curl -X POST 'http://localhost:9200/_aliases' -H 'Content-Type: application/json' -d'
{
    "actions" : [
        { "remove" : { "index" : "change", "alias" : "CHANGE" } }
    ]
}'

Rename Index Alias

curl -X POST 'http://localhost:9200/_aliases' -H 'Content-Type: application/json' -d'
{
    "actions" : [
        { "remove" : { "index" : "change", "alias" : "CHANGE" } },
        { "add" : { "index" : "change", "alias" : "CHANGE1" } }
    ]
}'