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easy-es

v3.0.0

Published

基于Elasticsearch进行封装,主要用于构建查询条件(body),以及发送请求

Readme

基于Elasticsearch进行二次封装,大幅简化查询条件的构建,以及发送相应请求

Install

$ npm install easy-es --save

Changes

  • 依赖库切换为elastic/elasticsearch
  • 支持elasticsearch7.x
  • 改变实例化的方式
  • 对应elasticsearch5.x和6.x取消实例化时指定index,改用setIndex替代

Usage

Supported Elasticsearch Versions

  • 5.x
  • 6.x
  • 7.x

Examples

// 更多的样例请参考examples路径下的相应文件
const easyES = require('easy-es');
const config = {node: 'http://elastic:[email protected]:9200', version: '7.x'};
const client = easyES(config);

// 构建查询的body
const should = [], filter = [];
client.utils.addTerm(filter, 'gender', 'male');
client.utils.addRange(filter, 'reward', 300000000, 1500000000);
client.utils.addMatch(should, 'name', 'Monkey');

const body = client.utils.createBody(should, filter);

const source = ['name'];
// 获取前10个检索结果
const result = await client.search('index', body, 10, 0, source);

声明时的config的参数除了官方的配置之外,多了version的参数,支持的值为'5.x', '6.x', '7.x'。

Something you need to know

查询body的基本结构如下,easy-es在此基础上进行查询条件的构建,must、must_not、should的值也可以是object(二级的bool条件)

{
	"query": {
		"bool": {
			"must": [],
			"must_not": [],
			"should": [],
			"filter": []
		}
	},
	"sort": [],
	"aggs": {}
}