DevOps: What is Elasticsearch?

1// Indexing
2PUT /users/_doc/1
3{
4  "name": "Alice",
5  "email": "a@b.com",
6  "age": 25
7}
8
9// Search
10GET /users/_search
11{
12  "query": {
13    "bool": {
14      "must": [
15        { "match": { "name": "Alice" } },
16        { "range": { "age": { "gte": 18 } } }
17      ]
18    }
19  }
20}
21
22// Aggregations
23GET /users/_search
24{
25  "aggs": {
26    "age_stats": {
27      "stats": { "field": "age" }
28    }
29  }
30}
31
32// Mapping
33PUT /users/_mapping
34{
35  "properties": {
36    "name": { "type": "text" },
37    "age": { "type": "integer" }
38  }
39}