ElasticQueryBuilder

ElasticQueryBuilder 是一个查询构建器，旨在轻松构建与 ElasticSearch 相关的 DSL。

安装

# Cargo.toml
[dependencies]
elastic-query-builder ="0.1"

Future

• 映射
• DML 查询
• 聚合

映射

fn main() {
    let mut mapping = MappingBuilder::new();
    mapping
        .add_property("title", KeywordFieldType::new())
        .add_property("content", TextFieldType::new());
    assert_eq!(
        mapping.build().to_string(),
        r#"{"mappings":{"properties":{"content":{"type":"text"},"title":{"type":"keyword"}}}}"#
    );
}

DML 查询

构建 JSON 查询

fn main() {
    let mut query = QueryBuilder::new();
    query.set_query(MatchQuery::new("field", "value"));
    query.set_from(10);
    query.set_size(100);
    let value_json = query.build();
}

提供查询

• bool_query
• exists_query
• geo_distance_query
• match_all_query
• match_query
• multi_match_query
• nested
• range_query
• script_query
• script_score_query
• term_query
• terms_query
• wildcard_query

BoolQuery 示例

fn main() {
    let mut query = QueryBuilder::new();
    let mut bool = BoolQuery::new();
    bool.add_must(MatchQuery::new("field1", "value"));
    bool.add_must_not(MatchQuery::new("field2", "value"));
    bool.add_should(MatchQuery::new("field3", "value"));
    query.set_query(bool);
}

Nested 示例

fn main() {
    let mut query = QueryBuilder::new();
    let nested = NestedQuery::new("locations", MatchQuery::new("locations.country", "JP"));
    query.set_query(nested);
}