Elasticsearch API Search document queries

Elasticsearch has very detailed search API but its bit different for someone with RDBMS and SQL query background. Here are some of the sample queries.

search all

GET /ecomm/_search
{
    "query": {
        "match_all": {}
    }
}

Search for specific key

GET /twitter/_search
{
    "query": {
        "match": { "user":"ssss"}
    }
}

Search using URL

GET /ecomm/_search?q=Apple

Detailed search for nested value

GET /ecomm/_search
{
    "query": {
        "match" : {
            "productBaseInfoV1.productId": "MOBFKCTSYAPWYFJ5"
        }
    }
}

Search with more parameters

POST /ecomm/_search
{
    "query": {
        "match" : {
            "productBaseInfoV1.productId": "MOBFKCTSYAPWYFJ5"
        }
    },
    "size": 1,
    "from": 0,
    "_source": [ "productBaseInfoV1.productId", "productBaseInfoV1.title", "imageUrls","productDescription" ]
}