एलास्टिकसर्च चीटशीट: आवश्यक कमांड्स और टिप्स

# बुनियादी स्वास्थ्य जांच
curl -X GET "localhost:9200/_cluster/health?pretty"

# शार्ड जानकारी के साथ विस्तृत क्लस्टर स्वास्थ्य
curl -X GET "localhost:9200/_cluster/health?level=shards&pretty"

# नोड जानकारी की जांच करें
curl -X GET "localhost:9200/_cat/nodes?v"

# क्लस्टर सेटिंग्स की जांच करें
curl -X GET "localhost:9200/_cluster/settings?pretty"

# सभी नोड्स की सूची
curl -X GET "localhost:9200/_cat/nodes?v&h=name,node.role,heap.percent,ram.percent,cpu,load_1m"

# नोड स्टैट्स
curl -X GET "localhost:9200/_nodes/stats?pretty"

# गर्म धागे (ट्रबलशूटिंग)
curl -X GET "localhost:9200/_nodes/hot_threads"

# इंडेक्स बनाएँ
curl -X PUT "localhost:9200/my_index?pretty"

# सेटिंग्स के साथ इंडेक्स बनाएँ
curl -X PUT "localhost:9200/my_index" -H 'Content-Type: application/json' -d'
{
  "settings": {
    "number_of_shards": 3,
    "number_of_replicas": 1
  }
}
'

# इंडेक्स हटाएँ
curl -X DELETE "localhost:9200/my_index?pretty"

# सभी इंडेक्सों की सूची
curl -X GET "localhost:9200/_cat/indices?v"

# इंडेक्स सांख्यिकी
curl -X GET "localhost:9200/my_index/_stats?pretty"

# मैपिंग परिभाषित करें
curl -X PUT "localhost:9200/products" -H 'Content-Type: application/json' -d'
{
  "mappings": {
    "properties": {
      "name": { "type": "text" },
      "price": { "type": "float" },
      "created_at": { "type": "date" },
      "tags": { "type": "keyword" },
      "description": {
        "type": "text",
        "analyzer": "english"
      }
    }
  }
}
'

# मैपिंग प्राप्त करें
curl -X GET "localhost:9200/products/_mapping?pretty"

# मैपिंग अपडेट करें (फील्ड जोड़ें)
curl -X PUT "localhost:9200/products/_mapping" -H 'Content-Type: application/json' -d'
{
  "properties": {
    "category": { "type": "keyword" }
  }
}
'

# इंडेक्स टेम्पलेट बनाएँ
curl -X PUT "localhost:9200/_index_template/logs_template" -H 'Content-Type: application/json' -d'
{
  "index_patterns": ["logs-*"],
  "template": {
    "settings": {
      "number_of_shards": 1
    },
    "mappings": {
      "properties": {
        "timestamp": { "type": "date" },
        "message": { "type": "text" },
        "level": { "type": "keyword" }
      }
    }
  }
}
'

# टेम्पलेट्स की सूची
curl -X GET "localhost:9200/_index_template?pretty"

# स्वचालित रूप से उत्पन्न ID के साथ दस्तावेज़ इंडेक्स करें
curl -X POST "localhost:9200/products/_doc?pretty" -H 'Content-Type: application/json' -d'
{
  "name": "लैपटॉप",
  "price": 999.99,
  "tags": ["इलेक्ट्रॉनिक्स", "कंप्यूटर"]
}
'

# विशिष्ट ID के साथ दस्तावेज़ इंडेक्स करें
curl -X PUT "localhost:9200/products/_doc/1?pretty" -H 'Content-Type: application/json' -d'
{
  "name": "लैपटॉप",
  "price": 999.99
}
'

# बुल्क इंडेक्सिंग
curl -X POST "localhost:9200/_bulk?pretty" -H 'Content-Type: application/json' -d'
{ "index": { "_index": "products", "_id": "1" }}
{ "name": "लैपटॉप", "price": 999.99 }
{ "index": { "_index": "products", "_id": "2" }}
{ "name": "माउस", "price": 29.99 }
'

# ID द्वारा दस्तावेज़ प्राप्त करें
curl -X GET "localhost:9200/products/_doc/1?pretty"

# कई दस्तावेज़ प्राप्त करें
curl -X GET "localhost:9200/_mget?pretty" -H 'Content-Type: application/json' -d'
{
  "docs": [
    { "_index": "products", "_id": "1" },
    { "_index": "products", "_id": "2" }
  ]
}
'

# दस्तावेज़ मौजूद है या नहीं जांचें
curl -I "localhost:9200/products/_doc/1"

# दस्तावेज़ अपडेट करें
curl -X POST "localhost:9200/products/_update/1?pretty" -H 'Content-Type: application/json' -d'
{
  "doc": {
    "price": 899.99
  }
}
'

# स्क्रिप्ट के साथ अपडेट करें
curl -X POST "localhost:9200/products/_update/1?pretty" -H 'Content-Type: application/json' -d'
{
  "script": {
    "source": "ctx._source.price *= params.discount",
    "params": {
      "discount": 0.9
    }
  }
}
'

# अपडेट या इन्सर्ट (अप्सर्ट)
curl -X POST "localhost:9200/products/_update/1?pretty" -H 'Content-Type: application/json' -d'
{
  "doc": {
    "price": 899.99
  },
  "doc_as_upsert": true
}
'

# ID द्वारा हटाएँ
curl -X DELETE "localhost:9200/products/_doc/1?pretty"

# क्वेरी द्वारा हटाएँ
curl -X POST "localhost:9200/products/_delete_by_query?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "match": {
      "name": "old"
    }
  }
}
'

# सभी मिलान
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "match_all": {}
  }
}
'

# मिलान क्वेरी
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "match": {
      "name": "लैपटॉप"
    }
  }
}
'

# मल्टी-मिलान क्वेरी
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "multi_match": {
      "query": "लैपटॉप गेमिंग",
      "fields": ["name", "description"]
    }
  }
}
'

# टर्म क्वेरी (सटीक मिलान)
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "term": {
      "tags": "इलेक्ट्रॉनिक्स"
    }
  }
}
'

# टर्म्स क्वेरी (कई मान)
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "terms": {
      "tags": ["इलेक्ट्रॉनिक्स", "कंप्यूटर"]
    }
  }
}
'

# रेंज क्वेरी
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "range": {
      "price": {
        "gte": 100,
        "lte": 1000
      }
    }
  }
}
'

# एक्सिस्ट्स क्वेरी
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "exists": {
      "field": "description"
    }
  }
}
'

# बूल क्वेरी (मस्ट, शुड, मस्ट_नॉट, फिल्टर)
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "bool": {
      "must": [
        { "match": { "name": "लैपटॉप" }}
      ],
      "filter": [
        { "range": { "price": { "gte": 500 }}}
      ],
      "should": [
        { "term": { "tags": "गेमिंग" }}
      ],
      "must_not": [
        { "term": { "tags": "रिफर्बिश्ड" }}
      ]
    }
  }
}
'

# वाइल्डकार्ड क्वेरी
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "wildcard": {
      "name": "lap*"
    }
  }
}
'

# फजी क्वेरी (टाइपो सहिष्णुता)
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "fuzzy": {
      "name": {
        "value": "लैपटोप",
        "fuzziness": "AUTO"
      }
    }
  }
}
'

# प्रीफिक्स क्वेरी
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "prefix": {
      "name": "lap"
    }
  }
}
'

# औसत, योग, न्यूनतम, अधिकतम
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "size": 0,
  "aggs": {
    "avg_price": { "avg": { "field": "price" }},
    "max_price": { "max": { "field": "price" }},
    "min_price": { "min": { "field": "price" }},
    "total_sales": { "sum": { "field": "price" }}
  }
}
'

# स्टैट्स एग्रीगेशन
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "size": 0,
  "aggs": {
    "price_stats": {
      "stats": { "field": "price" }
    }
  }
}
'

# टर्म्स एग्रीगेशन (समूह बनाएँ)
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "size": 0,
  "aggs": {
    "popular_tags": {
      "terms": {
        "field": "tags",
        "size": 10
      }
    }
  }
}
'

# रेंज एग्रीगेशन
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "size": 0,
  "aggs": {
    "price_ranges": {
      "range": {
        "field": "price",
        "ranges": [
          { "to": 50 },
          { "from": 50, "to": 100 },
          { "from": 100 }
        ]
      }
    }
  }
}
'

# डेट हिस्टोग्राम
curl -X GET "localhost:9200/logs/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "size": 0,
  "aggs": {
    "logs_over_time": {
      "date_histogram": {
        "field": "timestamp",
        "calendar_interval": "day"
      }
    }
  }
}
'

# नैस्टेड एग्रीगेशन्स
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "size": 0,
  "aggs": {
    "categories": {
      "terms": { "field": "category" },
      "aggs": {
        "avg_price": {
          "avg": { "field": "price" }
        }
      }
    }
  }
}
'

# फील्ड द्वारा सॉर्ट करें
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": { "match_all": {} },
  "sort": [
    { "price": { "order": "desc" }},
    { "_score": { "order": "desc" }}
  ]
}
'

# पेजिनेशन के साथ from/size
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "from": 0,
  "size": 10,
  "query": { "match_all": {} }
}
'

# गहरी पेजिनेशन के लिए सर्च एफ्टर
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "size": 10,
  "query": { "match_all": {} },
  "sort": [{ "price": "asc" }, { "_id": "asc" }],
  "search_after": [100, "product_123"]
}
'

# विशिष्ट फ़ील्ड का चयन करें
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": { "match_all": {} },
  "_source": ["name", "price"]
}
'

# हाइलाइटिंग
curl -X GET "localhost:9200/products/_search?pretty" -H 'Content-Type: application/json' -d'
{
  "query": {
    "match": { "description": "gaming laptop" }
  },
  "highlight": {
    "fields": {
      "description": {}
    }
  }
}
'

# एलियास बनाएं
curl -X POST "localhost:9200/_aliases?pretty" -H 'Content-Type: application/json' -d'
{
  "actions": [
    { "add": { "index": "products_v1", "alias": "products" }}
  ]
}
'

# नए इंडेक्स पर स्विच करें (शून्य डाउनटाइम)
curl -X POST "localhost:9200/_aliases?pretty" -H 'Content-Type: application/json' -d'
{
  "actions": [
    { "remove": { "index": "products_v1", "alias": "products" }},
    { "add": { "index": "products_v2", "alias": "products" }}
  ]
}
'

# एलियास सूची
curl -X GET "localhost:9200/_cat/aliases?v"

# एक इंडेक्स से दूसरे इंडेक्स में रीइंडेक्स करें
curl -X POST "localhost:9200/_reindex?pretty" -H 'Content-Type: application/json' -d'
{
  "source": {
    "index": "old_products"
  },
  "dest": {
    "index": "new_products"
  }
}
'

# क्वेरी के साथ रीइंडेक्स
curl -X POST "localhost:9200/_reindex?pretty" -H 'Content-Type: application/json' -d'
{
  "source": {
    "index": "products",
    "query": {
      "range": {
        "price": { "gte": 100 }
      }
    }
  },
  "dest": {
    "index": "expensive_products"
  }
}
'

# स्नैपशॉट रिपॉजिटरी रजिस्टर करें
curl -X PUT "localhost:9200/_snapshot/my_backup?pretty" -H 'Content-Type: application/json' -d'
{
  "type": "fs",
  "settings": {
    "location": "/mount/backups/my_backup"
  }
}
'

# स्नैपशॉट बनाएं
curl -X PUT "localhost:9200/_snapshot/my_backup/snapshot_1?wait_for_completion=true&pretty"

# स्नैपशॉट रिस्टोर करें
curl -X POST "localhost:9200/_snapshot/my_backup/snapshot_1/_restore?pretty"

# स्नैपशॉट सूची
curl -X GET "localhost:9200/_snapshot/my_backup/_all?pretty"

# स्नैपशॉट हटाएं
curl -X DELETE "localhost:9200/_snapshot/my_backup/snapshot_1?pretty"

# बुल्क इंडेक्सिंग के दौरान रिफ्रेश डिसएबल करें
curl -X PUT "localhost:9200/products/_settings?pretty" -H 'Content-Type: application/json' -d'
{
  "index": {
    "refresh_interval": "-1"
  }
}
'

# बुल्क इंडेक्सिंग के बाद पुनः सक्षम करें
curl -X PUT "localhost:9200/products/_settings?pretty" -H 'Content-Type: application/json' -d'
{
  "index": {
    "refresh_interval": "1s"
  }
}
'

# फोर्स मर्ज (अनुकूलन)
curl -X POST "localhost:9200/products/_forcemerge?max_num_segments=1&pretty"

# सभी कैश क्लियर करें
curl -X POST "localhost:9200/_cache/clear?pretty"

# विशिष्ट कैश क्लियर करें
curl -X POST "localhost:9200/products/_cache/clear?query=true&pretty"

# लंबित कार्य
curl -X GET "localhost:9200/_cat/pending_tasks?v"

# थ्रेड पूल सांख्यिकी
curl -X GET "localhost:9200/_cat/thread_pool?v"

# सेगमेंट जानकारी
curl -X GET "localhost:9200/_cat/segments?v"

# रिकवरी जानकारी
curl -X GET "localhost:9200/_cat/recovery?v&h=index,stage,time"

# कार्य API
curl -X GET "localhost:9200/_tasks?detailed=true&pretty"

from elasticsearch import Elasticsearch

# Elasticsearch से कनेक्ट करें
es = Elasticsearch(['http://localhost:9200'])

# दस्तावेज़ इंडेक्स करें
doc = {
    'name': 'Laptop',
    'price': 999.99,
    'tags': ['electronics']
}
es.index(index='products', id=1, document=doc)

# खोजें
resp = es.search(index='products', query={'match': {'name': 'laptop'}})
for hit in resp['hits']['hits']:
    print(hit['_source'])

# बुल्क इंडेक्सिंग
from elasticsearch.helpers import bulk

actions = [
    {
        '_index': 'products',
        '_id': i,
        '_source': {'name': f'Product {i}', 'price': i * 10}
    }
    for i in range(1000)
]
bulk(es, actions)

const { Client } = require('@elastic/elasticsearch');
const client = new Client({ node: 'http://localhost:9200' });

// दस्तावेज़ इंडेक्स करें
async function indexDoc() {
  await client.index({
    index: 'products',
    id: 1,
    document: {
      name: 'Laptop',
      price: 999.99
    }
  });
}

// खोजें
async function search() {
  const result = await client.search({
    index: 'products',
    query: {
      match: { name: 'laptop' }
    }
  });
  console.log(result.hits.hits);
}

// बुल्क इंडेक्सिंग
async function bulkIndex() {
  const operations = [];
  for (let i = 0; i < 1000; i++) {
    operations.push({ index: { _index: 'products', _id: i } });
    operations.push({ name: `Product ${i}`, price: i * 10 });
  }
  await client.bulk({ operations });
}

import { Client } from '@elastic/elasticsearch';

interface Product {
  name: string;
  price: number;
  tags?: string[];
  created_at?: Date;
}

const client = new Client({ node: 'http://localhost:9200' });

async function indexProduct(product: Product, id: number): Promise<void> {
  await client.index<Product>({
    index: 'products',
    id: id.toString(),
    document: product
  });
}

async function searchProducts(query: string): Promise<Product[]> {
  const result = await client.search<Product>({
    index: 'products',
    query: {
      match: { name: query }
    }
  });

  return result.hits.hits.map(hit => hit._source as Product);
}