POST /<name>/_async_search HTTP/1.1
Host: <Endpoint>
Authorization: <Authorization String>

POST /my-index/_async_search HTTP/1.1
Host: bls-log.bj.baidubce.com
Authorization:bce-auth-v1/18717522d39411e9b721df098b0b908c/2019-09-10T07:00:20Z/1800/content-type;host;x-bce-date;x-bce-request-id/6a7cb6c9ac7ec156c805e55e7d0bcfc443b47feee97cf099c1c0d93a0b4c8304
Content-Type: application/json; charset=utf-8
{
    // Required: Elasticsearch query syntax. Refer to the description below for supported syntax
    "query": {
        "bool": {
            "filter": [
                {
                    "range": {
                        "@timestamp": {
                            "format": "strict_date_optional_time",
                            "gte": "2025-08-01T04:18:44.642Z",
                            "lte": "2025-08-01T06:18:44.642Z"
                        }
                    }
                }
            ]
        }
    },
    // Optional: Elasticsearch aggregation syntax. Refer to the description below for supported syntax
    "aggs": {
        "0": {
            "terms": {
                "field": "level",
                "order": {
                    "_count": "desc"
                },
                "size": 3
            },
            "aggs": {
                "1": {
                    "date_histogram": {
                        "field": "@timestamp",
                        "fixed_interval": "30m",
                    }
                }
            }
        }
    },
    // Field list in response: All fields by default
    "fields": [
        {
            "field": "*",
            "include_unmapped": "true"
        }
    ],
    // Optional: Sorting: Currently, only sorting by timestamp is supported; sorted in descending order of time by default
    "sort": [
        {
            "timestamp": {
                "order": "desc",
            }
        }
    ],
    // Optional: Next-page cursor: Currently, only the first element of the array is supported. Queries start from the first entry at the specified time by default
    "searchAfter": [
        "CJPphaWXMxCMgNz4haWXMxj0Aw"
    ]
    // Highlight configuration: Optional
    "highlight": {
        // Optional: Prefix identifier for highlight: Default is @kibana-highlighted-field@
        "pre_tags": [
            "@kibana-highlighted-field@"
        ],
        // Optional: Suffix identifier for highlight: Default is @/kibana-highlighted-field@
        "post_tags": [
            "@/kibana-highlighted-field@"
        ]
    }
    // Optional: Number of matching logs to return: Default is 1000
    "size": 20
}

HTTP/1.1 204
Content-Type: application/json; charset=utf-8
X-Bce-Request-Id: 2eeba101-4cc7-4cfe-b5ac-a3be8d060e33
Date: Fri, 10 Apr 2020 04:42:37 GMT
// Success example
{
  // Query start time
  "start_time_in_millis": 1696324475123,
  // Query end time
  "expiration_time_in_millis": 1696929275123,
  // Response body
  "response": {
    // Query duration
    "took": 132,
    // Whether timeout occurred
    "timed_out": false,
    // Query shard status
    "_shards": {
      // Total number of shards queried: Currently fixed at 1
      "total": 1,
      // Number of successful shards
      "successful": 1,
      // Number of skipped shards
      "skipped": 0,
      // Number of failed shards
      "failed": 0
    },
    // Query match results
    "hits": {
      // Specific log record information: One element represents one log record
      "hits": [
        {
          // Project and logstore information: For non-default projects, the format is ProjectName$LogStoreName; for the default project, only the logstore name is displayed
          "_index": "project$logstore",
          // Logstore record ID: Composed of offset and timestamp
          "_id": "1758596174317#28812839737868314",
          // Score: Currently fixed at 0
          "_score": 0,
          // Sort field: Used to retrieve the next page
          "sort": [
             "CJPphaWXMxCMgNz4haWXMxj0Aw"
           ],
           // Version: Currently fixed at 1
           "_version": 1
           // Logstore field information
           "fields": {
             // Time field
             "@timestamp": [
                "2025-09-23T03:32:48.750Z"
             ],
             // Index field caller
             "caller": [
                "middleware/log_request.go:47"
             ],
             // Index field ip
             "ip": [
                "10.164.105.42"
             ],
           }
        }
      ]
    },
    // Log aggregation information
    "aggregations": {
        // First bucket aggregation information
        "0": {
            "buckets": [
                {
                    // Second bucket aggregation information
                    "1": {
                        "buckets": [
                            {
                                // Total number of logs in this bucket
                                "doc_count": 66626,
                                // Name of the first bucket
                                "key": 1758508200000,
                                // String information
                                "key_as_string": "2025-09-22T02:30:00.000+00:00"
                            },
                            {
                                "doc_count": 189923,
                                "key": 1758510000000,
                                "key_as_string": "2025-09-22T03:00:00.000+00:00"
                            },
                        ]
                    },
                    // Number of matching logs in the second bucket
                    "doc_count": 9185770,
                    // Name of the second bucket
                    "key": "info"
                },
                {
                    "1": {
                        "buckets": [
                            {
                                "doc_count": 31945,
                                "key": 1758508200000,
                                "key_as_string": "2025-09-22T02:30:00.000+00:00"
                            },
                            {
                                "doc_count": 84637,
                                "key": 1758510000000,
                                "key_as_string": "2025-09-22T03:00:00.000+00:00"
                            }
                        ]
                    },
                    "doc_count": 4093518,
                    "key": "warn"
                }
            ],
            // Number of error documents
            "doc_count_error_upper_bound": 0,
            // Number of other documents
            "sum_other_doc_count": 565
        }
     }
  }
}
// Exception example
{
  "error": {
    "root_cause": [
      {
        "type": "status_exception",
        "reason": "exist stat aggregations syntax not support",
      }
    ],
    "caused_by": {
        "type": "search_phase_execution_exception",
        "reason": "all shards failed"
        "caused_by": {
            "type": "parse_exception",
            "reason": "exist stat aggregations syntax not support"
        }
    }
    "type": "status_exception",
    "reason": "error while executing search"
  },
  "status": 500
}