curl --request POST \
  --url https://api.example.com/v3/spans/fields \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "application_id": "c688de46-2054-49ab-b85f-0f0178cb44d7",
  "start_time": "2026-05-01T00:00:00Z",
  "end_time": "2026-05-18T23:59:59Z",
  "filter": {
    "condition": "AND",
    "rules": [
      {
        "field": "Span::span_type",
        "operator": "eq",
        "value": "llm"
      }
    ]
  }
}
'

import requests

url = "https://api.example.com/v3/spans/fields"

payload = {
    "application_id": "c688de46-2054-49ab-b85f-0f0178cb44d7",
    "start_time": "2026-05-01T00:00:00Z",
    "end_time": "2026-05-18T23:59:59Z",
    "filter": {
        "condition": "AND",
        "rules": [
            {
                "field": "Span::span_type",
                "operator": "eq",
                "value": "llm"
            }
        ]
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    application_id: 'c688de46-2054-49ab-b85f-0f0178cb44d7',
    start_time: '2026-05-01T00:00:00Z',
    end_time: '2026-05-18T23:59:59Z',
    filter: {
      condition: 'AND',
      rules: [{field: 'Span::span_type', operator: 'eq', value: 'llm'}]
    }
  })
};

fetch('https://api.example.com/v3/spans/fields', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.example.com/v3/spans/fields",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'application_id' => 'c688de46-2054-49ab-b85f-0f0178cb44d7',
    'start_time' => '2026-05-01T00:00:00Z',
    'end_time' => '2026-05-18T23:59:59Z',
    'filter' => [
        'condition' => 'AND',
        'rules' => [
                [
                                'field' => 'Span::span_type',
                                'operator' => 'eq',
                                'value' => 'llm'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/v3/spans/fields"

	payload := strings.NewReader("{\n  \"application_id\": \"c688de46-2054-49ab-b85f-0f0178cb44d7\",\n  \"start_time\": \"2026-05-01T00:00:00Z\",\n  \"end_time\": \"2026-05-18T23:59:59Z\",\n  \"filter\": {\n    \"condition\": \"AND\",\n    \"rules\": [\n      {\n        \"field\": \"Span::span_type\",\n        \"operator\": \"eq\",\n        \"value\": \"llm\"\n      }\n    ]\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.example.com/v3/spans/fields")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"application_id\": \"c688de46-2054-49ab-b85f-0f0178cb44d7\",\n  \"start_time\": \"2026-05-01T00:00:00Z\",\n  \"end_time\": \"2026-05-18T23:59:59Z\",\n  \"filter\": {\n    \"condition\": \"AND\",\n    \"rules\": [\n      {\n        \"field\": \"Span::span_type\",\n        \"operator\": \"eq\",\n        \"value\": \"llm\"\n      }\n    ]\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/v3/spans/fields")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"application_id\": \"c688de46-2054-49ab-b85f-0f0178cb44d7\",\n  \"start_time\": \"2026-05-01T00:00:00Z\",\n  \"end_time\": \"2026-05-18T23:59:59Z\",\n  \"filter\": {\n    \"condition\": \"AND\",\n    \"rules\": [\n      {\n        \"field\": \"Span::span_type\",\n        \"operator\": \"eq\",\n        \"value\": \"llm\"\n      }\n    ]\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "data": {
    "total_spans": 10000,
    "sampled": true,
    "span_attributes": [
      {
        "key": "system.gen_ai.usage.input_tokens",
        "count": 10000
      },
      {
        "key": "system.gen_ai.usage.output_tokens",
        "count": 10000
      },
      {
        "key": "system.gen_ai.context.retrieval",
        "count": 5
      }
    ],
    "evaluator_outputs": [
      {
        "rule_name": "Safety",
        "output_name": "is_toxic",
        "count": 10000
      },
      {
        "rule_name": "Faithfulness",
        "output_name": "score",
        "count": 3200
      }
    ]
  },
  "api_version": "3.0",
  "kind": "NORMAL"
}

{
  "api_version": "3.0",
  "kind": "ERROR",
  "error": {
    "code": 400,
    "message": "Resource Not Found",
    "errors": [
      {
        "reason": "ResourceNotFoundException",
        "message": "Resource Not Found",
        "help": "<string>"
      }
    ]
  }
}

{
  "api_version": "3.0",
  "kind": "ERROR",
  "error": {
    "code": 400,
    "message": "Resource Not Found",
    "errors": [
      {
        "reason": "ResourceNotFoundException",
        "message": "Resource Not Found",
        "help": "<string>"
      }
    ]
  }
}