curl --request POST \
  --url https://api.revenuebase.ai/v2/contact/count \
  --header 'Content-Type: application/json' \
  --header 'X-Key: <api-key>' \
  --data '
{
  "filter": {
    "type": "group",
    "op": "AND",
    "children": [
      {
        "type": "condition",
        "column": "",
        "value": "<string>",
        "valueList": [
          "<string>"
        ],
        "id": "<string>"
      }
    ],
    "negate": false,
    "id": "<string>"
  },
  "mode": "fast"
}
'

import requests

url = "https://api.revenuebase.ai/v2/contact/count"

payload = {
    "filter": {
        "type": "group",
        "op": "AND",
        "children": [
            {
                "type": "condition",
                "column": "",
                "value": "<string>",
                "valueList": ["<string>"],
                "id": "<string>"
            }
        ],
        "negate": False,
        "id": "<string>"
    },
    "mode": "fast"
}
headers = {
    "X-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    filter: {
      type: 'group',
      op: 'AND',
      children: [
        {
          type: 'condition',
          column: '',
          value: '<string>',
          valueList: ['<string>'],
          id: '<string>'
        }
      ],
      negate: false,
      id: '<string>'
    },
    mode: 'fast'
  })
};

fetch('https://api.revenuebase.ai/v2/contact/count', 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.revenuebase.ai/v2/contact/count",
  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([
    'filter' => [
        'type' => 'group',
        'op' => 'AND',
        'children' => [
                [
                                'type' => 'condition',
                                'column' => '',
                                'value' => '<string>',
                                'valueList' => [
                                                                '<string>'
                                ],
                                'id' => '<string>'
                ]
        ],
        'negate' => false,
        'id' => '<string>'
    ],
    'mode' => 'fast'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Key: <api-key>"
  ],
]);

$response = curl_exec($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.revenuebase.ai/v2/contact/count"

	payload := strings.NewReader("{\n  \"filter\": {\n    \"type\": \"group\",\n    \"op\": \"AND\",\n    \"children\": [\n      {\n        \"type\": \"condition\",\n        \"column\": \"\",\n        \"value\": \"<string>\",\n        \"valueList\": [\n          \"<string>\"\n        ],\n        \"id\": \"<string>\"\n      }\n    ],\n    \"negate\": false,\n    \"id\": \"<string>\"\n  },\n  \"mode\": \"fast\"\n}")

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

	req.Header.Add("X-Key", "<api-key>")
	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.revenuebase.ai/v2/contact/count")
  .header("X-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"filter\": {\n    \"type\": \"group\",\n    \"op\": \"AND\",\n    \"children\": [\n      {\n        \"type\": \"condition\",\n        \"column\": \"\",\n        \"value\": \"<string>\",\n        \"valueList\": [\n          \"<string>\"\n        ],\n        \"id\": \"<string>\"\n      }\n    ],\n    \"negate\": false,\n    \"id\": \"<string>\"\n  },\n  \"mode\": \"fast\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.revenuebase.ai/v2/contact/count")

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

request = Net::HTTP::Post.new(url)
request["X-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"filter\": {\n    \"type\": \"group\",\n    \"op\": \"AND\",\n    \"children\": [\n      {\n        \"type\": \"condition\",\n        \"column\": \"\",\n        \"value\": \"<string>\",\n        \"valueList\": [\n          \"<string>\"\n        ],\n        \"id\": \"<string>\"\n      }\n    ],\n    \"negate\": false,\n    \"id\": \"<string>\"\n  },\n  \"mode\": \"fast\"\n}"

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

{}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}