curl --request POST \
  --url https://api.bigdata.com/v1/watchlists \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "name": "MAMAA stocks",
  "description": "Large-cap US technology companies",
  "items": [
    "0157B1",
    "12E454",
    "228D42",
    "4A6F00",
    "D8442A"
  ]
}
'

import requests

url = "https://api.bigdata.com/v1/watchlists"

payload = {
    "name": "MAMAA stocks",
    "description": "Large-cap US technology companies",
    "items": ["0157B1", "12E454", "228D42", "4A6F00", "D8442A"]
}
headers = {
    "X-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'MAMAA stocks',
    description: 'Large-cap US technology companies',
    items: ['0157B1', '12E454', '228D42', '4A6F00', 'D8442A']
  })
};

fetch('https://api.bigdata.com/v1/watchlists', 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.bigdata.com/v1/watchlists",
  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([
    'name' => 'MAMAA stocks',
    'description' => 'Large-cap US technology companies',
    'items' => [
        '0157B1',
        '12E454',
        '228D42',
        '4A6F00',
        'D8442A'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-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.bigdata.com/v1/watchlists"

	payload := strings.NewReader("{\n  \"name\": \"MAMAA stocks\",\n  \"description\": \"Large-cap US technology companies\",\n  \"items\": [\n    \"0157B1\",\n    \"12E454\",\n    \"228D42\",\n    \"4A6F00\",\n    \"D8442A\"\n  ]\n}")

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

	req.Header.Add("X-API-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.bigdata.com/v1/watchlists")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"MAMAA stocks\",\n  \"description\": \"Large-cap US technology companies\",\n  \"items\": [\n    \"0157B1\",\n    \"12E454\",\n    \"228D42\",\n    \"4A6F00\",\n    \"D8442A\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.bigdata.com/v1/watchlists")

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

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"MAMAA stocks\",\n  \"description\": \"Large-cap US technology companies\",\n  \"items\": [\n    \"0157B1\",\n    \"12E454\",\n    \"228D42\",\n    \"4A6F00\",\n    \"D8442A\"\n  ]\n}"

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

{
  "metadata": {
    "request_id": "9f2c6b18-4e7a-4d05-8c31-0a6e5d2b91f4",
    "timestamp": "2026-10-23T09:00:00Z"
  },
  "results": {
    "id": "b548fc37-87d3-4bc7-b482-eeeeb7060f78",
    "user_id": "A1B2C3D4E5",
    "created_at": "2026-10-20T10:15:00.000000Z",
    "updated_at": "2026-10-23T08:30:00.000000Z",
    "interacted_at": null,
    "name": "MAMAA stocks",
    "description": "Large-cap US technology companies",
    "items": [
      "0157B1",
      "12E454",
      "228D42",
      "4A6F00",
      "D8442A"
    ]
  }
}

{
  "errors": [
    {
      "message": "Invalid payload"
    }
  ],
  "metadata": {
    "request_id": "9f2c6b18-4e7a-4d05-8c31-0a6e5d2b91f4",
    "timestamp": "2026-10-23T09:00:00Z"
  }
}

{
  "errors": [
    {
      "message": "Forbidden"
    }
  ],
  "metadata": {
    "request_id": "9f2c6b18-4e7a-4d05-8c31-0a6e5d2b91f4",
    "timestamp": "2026-10-23T09:00:00Z"
  }
}

{
  "errors": [
    {
      "message": "Conflict"
    }
  ],
  "metadata": {
    "request_id": "9f2c6b18-4e7a-4d05-8c31-0a6e5d2b91f4",
    "timestamp": "2026-10-23T09:00:00Z"
  }
}

{
  "errors": [
    {
      "message": "Unprocessable Entity"
    }
  ],
  "metadata": {
    "request_id": "9f2c6b18-4e7a-4d05-8c31-0a6e5d2b91f4",
    "timestamp": "2026-10-23T09:00:00Z"
  }
}

{
  "errors": [
    {
      "message": "Internal Server Error"
    }
  ],
  "metadata": {
    "request_id": "9f2c6b18-4e7a-4d05-8c31-0a6e5d2b91f4",
    "timestamp": "2026-10-23T09:00:00Z"
  }
}