curl --request POST \
  --url https://synthesis.trade/api/v1/markets/sparklines \
  --header 'Content-Type: application/json' \
  --data '
[
  "12345",
  "KXBTC-25-T100000:Yes"
]
'

import requests

url = "https://synthesis.trade/api/v1/markets/sparklines"

payload = ["12345", "KXBTC-25-T100000:Yes"]
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify(['12345', 'KXBTC-25-T100000:Yes'])
};

fetch('https://synthesis.trade/api/v1/markets/sparklines', 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://synthesis.trade/api/v1/markets/sparklines",
  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([
    '12345',
    'KXBTC-25-T100000:Yes'
  ]),
  CURLOPT_HTTPHEADER => [
    "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://synthesis.trade/api/v1/markets/sparklines"

	payload := strings.NewReader("[\n  \"12345\",\n  \"KXBTC-25-T100000:Yes\"\n]")

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

	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://synthesis.trade/api/v1/markets/sparklines")
  .header("Content-Type", "application/json")
  .body("[\n  \"12345\",\n  \"KXBTC-25-T100000:Yes\"\n]")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://synthesis.trade/api/v1/markets/sparklines")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "[\n  \"12345\",\n  \"KXBTC-25-T100000:Yes\"\n]"

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

{
  "success": true,
  "response": {
    "12345": [
      0.41,
      0.44,
      0.48
    ],
    "KXBTC-25-T100000:Yes": [
      0.52,
      0.54,
      0.58
    ]
  }
}