BODY='{"quantity":200,"price":26000}'
BODY_HASH=$(printf '%s' "$BODY" | openssl dgst -sha256 -hex | awk '{print $2}')

curl -X PUT \
  -H "X-FH-APIKEY: $FINHAY_API_KEY" \
  -H "X-FH-TIMESTAMP: $TIMESTAMP_MS" \
  -H "X-FH-NONCE: $NONCE_UUID" \
  -H "X-FH-SIGNATURE: $SIGNATURE_HEX" \
  -H "X-FH-BODYHASH: $BODY_HASH" \
  -H "X-FH-2FA-TOKEN: $FINHAY_2FA_TOKEN" \
  -H "device-id: $DEVICE_ID" \
  -H "Content-Type: application/json" \
  -d "$BODY" \
  "https://open-api.fhsc.com.vn/trading/oa/sub-accounts/$SUB_ACCOUNT_NORMAL/orders/ORD123456"

import requests

url = "https://open-api.fhsc.com.vn/trading/oa/sub-accounts/{subAccountId}/orders/{orderId}"

payload = {
    "quantity": 200,
    "price": 26000
}
headers = {
    "device-id": "<device-id>",
    "X-FH-APIKEY": "<api-key>",
    "X-FH-TIMESTAMP": "<api-key>",
    "X-FH-NONCE": "<api-key>",
    "X-FH-SIGNATURE": "<api-key>",
    "X-FH-BODYHASH": "<api-key>",
    "X-FH-2FA-TOKEN": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {
    'device-id': '<device-id>',
    'X-FH-APIKEY': '<api-key>',
    'X-FH-TIMESTAMP': '<api-key>',
    'X-FH-NONCE': '<api-key>',
    'X-FH-SIGNATURE': '<api-key>',
    'X-FH-BODYHASH': '<api-key>',
    'X-FH-2FA-TOKEN': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({quantity: 200, price: 26000})
};

fetch('https://open-api.fhsc.com.vn/trading/oa/sub-accounts/{subAccountId}/orders/{orderId}', 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://open-api.fhsc.com.vn/trading/oa/sub-accounts/{subAccountId}/orders/{orderId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'quantity' => 200,
    'price' => 26000
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-FH-2FA-TOKEN: <api-key>",
    "X-FH-APIKEY: <api-key>",
    "X-FH-BODYHASH: <api-key>",
    "X-FH-NONCE: <api-key>",
    "X-FH-SIGNATURE: <api-key>",
    "X-FH-TIMESTAMP: <api-key>",
    "device-id: <device-id>"
  ],
]);

$response = curl_exec($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://open-api.fhsc.com.vn/trading/oa/sub-accounts/{subAccountId}/orders/{orderId}"

	payload := strings.NewReader("{\n  \"quantity\": 200,\n  \"price\": 26000\n}")

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

	req.Header.Add("device-id", "<device-id>")
	req.Header.Add("X-FH-APIKEY", "<api-key>")
	req.Header.Add("X-FH-TIMESTAMP", "<api-key>")
	req.Header.Add("X-FH-NONCE", "<api-key>")
	req.Header.Add("X-FH-SIGNATURE", "<api-key>")
	req.Header.Add("X-FH-BODYHASH", "<api-key>")
	req.Header.Add("X-FH-2FA-TOKEN", "<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.put("https://open-api.fhsc.com.vn/trading/oa/sub-accounts/{subAccountId}/orders/{orderId}")
  .header("device-id", "<device-id>")
  .header("X-FH-APIKEY", "<api-key>")
  .header("X-FH-TIMESTAMP", "<api-key>")
  .header("X-FH-NONCE", "<api-key>")
  .header("X-FH-SIGNATURE", "<api-key>")
  .header("X-FH-BODYHASH", "<api-key>")
  .header("X-FH-2FA-TOKEN", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"quantity\": 200,\n  \"price\": 26000\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://open-api.fhsc.com.vn/trading/oa/sub-accounts/{subAccountId}/orders/{orderId}")

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

request = Net::HTTP::Put.new(url)
request["device-id"] = '<device-id>'
request["X-FH-APIKEY"] = '<api-key>'
request["X-FH-TIMESTAMP"] = '<api-key>'
request["X-FH-NONCE"] = '<api-key>'
request["X-FH-SIGNATURE"] = '<api-key>'
request["X-FH-BODYHASH"] = '<api-key>'
request["X-FH-2FA-TOKEN"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"quantity\": 200,\n  \"price\": 26000\n}"

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

{
  "error_code": "0",
  "message": "success",
  "result": [
    {
      "order_id": "ORD123456",
      "account_id": "120C000008.1",
      "transaction_date": "2026-05-28",
      "symbol": "HPG",
      "order_side": "BUY",
      "order_quantity": 200,
      "limit_price": 26000,
      "market_price": null,
      "execute_quantity": 0,
      "execute_price": 0,
      "order_status": "SENT",
      "fee_amount": 0,
      "tax_amount": 0,
      "execute_amount": 0,
      "order_type": "LO",
      "code": null,
      "rejected_reason": null,
      "lot": "EVEN"
    }
  ]
}

{
  "error_code": "400",
  "message": "Invalid parameter"
}

{
  "error_code": "401",
  "message": "Invalid signature"
}

{
  "error_code": "OTP_SESSION_EXPIRED",
  "message": "2FA session has expired"
}

{
  "error_code": "404",
  "message": "Not found"
}

{
  "error_code": "429",
  "message": "Too many requests"
}

{
  "error_code": "500",
  "message": "Internal server error"
}