curl --request PATCH \
  --url https://api.gains.trade/v1/{chain}/orders/{id} \
  --header 'Content-Type: application/json' \
  --header 'X-Gains-Signature: <api-key>' \
  --data '
{
  "price": "0.5",
  "size": "0.5",
  "sl": "0.5",
  "tp": "0.5",
  "slippage": "0.5"
}
'

import requests

url = "https://api.gains.trade/v1/{chain}/orders/{id}"

payload = {
    "price": "0.5",
    "size": "0.5",
    "sl": "0.5",
    "tp": "0.5",
    "slippage": "0.5"
}
headers = {
    "X-Gains-Signature": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {'X-Gains-Signature': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({price: '0.5', size: '0.5', sl: '0.5', tp: '0.5', slippage: '0.5'})
};

fetch('https://api.gains.trade/v1/{chain}/orders/{id}', 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.gains.trade/v1/{chain}/orders/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'price' => '0.5',
    'size' => '0.5',
    'sl' => '0.5',
    'tp' => '0.5',
    'slippage' => '0.5'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Gains-Signature: <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.gains.trade/v1/{chain}/orders/{id}"

	payload := strings.NewReader("{\n  \"price\": \"0.5\",\n  \"size\": \"0.5\",\n  \"sl\": \"0.5\",\n  \"tp\": \"0.5\",\n  \"slippage\": \"0.5\"\n}")

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

	req.Header.Add("X-Gains-Signature", "<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.patch("https://api.gains.trade/v1/{chain}/orders/{id}")
  .header("X-Gains-Signature", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"price\": \"0.5\",\n  \"size\": \"0.5\",\n  \"sl\": \"0.5\",\n  \"tp\": \"0.5\",\n  \"slippage\": \"0.5\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gains.trade/v1/{chain}/orders/{id}")

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

request = Net::HTTP::Patch.new(url)
request["X-Gains-Signature"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"price\": \"0.5\",\n  \"size\": \"0.5\",\n  \"sl\": \"0.5\",\n  \"tp\": \"0.5\",\n  \"slippage\": \"0.5\"\n}"

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

{
  "order": {
    "id": "5316911983139663",
    "trader": "0x73b3A111C5BCCf9086c97B96e0AbAad69Dc4f523",
    "market": "BTC/USD",
    "side": "long",
    "type": "market",
    "size": "0.5",
    "price": "0.5",
    "leverage": "0.5",
    "collateral": "<string>",
    "sl": "0.5",
    "tp": "0.5",
    "reduceOnly": true,
    "slippage": "0.5",
    "clientId": "<string>",
    "status": "prepared",
    "txHash": "0xabc123",
    "expiresAt": 123,
    "fill": {
      "price": "0.5",
      "size": "0.5",
      "collateral": "0.5",
      "feeCollateral": "0.5",
      "txHash": "0xabc123",
      "timestamp": 123,
      "positionId": "5316911983139663"
    },
    "reason": "NONE",
    "createdAt": 123,
    "updatedAt": 123
  },
  "transaction": {
    "to": "0x73b3A111C5BCCf9086c97B96e0AbAad69Dc4f523",
    "data": "0xabc123",
    "value": "0",
    "chainId": 123,
    "gas": "<string>",
    "expiresAt": 123
  }
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "details": {}
}