const url = 'https://api.openfx.com/v3/fx/trades';
const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'X-Request-Signature': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({quoteId: 'qte_3FfGK34vwMvVFDedyb2nkf'})
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

import requests, json, uuid
# sign_request mints a fresh 60s JWT AND the matching X-Request-Signature. See Authentication
# `quote` is the response from createQuote

url = 'https://api.openfx.com/v3/fx/trades'
body = json.dumps({'quoteId': quote['id']}).encode()
headers, body = sign_request('POST', url, body)
trade = requests.post(
    url,
    headers={**headers, 'Idempotency-Key': str(uuid.uuid4())},
    data=body,
).json()

HttpResponse<String> response = Unirest.post("https://api.openfx.com/v3/fx/trades")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .header("X-Request-Signature", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"quoteId\": \"qte_3FfGK34vwMvVFDedyb2nkf\"\n}")
  .asString();

CURL *hnd = curl_easy_init();

curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "POST");
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, stdout);
curl_easy_setopt(hnd, CURLOPT_URL, "https://api.openfx.com/v3/fx/trades");

struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Idempotency-Key: <idempotency-key>");
headers = curl_slist_append(headers, "Authorization: Bearer <token>");
headers = curl_slist_append(headers, "X-Request-Signature: <api-key>");
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);

curl_easy_setopt(hnd, CURLOPT_POSTFIELDS, "{\n  \"quoteId\": \"qte_3FfGK34vwMvVFDedyb2nkf\"\n}");

CURLcode ret = curl_easy_perform(hnd);

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.openfx.com/v3/fx/trades"

	payload := strings.NewReader("{\n  \"quoteId\": \"qte_3FfGK34vwMvVFDedyb2nkf\"\n}")

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("X-Request-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))

}

# X-Request-Signature is an ES256 signature; compute it with one of the
# language helpers in /v3/authentication (shell signing is impractical).
curl -X POST https://api.openfx.com/v3/fx/trades \
  -H "Authorization: Bearer $OPENFX_JWT" \
  -H "X-Request-Signature: $OPENFX_SIGNATURE" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{ "quoteId": "qte_3FfGK34vwMvVFDedyb2nkf" }'