curl --request POST \
  --url https://api.bron.org/workspaces/{workspaceId}/transactions/dry-run \
  --header 'Content-Type: application/json' \
  --data '
{
  "accountId": "w9jh0gf3w9qaxlre7enezt17",
  "externalId": "w2u573pjj5wl97p4v325z4a",
  "transactionType": "withdrawal",
  "description": "Withdrawal to an exchange",
  "expiresAt": "1753370264978",
  "params": {
    "assetId": "<string>"
  }
}
'

import requests

url = "https://api.bron.org/workspaces/{workspaceId}/transactions/dry-run"

payload = {
    "accountId": "w9jh0gf3w9qaxlre7enezt17",
    "externalId": "w2u573pjj5wl97p4v325z4a",
    "transactionType": "withdrawal",
    "description": "Withdrawal to an exchange",
    "expiresAt": "1753370264978",
    "params": { "assetId": "<string>" }
}
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({
    accountId: 'w9jh0gf3w9qaxlre7enezt17',
    externalId: 'w2u573pjj5wl97p4v325z4a',
    transactionType: 'withdrawal',
    description: 'Withdrawal to an exchange',
    expiresAt: '1753370264978',
    params: {assetId: '<string>'}
  })
};

fetch('https://api.bron.org/workspaces/{workspaceId}/transactions/dry-run', 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.bron.org/workspaces/{workspaceId}/transactions/dry-run",
  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([
    'accountId' => 'w9jh0gf3w9qaxlre7enezt17',
    'externalId' => 'w2u573pjj5wl97p4v325z4a',
    'transactionType' => 'withdrawal',
    'description' => 'Withdrawal to an exchange',
    'expiresAt' => '1753370264978',
    'params' => [
        'assetId' => '<string>'
    ]
  ]),
  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://api.bron.org/workspaces/{workspaceId}/transactions/dry-run"

	payload := strings.NewReader("{\n  \"accountId\": \"w9jh0gf3w9qaxlre7enezt17\",\n  \"externalId\": \"w2u573pjj5wl97p4v325z4a\",\n  \"transactionType\": \"withdrawal\",\n  \"description\": \"Withdrawal to an exchange\",\n  \"expiresAt\": \"1753370264978\",\n  \"params\": {\n    \"assetId\": \"<string>\"\n  }\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://api.bron.org/workspaces/{workspaceId}/transactions/dry-run")
  .header("Content-Type", "application/json")
  .body("{\n  \"accountId\": \"w9jh0gf3w9qaxlre7enezt17\",\n  \"externalId\": \"w2u573pjj5wl97p4v325z4a\",\n  \"transactionType\": \"withdrawal\",\n  \"description\": \"Withdrawal to an exchange\",\n  \"expiresAt\": \"1753370264978\",\n  \"params\": {\n    \"assetId\": \"<string>\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.bron.org/workspaces/{workspaceId}/transactions/dry-run")

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  \"accountId\": \"w9jh0gf3w9qaxlre7enezt17\",\n  \"externalId\": \"w2u573pjj5wl97p4v325z4a\",\n  \"transactionType\": \"withdrawal\",\n  \"description\": \"Withdrawal to an exchange\",\n  \"expiresAt\": \"1753370264978\",\n  \"params\": {\n    \"assetId\": \"<string>\"\n  }\n}"

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

{
  "accountId": "<string>",
  "transactionType": "deposit",
  "description": "Withdrawal to an exchange",
  "estimations": [
    {
      "assetId": "<string>",
      "createdAt": "<string>",
      "estimationId": "<string>",
      "eventType": "in",
      "transactionId": "<string>",
      "amount": "<string>",
      "extra": {
        "allowance": [
          {
            "address": "<string>",
            "amount": "<string>",
            "networkId": "<string>",
            "unlimited": true
          }
        ],
        "in": [
          {
            "address": "<string>",
            "amount": "<string>",
            "fromAccountId": "<string>",
            "fromAddressBookRecordId": "<string>",
            "networkId": "<string>"
          }
        ],
        "out": [
          {
            "address": "<string>",
            "amount": "<string>",
            "memo": "<string>",
            "networkId": "<string>",
            "toAccountId": "<string>",
            "toAddressBookRecordId": "<string>"
          }
        ],
        "rewardInfo": {},
        "signingMessage": {
          "message": "<string>",
          "version": "<string>"
        },
        "stakeInfo": [
          {}
        ],
        "transactionFailed": true,
        "walletStateInit": "<string>"
      },
      "networkId": "<string>",
      "symbol": "<string>",
      "usdAmount": "<string>"
    }
  ],
  "externalId": "<string>",
  "extra": {
    "approvers": {
      "approvedBy": [
        "<string>"
      ],
      "availableApprovers": [
        "<string>"
      ],
      "limitId": "w2u573pjj5wl97p4v325z4a9",
      "number": "2",
      "securityDelayDuration": "<string>",
      "securityDelayExpiresAt": "<string>",
      "skipApproval": true
    },
    "blockchainDetails": [
      {
        "blockchainTxId": "b79aae771ec6b779d97b10911bd938f5e18a92732c106e9dab4e33cd21ef7fb0",
        "networkId": "BTC"
      }
    ],
    "blockchainRequest": {
      "externalBroadcast": true,
      "networkId": "<string>"
    },
    "bronLock": {
      "burn": {
        "redeemRequestId": "<string>",
        "releaseBlockchainTxId": "<string>",
        "releaseSigningRequestId": "<string>",
        "releaseTransactionId": "<string>"
      }
    },
    "confirmations": "12",
    "depositTransactionId": "j1r166mwjfxe6fejw4i2ucwm",
    "description": "Withdrawal to an exchange",
    "fromAccountId": "w9jh0gf3w9qaxlre7enezt17",
    "fromAddress": "TSz8S8sfhWbaDKVH5bVM1U2rekX3Gr2zxY",
    "fromWorkspaceIcon": "<string>",
    "fromWorkspaceName": "<string>",
    "fromWorkspaceTag": "bron",
    "memo": "<string>",
    "signingRequestId": "<string>",
    "toAccountId": "t2pm9t9x4k0a3h353f369jk8",
    "toAddress": "tb1qaprk5xy6t0m8yjdlnxscxqn9ek23uaej09eeax",
    "toWorkspaceIcon": "<string>",
    "toWorkspaceName": "<string>",
    "toWorkspaceTag": "tesla",
    "withdrawTransactionId": "altfrg6powi52w53sd7ts8vf"
  },
  "params": {},
  "warning": {
    "message": "<string>",
    "code": "<string>"
  }
}

{
  "error": "bad-request",
  "message": "<string>"
}

{
  "error": "forbidden",
  "message": "<string>"
}

{
  "error": "conflict",
  "message": "<string>"
}