Get Unsigned Swap PSBT

Getting an Unsigned PSBT for Swapping (Runes)

POST/brc20swap/get_swap_psbt2

Parameters

export interface SwapPsbtBody {
  send_coin_type: string;
  send_tick: string;
  send_amount: string;
  receive_coin_type: string;
  receive_tick: string;
  receive_amount: string;
  address: string;
  btc_address: string;
  slipper: string;
  fee_rate: number;
  user_public_key: string;
  token: string; // swap-info拿到的token
}

Request Body

{
    "receive_amount": "0.004",
    "receive_coin_type": "runes",
    "receive_tick": "BEVMRUNESTONET",
    "send_amount": "100000",
    "send_coin_type": "btc",
    "send_tick": "BTC",
    "slipper": 9,
    "fee_rate": 57,
    "ins": [],
    "token": "d7eb91e4f000000:0",
    "user_public_key": "02d3ac7452920b1cc4653516dd4f4381a2df0a8c0aac6e3446e633a73ea63eee81:02d3ac7452920b1cc4653516dd4f4381a2df0a8c0aac6e3446e633a73ea63eee81",
    "address": "tb1qge80xavle7c7k0tk7vceaavwcgpsr3jchl0w3e",
    "btc_address": "tb1qge80xavle7c7k0tk7vceaavwcgpsr3jchl0w3e"
}

cURL Example

curl 'https://test-api-proxy.ddpurse.com/brc20swap/get_swap_psbt2' \
  -H 'Accept: application/json, text/plain, */*' \
  -H 'Accept-Language: en' \
  -H 'Cache-Control: no-cache' \
  -H 'Connection: keep-alive' \
  -H 'Content-Type: application/json' \
  -H 'Origin: http://localhost:56651' \
  -H 'Pragma: no-cache' \
  -H 'Referer: http://localhost:56651/' \
  -H 'Sec-Fetch-Dest: empty' \
  -H 'Sec-Fetch-Mode: cors' \
  -H 'Sec-Fetch-Site: cross-site' \
  -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36' \
  -H 'sec-ch-ua: "Chromium";v="124", "Google Chrome";v="124", "Not-A.Brand";v="99"' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'sec-ch-ua-platform: "macOS"' \
  --data-raw '{"receive_amount":"0.004","receive_coin_type":"runes","receive_tick":"BEVMRUNESTONET","send_amount":"100000","send_coin_type":"btc","send_tick":"BTC","slipper":9,"fee_rate":57,"ins":[],"token":"d7eb91e4f000000:0","user_public_key":"02d3ac7452920b1cc4653516dd4f4381a2df0a8c0aac6e3446e633a73ea63eee81:02d3ac7452920b1cc4653516dd4f4381a2df0a8c0aac6e3446e633a73ea63eee81","address":"tb1qge80xavle7c7k0tk7vceaavwcgpsr3jchl0w3e","btc_address":"tb1qge80xavle7c7k0tk7vceaavwcgpsr3jchl0w3e"}'

Important Notes:

1. After obtaining the unsigned PSBT, the user must sign it within 30 seconds.

2. Use the same address for both btc_address and address.

3. For user_public_key, provide the parameter as public_key:public_key for a wallet with one address, or btc_public_key:ordi_public_key for a wallet with two addresses.

4. The token must be retrieved from the /swap-info endpoint and can only be used once.