获取兑换待签名 PSBT

获取待签名 PSBT（ARC20）

如果是 ARC20，不需要预请求，直接获取待签名 PSBT。

POST/brc20swap/get_swap_psbt2

请求参数

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;
}

测试参数

{
    "receive_amount": "951",
    "receive_coin_type": "arc20",
    "receive_tick": "yuqi",
    "send_amount": "10000",
    "send_coin_type": "btc",
    "send_tick": "BTC",
    "slipper": 9,
    "fee_rate": 11,
    "user_public_key": "036d9bb5a5cbf1cfb46c6ec79832a53b4f8717751485abb141ba6d595393200ace:036d9bb5a5cbf1cfb46c6ec79832a53b4f8717751485abb141ba6d595393200ace",
    "address": "tb1qlphav0389832xt8deme0hx2unvw3cjt7fsfuyx",
    "btc_address": "tb1qlphav0389832xt8deme0hx2unvw3cjt7fsfuyx"
}

cURL示例

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/122.0.0.0 Safari/537.36' \
  -H 'sec-ch-ua: "Chromium";v="122", "Not(A:Brand";v="24", "Google Chrome";v="122"' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'sec-ch-ua-platform: "macOS"' \
  --data-raw '{"receive_amount":"951","receive_coin_type":"arc20","receive_tick":"yuqi","send_amount":"10000","send_coin_type":"btc","send_tick":"BTC","slipper":9,"fee_rate":11,"user_public_key":"036d9bb5a5cbf1cfb46c6ec79832a53b4f8717751485abb141ba6d595393200ace:036d9bb5a5cbf1cfb46c6ec79832a53b4f8717751485abb141ba6d595393200ace","address":"tb1qlphav0389832xt8deme0hx2unvw3cjt7fsfuyx","btc_address":"tb1qlphav0389832xt8deme0hx2unvw3cjt7fsfuyx"}'

1、获取到待签名 PSBT 之后，用户必须在 30 秒内签名

2、btc_address 和 address 传同一个地址即可

3、user_public_key 传参方法为只有一个地址的钱包 public_key:public_key，有两个地址的钱包 btc_public_key:ordi_public_key

4、和 BRC20 相比，不需要预请求

5、BTC 换 ARC20，兑换的 ARC20 数量+用户钱包内 ARC20 不得低于 546

6、ARC20 换 BTC，兑换后该用户钱包内该代币剩余数量不得低于 546