预兑换请求

选择完币对，点击兑换时，如果是 BRC20，需要先请求预兑换接口

获取psbt方式兑换tx大小

post

Header parameters

Authorizationstringoptional

token

User-Idstringoptional

Body

send_coin_typestringrequired

send_tickstringrequired

send_amountstringrequired

receive_coin_typestringrequired

receive_tickstringrequired

receive_amountstringrequired

addressstringrequired

slipperstringrequired

fee_rateintegerrequired

insstring[]required

用brc20兑换的时候才需要输入

methodstringrequired

非跨池swap,跨池pools_swap, 只需传pools_swap即可

Responses

application/json

objectoptional

application/json

post

HTTPcURLJavaScriptPython

POST /brc20swap/get_swap_psbt_txsize HTTP/1.1
Host: 
Content-Type: application/json
Accept: */*
Content-Length: 216

{
  "send_coin_type": "text",
  "send_tick": "text",
  "send_amount": "text",
  "receive_coin_type": "text",
  "receive_tick": "text",
  "receive_amount": "text",
  "address": "text",
  "slipper": "text",
  "fee_rate": 1,
  "ins": [
    "text"
  ],
  "method": "text"
}

{
  "code": 1,
  "msg": "text",
  "data": {
    "tx_size": 1,
    "ins_contain_sats": 1,
    "checksum": "text",
    "vins": [
      "text"
    ],
    "usr_cnt": 1
  }
}

1、这个接口中的 address，btc_address 传同一个地址即可

2、这个接口返回的结果，原值传到 get_swap_psbt 接口

3、注意当前 slipper （滑点）的限制为，不超过 12%