POST
/
{custom-url}
curl -X POST \
--url 'https://custom-url/example-callback' \
--data '{
      "type":"sign_start",
      "withdraw_id":321456,
      "request_id":"c70d1eebb7c687ec8d56bead73f104",
      "pending_round":false,
      "from":"0xc70d1eebb7c687ec8d56bead73f104d41e6e0bda",
      "to":"0x5EDc9177997Bf6B4db559A5C184051858B3B3704",
      "memo": "123321",
      "amount":167230.4978,
      "symbol":"BTC"
}'

Co-Signer calls back to the client system to confirm whether the withdrawal is normal before signing.

Content-Type application/json;charset=UTF-8

​
Callback Request Parameters

ParamTypeRequriedDescription
typeStringYesCallback type, sign_startstart signing，sign_successsuccessfully signed.
transfer_idIntegerYestransfer id, example: 12345
request_idStringYesThe unique identifier for initiating transfer
pending_roundBoolYesSpeed Up status, false means in transferring transaction , true means speeding up the transaction
fromStringYesfrom account address
toStringYesto account address
memoStringNoto account address memo，example：123321
amountDecimalYesTransaction amount
symbolStringYesThe unique identifier of the coin, example: USDTERC20
txidStringNoTransaction hash. Returned when the signature is successful.
curl -X POST \
--url 'https://custom-url/example-callback' \
--data '{
      "type":"sign_start",
      "withdraw_id":321456,
      "request_id":"c70d1eebb7c687ec8d56bead73f104",
      "pending_round":false,
      "from":"0xc70d1eebb7c687ec8d56bead73f104d41e6e0bda",
      "to":"0x5EDc9177997Bf6B4db559A5C184051858B3B3704",
      "memo": "123321",
      "amount":167230.4978,
      "symbol":"BTC"
}'

​
Callback Response Parameters

Return string：

  • SUCCESS means SUCCESS: Co-Signer signs the transaction.
  • FAILURE means FAILURE: Co-Signer will ignore the transaction and not sign.

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OverviewWeb3 Transaction Callback