cosign.eth_refund_htlc

workflowcross-chain-swap·step 7 of 7Workflow: cross-chain-swap · step 7 of 7

cosign.eth_refund_htlc "htlc_address" "swap_id" "signing_key" ( gas_limit max_fee_gwei max_priority_fee_gwei ) Refund locked HTLC funds after timelock expiry. Arguments: 1. htlc_address (string, required) HTLC contract address 2. swap_id (string, required) 32-byte swap ID (hex) 3. signing_key (string, required) 32-byte private key (hex) 4. gas_limit (numeric, optional) Gas limit (default 100000) 5. max_fee_gwei (numeric, optional) Max fee in gwei (default 50) 6. max_priority_fee_gwei (numeric, optional) Max priority fee in gwei (default 2) Result: { (json object) "success" : true|false, (boolean) Whether broadcast succeeded "tx_hash" : "str", (string) Transaction hash "from" : "str" (string) Sender address } Examples: > bitcoin-cli cosign.eth_refund_htlc "0xHTLC" "0xSWAPID" "0xKEY"

Signature

cosign.eth_refund_htlc(htlc_address: string, swap_id: string, signing_key: string, gas_limit?: number, max_fee_gwei?: number, max_priority_fee_gwei?: number) → any

Code samples

curl --user "$RPC_USER:$RPC_PASS" \
  --data-binary '{"jsonrpc":"1.0","id":"docs","method":"cosign.eth_refund_htlc","params":["\"<htlc_address>\"","\"<swap_id>\"","\"<signing_key>\"",0,0,0]}' \
  -H 'content-type: text/plain;' \
  http://127.0.0.1:8332/

bitcoin-cli cosign.eth_refund_htlc "0xHTLC" "0xSWAPID" "0xKEY"

import requests
r = requests.post(
    "http://127.0.0.1:8332/",
    auth=("$RPC_USER", "$RPC_PASS"),
    json={
        "jsonrpc": "1.0",
        "id": "docs",
        "method": "cosign.eth_refund_htlc",
        "params": ["\"<htlc_address>\"", "\"<swap_id>\"", "\"<signing_key>\"", 0, 0, 0],
    },
    timeout=30,
)
print(r.json())

const res = await fetch("http://127.0.0.1:8332/", {
  method: "POST",
  headers: {
    "content-type": "application/json",
    "authorization": "Basic " + btoa(`${process.env.RPC_USER}:${process.env.RPC_PASS}`),
  },
  body: JSON.stringify({
    jsonrpc: "1.0",
    id: "docs",
    method: "cosign.eth_refund_htlc",
    params: ["\"<htlc_address>\"","\"<swap_id>\"","\"<signing_key>\"",0,0,0],
  }),
});
console.log(await res.json());

Parameters

Name	Type	Req.	Description
htlc_address	`string`	yes	HTLC contract address
swap_id	`string`	yes	32-byte swap ID (hex)
signing_key	`string`	yes	32-byte private key (hex)
gas_limit	`number`	—	Gas limit (default 100000)
max_fee_gwei	`number`	—	Max fee in gwei (default 50)
max_priority_fee_gwei	`number`	—	Max priority fee in gwei (default 2)

Result

Type: any

{ (json object) "success" : true|false, (boolean) Whether broadcast succeeded "tx_hash" : "str", (string) Transaction hash "from" : "str" (string) Sender address }

Source: services/core-node/bcore/src/rpc/cosign.cpp:3466

C++ symbol: cosign_eth_refund_htlc

Code samples

curl --user "$RPC_USER:$RPC_PASS" \
  --data-binary '{"jsonrpc":"1.0","id":"docs","method":"cosign.eth_refund_htlc","params":["\"<htlc_address>\"","\"<swap_id>\"","\"<signing_key>\"",0,0,0]}' \
  -H 'content-type: text/plain;' \
  http://127.0.0.1:8332/

bitcoin-cli cosign.eth_refund_htlc "0xHTLC" "0xSWAPID" "0xKEY"

import requests
r = requests.post(
    "http://127.0.0.1:8332/",
    auth=("$RPC_USER", "$RPC_PASS"),
    json={
        "jsonrpc": "1.0",
        "id": "docs",
        "method": "cosign.eth_refund_htlc",
        "params": ["\"<htlc_address>\"", "\"<swap_id>\"", "\"<signing_key>\"", 0, 0, 0],
    },
    timeout=30,
)
print(r.json())

const res = await fetch("http://127.0.0.1:8332/", {
  method: "POST",
  headers: {
    "content-type": "application/json",
    "authorization": "Basic " + btoa(`${process.env.RPC_USER}:${process.env.RPC_PASS}`),
  },
  body: JSON.stringify({
    jsonrpc: "1.0",
    id: "docs",
    method: "cosign.eth_refund_htlc",
    params: ["\"<htlc_address>\"","\"<swap_id>\"","\"<signing_key>\"",0,0,0],
  }),
});
console.log(await res.json());