Taker Events

taker_eventsstructurestaker_events

The atomic swap process goes through a series of steps to perform and confirm transactions, then release funds accordingly. If a swap fails, the taker payment will be returned to the taker’s address (minus network transaction fees). Sometimes failed swaps were due to a taker or maker going offline in the middle of a swap, so Swap Watcher seednodes were created to process certain events on behalf of the maker/taker.

Swap watchers act to complete a swap or refund if one or both sides go offline for too long. This is done in a non-custodial manner, and funds are still governed by HTLC which can only be released to either the maker or the taker’s address, and only after specific conditions are met, such as completion on the side that is online and/or a timeout.

Takers send all the necessary information to watch the swap on taker/maker chains together with two signed transactions to watchers: one to spend the maker payment (maker payment spend) and the other to refund the taker payment (taker payment refund). If the maker proceeds with the swap and spends the taker payment (and therefore exposes the secret), and the taker doesn’t respond for a duration, the watcher sends the maker payment spend transaction to the chain on behalf of the taker (after appending the secret to the redeem script). If the taker sends the taker payment but the maker doesn’t spend it, and the taker doesn’t send the refund transaction for a duration, then the watchers complete the process by sending the taker payment refund transaction to the chain.

Taker Success Events

Click on an Event below to view its structure:

Taker Error Events

Click on an Event below to view its structure:

StartFailed
NegotiateFailed
TakerFeeSendFailed
MakerPaymentValidateFailed
MakerPaymentWaitConfirmFailed
TakerPaymentTransactionFailed
TakerPaymentWaitConfirmFailed
TakerPaymentDataSendFailed
TakerPaymentWaitForSpendFailed
MakerPaymentSpendConfirmFailed
MakerPaymentSpendFailed
TakerPaymentWaitRefundStarted
TakerPaymentRefundStarted
TakerPaymentRefunded
TakerPaymentRefundedByWatcher
TakerPaymentRefundFailed

TakerPaymentRefundFinished

Started

The Started event indicates that mandatory pre-checks, such as “available balance,” passed and the swap started successfully.

The swap goes to negotiation stage after this event occurs.

Parameter	Type	Required	Description
taker_coin	string	✓	the ticker of the taker coin
maker_coin	string	✓	the ticker of the maker coin
maker	string (hexadecimal)	✓	the p2p ID of maker node
lock_duration	number (integer)	✓	the lock duration of swap payments in seconds. The sender can refund the transaction when the lock duration is passed. The taker payment is locked for the lock duration. The maker payment is locked for lock duration * 2
maker_amount	string (numeric)	✓	the amount of coins to be swapped by maker
taker_amount	string (numeric)	✓	the amount of coins to be swapped by taker
maker_payment_confirmations	number (integer)	✓	the required number of blockchain confirmations for maker payment
maker_payment_requires_nota	bool	–	whether dPoW notarization is required for maker payment; can be null; available since `beta-2.0.1738`
taker_payment_confirmations	number (integer)	✓	the required number of blockchain confirmations for taker payment
taker_payment_requires_nota	bool	–	whether dPoW notarization is required for taker payment; can be null; available since `beta-2.0.1738`
taker_payment_lock	number (UTC timestamp in seconds)	✓	the taker payment is locked until this timestamp
uuid	string	✓	the swap uuid
started_at	number (UTC timestamp in seconds)	✓	the timestamp at the start of the swap
maker_coin_start_block	number (integer)	✓	the maker coin block number at the start of the swap
taker_coin_start_block	number (integer)	✓	the taker coin block number at the start of the swap

Show Event

{
  "type": "Started",
  "data": {
    "taker_coin": "MARTY",
    "maker_coin": "DOC",
    "maker": "7310a8fb9fd8f198a1a21db830252ad681fccda580ed4101f3f6bfb98b34fab5",
    "my_persistent_pub": "03d8064eece4fa5c0f8dc0267f68cee9bdd527f9e88f3594a323428718c391ecc2",
    "lock_duration": 7800,
    "maker_amount": "1",
    "taker_amount": "1",
    "maker_payment_confirmations": 1,
    "maker_payment_requires_nota": false,
    "taker_payment_confirmations": 0,
    "taker_payment_requires_nota": false,
    "taker_payment_lock": 1674809878,
    "uuid": "0d72c435-821e-4278-b2a7-e36ab1ba8cb7",
    "started_at": 1674802078,
    "maker_payment_wait": 1674805198,
    "maker_coin_start_block": 1800637,
    "taker_coin_start_block": 1813161,
    "fee_to_send_taker_fee": {
      "coin": "MARTY",
      "amount": "0.00001",
      "paid_from_trading_vol": false
    },
    "taker_payment_trade_fee": {
      "coin": "MARTY",
      "amount": "0.00002",
      "paid_from_trading_vol": false
    },
    "maker_payment_spend_trade_fee": {
      "coin": "DOC",
      "amount": "0.00001",
      "paid_from_trading_vol": true
    },
    "maker_coin_htlc_pubkey": "03d8064eece4fa5c0f8dc0267f68cee9bdd527f9e88f3594a323428718c391ecc2",
    "taker_coin_htlc_pubkey": "03d8064eece4fa5c0f8dc0267f68cee9bdd527f9e88f3594a323428718c391ecc2",
    "p2p_privkey": null
  }
}

StartFailed

The StartFailed event indicates that some of the pre-checks did not pass, and therefore the swap did not start.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "event" : {
    "data" : {
        "error" : "taker_swap:1046] !check_balance_for_taker_swap check_balance:75] Not enough KMD for swap: available 0.3496745089721220796661853315043096525096525096525096525096525096525096525096525096525096525096525097, required at least 0.6137602122212132901392050798062833976833976833976833976833976833976833976833976833976833976833976834, locked by swaps Some(BigDecimal(\"0.6135335210278779203338146684956903474903474903474903474903474903474903474903474903474903474903474903\"))"
    },
    "type" : "StartFailed"
  },
  "timestamp" : 1730115434533
}

Negotiated

The Negotiated event indicates that taker has received and validated swap negotiation data from maker.

Taker generates taker fee transaction after this event occurs.

Parameter	Type	Required	Description
maker_payment_locktime	number (UTC timestamp in seconds)	✓	the maker payment is locked until this timestamp
maker_pubkey	string (hexadecimal)	✓	a persistent secp256k1 public key of maker node

Show Event

{
  "type": "Negotiated",
  "data": {
    "maker_payment_locktime": 1639000040,
    "maker_pubkey": "0315d9c51c657ab1be4ae9d3ab6e76a619d3bccfe830d5363fa168424c0d044732",
    "secret_hash": "4da9e7080175e8e10842e0e161b33cd298cab30b",
    "maker_coin_swap_contract_addr": null,
    "taker_coin_swap_contract_addr": null
  }
}

NegotiateFailed

The NegotiateFailed event indicates that maker negotiation data was not received or did not pass validation.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "data": {
    "error": "taker_swap:547] \"taker_swap:543] timeout (180.0 > 180.0)\""
  },
  "type": "NegotiateFailed"
}

TakerFeeSent

The TakerFeeSent event indicates that taker has broadcast the dex fee transaction.

Taker starts waiting for maker payment after this event occurs.

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
  "type": "TakerFeeSent",
  "data": {
    "tx_hex": "0400008085202f8901f425fbefe21f33ccb7b487df251191b27dfa7b639b04f60e5493c7ea41dbf149000000006b483045022100d5ec3e542175479bd4bd011e19b76a75e99f19cc49867e5bca9541950322c33a02207a4d1ffd674fb9760de79bb4929af44d66344b5e182de3c377186deebf6bf376012103ad6f89abc2e5beaa8a3ac28e22170659b3209fe2ddf439681b4b8f31508c36faffffffff02bcf60100000000001976a914ca1e04745e8ca0c60d8c5881531d51bec470743f88ac5ce6f305000000001976a914d55f0df6cb82630ad21a4e6049522a6f2b6c9d4588ac7c152160000000000000000000000000000000",
    "tx_hash": "75323ab7acd64bd35242611fabaec560d9acf2e1f9ca28d3a4aba47a79fb49c4"
  }
}

TakerFeeSendFailed

The TakerFeeSendFailed event indicates that the taker dex fee transaction failed to broadcast to the taker coin blockchain, or that the taker failed to send the transaction data to maker.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
    "event" : {
      "data" : {
          "error" : "taker_swap:1267] Timeout 1730514773 > 1730514206"
      },
      "type" : "TakerFeeSendFailed"
    },
    "timestamp" : 1730514773992
}

TakerPaymentInstructionsReceived

The TakerPaymentInstructionsReceived event indicates that the taker has received payment instructions.

This event does not have additional data.

Show Event

{
  "type": "TakerPaymentInstructionsReceived",
  "data": null
}

MakerPaymentValidateFailed

The MakerPaymentValidateFailed event indicates that taker was not able to receive or validate the maker payment transaction.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "event" : {
    "data" : {
        "error" : "taker_swap:1366] Error waiting for 'maker-payment' data: lp_swap:411] Timeout (691 > 690)"
    },
    "type" : "MakerPaymentValidateFailed"
  },
  "timestamp" : 1730606274716
}

MakerPaymentReceived

The MakerPaymentReceived event indicates that taker received the maker payment transaction data.

Taker starts waiting for transaction confirmation after this event occurs.

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
  "type": "MakerPaymentReceived",
  "data": {
    "tx_hex": "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",
    "tx_hash": "27dafe553246553d54f909fbbded80e6d490fdb95ca7b6807d73eca45f0d7a22"
  }
}

MakerPaymentWaitConfirmStarted

The MakerPaymentWaitConfirmStarted event indicates that taker started waiting for maker payment confirmation.

This event does not have additional data.

MakerPaymentWaitConfirmFailed

The MakerPaymentWaitConfirmFailed event indicates that the maker payment transaction did not reach the required number of confirmations before the internal timeout expiration.

Taker swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "type": "MakerPaymentWaitConfirmStarted"
}

MakerPaymentValidatedAndConfirmed

The MakerPaymentValidatedAndConfirmed event indicates that taker validated maker payment and the payment was confirmed the required number of times.

Taker sends his payment after this event occurs.

This event does not have additional data.

Show Event

{
  "type": "MakerPaymentValidatedAndConfirmed"
}

TakerPaymentSent

The TakerPaymentSent event indicates that taker broadcast taker payment transaction to taker coin blockchain.

Taker starts waiting for maker to spend this transaction.

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
  "data": {
    "tx_hash": "95926ab204049edeadb370c17a1168d9d79ee5747d8d832f73cfddf1c74f3961",
    "tx_hex": "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"
  },
  "type": "TakerPaymentSent"
}

TakerPaymentTransactionFailed

The TakerPaymentTransactionFailed event indicates that taker failed to broadcast transaction to taker coin blockchain.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "event" : {
    "data" : {
        "error" : "taker_swap:1561] mm2src\\coins\\utxo.rs:1804] utxo_common:4737] rpc_clients:2314] Rpc(ResponseParseError(JsonRpcError { client_info: \"coin: LBC-segwit\", request: JsonRpcRequest { jsonrpc: \"2.0\", id: \"342199\", method: \"blockchain.transaction.broadcast\", params: [String(\"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\")] }, error: Response(electrum2.cipig.net:20067, Object({\"code\": Number(1), \"message\": String(\"the transaction was rejected by network rules.\\n\\ntoo-long-mempool-chain, too many unconfirmed ancestors [limit: 25] (code 64)\\n[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]\")})) }))"
    },
    "type" : "TakerPaymentTransactionFailed"
  },
  "timestamp" : 1728200816018
}

TakerPaymentWaitConfirmFailed

The TakerPaymentWaitConfirmFailed event indicates that the taker payment transaction did not reach the required number of confirmations before the internal timeout expiration.

When this event occurs taker starts waiting for taker payment lock time expiration to issue a refund.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "event" : {
    "data" : {
        "error" : "taker_swap:1698] !taker_coin.wait_for_confirmations: rpc_clients:158] Waited too long until 1730187904 for transaction ce94a6369e32d88fc7ec6feb3dce61cf953cb8f5647615f95faae7660b758695 to be confirmed 2 times"
    },
    "type" : "TakerPaymentWaitConfirmFailed"
  },
  "timestamp" : 1730187907451
}

TakerPaymentDataSendFailed

The TakerPaymentDataSendFailed event indicates that taker was not able to send his payment data to maker due to a network error.

When this event occurs taker starts waiting for taker payment lock time expiration to issue a refund.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "event" : {
    "data" : {
        "error" : "taker_swap:1698] !taker_coin.wait_for_confirmations: rpc_clients:158] Waited too long until 1730187904 for data to be sent"
    },
    "type" : "TakerPaymentDataSendFailed"
  },
  "timestamp" : 1730187907451
}

TakerPaymentSpent

The TakerPaymentSpent event indicates that maker spent taker payment and taker discovered the transaction.

When this event occurs taker extracts the secret from the transaction and attempts to spend maker payment.

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
  "data": {
    "secret": "fb968d5460399f20ffd09906dc8f65c21fbb5cb8077a8e6d7126d0526586ca96",
    "transaction": {
      "tx_hash": "68f5ec617bd9a4a24d7af0ce9762d87f7baadc13a66739fd4a2575630ecc1827",
      "tx_hex": "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"
    }
  },
  "type": "TakerPaymentSpent"
}

TakerPaymentWaitForSpendFailed

The TakerPaymentWaitForSpendFailed event indicates that maker did not spend taker payment before lock time expiration.

When this event occurs taker attempts to refund the payment.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
    "event" : {
      "data" : {
          "error" : "utxo_common:2961] Waited too long until 1730570284 for transaction Transaction { version: 4, n_time: None, overwintered: true, version_group_id: 2301567109, inputs: [TransactionInput { previous_output: OutPoint { hash: 995f9a823455708020289fc21a19f0c8219e144f6c718b528a28d5b8997f0ccb, index: 1 }, script_sig: 483045022100bc4fef170983cd4c6ac9d66258b81d747c82c4fccb752210dac0f768a3bbe665022062713c040d19146b1a4709509f78d0301f34e40b5ab725d3494dbaed8a813fb5012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: b37f5511b46a3119e240b259db4ac9420ea02b5c7e61cbb5db7c7adccd4ba721, index: 0 }, script_sig: 473044022056ebd3193241b851093a7e1372f63b423d33290c7358d3e20ae511435ba2153b02204fe3f7444200a36b28b004a3fa98310c453ba942d27ad00001489a115d467ecd012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 2019cb34a44f282e79d2a2cac9bb0a63fa89a83760ae5396b993b87fe203b29b, index: 0 }, script_sig: 4730440220290ae0974a2fc451a79a49640b15cc66e6abd34f244ae744f4072867d4979a43022078dcd0c373eb80a5af313daae5fc146b088b6ec364ce1a0be091d3a4ec498abb012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: eb13b2203f1feec79915874bdd5088a69a471dfa5bd54adf7669e3f5576f7152, index: 1 }, script_sig: 483045022100db5e4165da4cc1cbf9ff6de304a5488884e8dcfa277afe90ee51f2ba51296f7a022024a7994d1165293e1e5592b73f9dd5562a50370aa07bce1d46efc8dba35237e1012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: b1ee4fab5793e1e695734fd31fd809831577acc545ebabe5db43d0f13f50f93e, index: 0 }, script_sig: 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483045022100b50c048fcc4663fd11abc5afc9c0b216cff717f7df76a5a5773431db6d09c3cb02204e88bdbdcecc4a33c6fc5550e6a22d7d386db6c00eca49539a9a33a546a70d01012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: f16b745ff33a7d2fadad081a4a72a63ee4547f14f5e316ee8a15ceff02f9d1e8, index: 0 }, script_sig: 483045022100a45fe2dd61c1e645a0193ea4a4aaf7edb422aa688bcf21072687a76bfee102d202201d70b1f274b06376dee61c3d139d2ba784920dd1a7e09195906ad125bafc95e3012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: b8ebd497a0ad4a661ce75521ed4f979956d74d83cbdeabf414f27d6d499bde70, index: 1 }, script_sig: 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483045022100cce515b71823c661f0460e3699b2c28e2307673dee10dee2ceb3860d15ed752b02207706d7b3734367caebbf1b6fbd24276c3b60dfe6023f809f8d4620a0df5a0327012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 1c253d54a5b8e61123262e7aa9aff698dd13e569accb561343eb4311c2276289, index: 1 }, script_sig: 483045022100c1a520421d5821615e6f7e62268764e7b1492dbf41641f93bbf8a78b54d7a9be02201a9fcbe74dcb630a9c83ca31693548837a484e0e0b182190a8b2f8e17fdff0a8012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 050cfa0cf2c188b2e19128c85cff854ce55d3b78a7fee43123e17325e0c703a4, index: 1 }, script_sig: 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4730440220297ab66d200fb1731140a7c863851221a79a4659099213d11ec583f91737c0fe02201cd4f556103e0b7b429062528b356ebd31acc342617dabb770fde58f9c275b5a012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 15d67c858507bf26049cb8f54cefadcca9fb3f8b11ab2533a59e0964db7d52d4, index: 1 }, script_sig: 48304502210087c24b61d1fd22c5e066f7572c4815865b316b3945e681921f9ae98cbfdd91b2022008b24f34e74dc2a6e0bb44641895ddda4e38f3bb151f429264b6879745038b9a012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: afe30eae7d426475d1b7affb6b244639e5b2a5af55822629751a479a6a5e376f, index: 1 }, script_sig: 47304402204543f5bb6b3c2fcfe47a5b32be4a3dbe2b3ec4c7c1e27e27e38a2f738288798c022009ba32e60e1cb23b8c5915b0947236f8516beb78a95ee16c67a5018808de99a5012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: f4ce097a0631da310adc103c407beb4448abca654b063b7dc6ad7fe1748f64d9, index: 1 }, script_sig: 47304402205cdac8f11a7431d7e41ab832e30c25f7998ff7ed6f068874152d1f637bdcd5db02200d6064a797f951322380979410eb2d542070397a3e8af85dbb5d47a8a234904c012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 527f50f42a0208c456cdef75683b8ef36cc179ade1b78609fc4afab32d3aa8fe, index: 1 }, script_sig: 483045022100fc2036e61dffbd115b7c3083edadb5bdf179969367413c5fda3aa64464783c6702206214775b4716eb47c5c51a26eb09875dff4e7908b224154eb3a52dd9d8720c5e012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 851b1efeb96226204f16b25e2a9766680f354707baef61fe794bb3c932390817, index: 0 }, script_sig: 47304402206af93dcd589faea3b3701d4db98c79a32daec3bd62302d5746ddb43e4dc4d69d022053a547475e55637b8e0c75bab573e12ff79ffd8ca2f4dfe805864018669ffae3012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 9125c21285c8158e795681858e48e32755f7b6e29effd562fb5347cfc1e925a0, index: 1 }, script_sig: 483045022100910db47b62c3123d06fc435baf483e8daf3f706de4a95b81cff760cd1bb1a960022035b08fe7bf8ddaab82af9128c17fcf815f1afaa59f9fb6ae144337df8ba7186c012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 5138f89e2fc502490b5d3857e8cc81cacb7ac6c6047a3228311fbd91583b5600, index: 1 }, script_sig: 483045022100f0c3d5804b19d88cba234d1d0aeff02771d7d87587f8c3dba98bb88dd6fccbda0220581b878548e4e84ab553a1239b93af02fd279e94af7e865e93b87fc3d3529867012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 0efb0d2a99b4ecddf324cb77c41d41863649d4f8e314e35586869956225464aa, index: 1 }, script_sig: 483045022100ddd387fd4d91053ae00b1af9e6fa3c762fcd4d28881fafb5747d0dbc6fa36854022003e71c3e3205d929a322533307845143a6f8e57c385b1e13470dddace7291376012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: b323e9f6773b029b3bb741b86ae8724a8288e890d6f5ce08b37c5762c73cc80a, index: 1 }, script_sig: 483045022100899ff3533e8857db398cb1e26e80230c5288943598366711d59b940b8d5730fe0220747e23785e03e496c11edf482f4e2509fc169caafa4af3be59c67b3c0b002032012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 8c982935afcc6e4ee540541b54a0898920b252863e2bb2addf302b8904f4cdd8, index: 1 }, script_sig: 473044022033d86be42486c9f1021e6311ab767e878edd39b1ebe18e98eca598fbb80dca6b0220225449d70ff8a3442ea2bacccbb946e12e3291ed17ef7058d35fc2c62675e7a8012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: e5395bd55dc3cba43e9360dcf07ef611e9c45270107ddfd83143a853cafeb7bd, index: 1 }, script_sig: 483045022100fb5e5e12f9d273ffe63a37452f4f00716ce20f8dd3039d0813e7d6a922f53dff02202f290d6b2555dc4e3f7d22bc47da847fcbf537988debaf713f968563f8803f61012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 0d10992cc9310e839fb281158b33312e284c2ec8341921dc3b868d2ab1d7d1aa, index: 0 }, script_sig: 483045022100a1b9e276838711aab3f3a73d408ffaa07444f8da1172cd72e03dad427cfbf05e022044340bd3e5f7e5278d18869c10dc8d6dc50f6b4dc8beb3c751eca5e5447a2496012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 6df719ab4082d2d713af9c8b7cd0db6e4a81fa7750805cd1db2f6c7156545641, index: 1 }, script_sig: 483045022100f15c9d892f3e2fc1e7f5a2892d14e155c739b82d497c6dfade1246dc885c077d022070424516e2616f78b5a2e6f9fd352731ebf1dde58a156e03ca19da1212c790c5012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }, TransactionInput { previous_output: OutPoint { hash: 68b4cceaae7edccd7a097713f63344d36ab0aaa962883773d5193375b9235d13, index: 1 }, script_sig: 483045022100a433a6ed9204f327b6cc640df2bb10a0b0c048dffe8edabe857403e50470252202203e1ddbb6ca81e8436ac100284306c5529f87f2830c7b97604c39f10eec610a8e012103dfc0392064af0be9a9019b17b3960d37e35872372ca64c8c63c3b3fdd6c017cb, sequence: 4294967295, script_witness: [] }], outputs: [TransactionOutput { value: 378011018892, script_pubkey: a91447c202f68ab926a761bf74fd68c4fb8d3e1d763087 }, TransactionOutput { value: 0, script_pubkey: 6a146c141f5e1bdee6f8c64aba0c7b91c359b3be8d38 }, TransactionOutput { value: 48302426, script_pubkey: 76a914ec73fcb5923e5be096d02b483171761fbba00c2388ac }], lock_time: 1730540877, expiry_height: 0, shielded_spends: [], shielded_outputs: [], join_splits: [], value_balance: 0, join_split_pubkey: 0000000000000000000000000000000000000000000000000000000000000000, join_split_sig: 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, binding_sig: 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zcash: true, posv: false, str_d_zeel: None, tx_hash_algo: DSHA256 } 0 to be spent "
      },
      "type" : "TakerPaymentWaitForSpendFailed"
    },
    "timestamp" : 1730570286779
}

MakerPaymentSpendFailed

The MakerPaymentSpendFailed event indicates that taker failed to broadcast maker payment spend transaction to the maker coin blockchain.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "data": {
    "error": "taker_swap:798] utxo:950] utxo:950] error"
  },
  "type": "MakerPaymentSpendFailed"
}

MakerPaymentSpent

The MakerPaymentSpent event indicates that taker spent maker payment.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
  "type": "MakerPaymentSpent",
  "data": {
    "tx_hex": "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",
    "tx_hash": "02c6bc927712478b866c3303cfdfacb868545a6730513605d4d7b5b2dbe97b09"
  }
}

MakerPaymentSpendConfirmed

The MakerPaymentSpendConfirmed event indicates that the broadcasted tx for taker spending maker payment was not reverted.

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
  "type" : "MakerPaymentSpendConfirmed",
  "data" : {
    "tx_hash" : "a2513faf3d479b8e14096be9b0ba8977d669a7a9ca722be0e2bbe3833fa51a4e",
    "tx_hex" : "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"
  }
}

MakerPaymentSpendConfirmFailed

The MakerPaymentSpendConfirmFailed event indicates that the broadcasted tx for taker spending maker payment was not reverted.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "event" : {
    "data" : {
        "error" : "Maker payment spend confirm failed..."
    },
    "type" : "MakerPaymentSpendConfirmFailed"
  },
  "timestamp" : 1727678432853
}

MakerPaymentSpentByWatcher

The MakerPaymentSpentByWatcher event indicates that the maker payment has been released to the taker while the taker was offline.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
  "type" : "MakerPaymentSpentByWatcher",
  "data" : {
    "tx_hash" : "a2513faf3d479b8e14096be9b0ba8977d669a7a9ca722be0e2bbe3833fa51a4e",
    "tx_hex" : "0400008085202f8901d331b98aec95c8ed36484398b7bdec98858d5efae3ac0eb8be4cb39ef016e0fd00000000d7473044022049a5831a2ef057c5a119b19a694dc653e37a1a8b0122125132aecd5dd47312ff02206672c43113830247623f508ee49ba2db15732c22d8f2fec3c8acfc1f19b84654012017456a9b1b3817b612737c929a731e241a28147fc0530e876f9f79e34abd86f7004c6b630457f7ec64b17521031bb83b58ec130e28e0a6d5d2acf2eb01b0d3f1670e021d47d31db8a858219da8ac6782012088a914c1eae4df923e04a343030902472e70664a525e6d8821023c5ba1d7ef6fa015eb33defb3aba2a961898a51bbb7ff30344d07ba75ad3f289ac6782012088a914e8eeeea9c6e8988f1ace7bb5b0222efd9fc9d2ed882103081f37ad0ab55bcbd8e2f45e6a364ebf88f727f80c14e7a4f083e9d6555afee7ac68feffffff01b2530000000000001976a91484c74592ed8ac05340906784d277ca4d4e0af08e88ac57f7ec64000000000000000000000000000000"
  }
}

TakerPaymentWaitRefundStarted

TakerPaymentWaitRefundStarted event indicates that taker started waiting for lock time expiration to refund the payment.

Parameter	Type	Required	Description
wait_until	number (UTC timestamp)	✓	the timestamp at which a refund will occur

Show Event

{
  "event" : {
    "data" : {
        "wait_until" : 1695668176
    },
    "type" : "TakerPaymentWaitRefundStarted"
  },
  "timestamp" : 1695664482303
}

TakerPaymentRefundStarted

TakerPaymentRefundStarted event indicates that taker was has initiated the refund process.

Show Event

{
  "event" : {
    "type" : "TakerPaymentRefundStarted"
  },
  "timestamp" : 1695664482305
}

TakerPaymentRefundedByWatcher

The TakerPaymentRefundedByWatcher is fired if the watcher refunded the taker payment for the taker while the taker is offline. It will be shown in the swap status when the taker runs the defi framework again after being offline (if the watcher refunded the swap during the time the taker was offline).

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
  "event" : {
    "data" : {
        "tx_hash" : "f7c0bf10cee27c39bf84e77de88bbe734fe28487cc4cd8fe567082abefc8f6cd",
        "tx_hex" : "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"
    },
    "type" : "TakerPaymentRefundedByWatcher"
  },
  "timestamp" : 1690992836496
}

TakerPaymentRefundFailed

TakerPaymentRefundFailed event indicates that taker was not able to broadcast a refund transaction to taker coin blockchain. The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
error	string	✓	error description with stack trace

Show Event

{
  "event" : {
    "data" : {
        "error" : "taker_swap:1918] \"mm2src/coins/utxo/utxo_common.rs:1907] rpc_clients:2314] ResponseParseError(JsonRpcError { client_info: \\\"coin: ZEC\\\", request: JsonRpcRequest { jsonrpc: \\\"2.0\\\", id: \\\"2572\\\", method: \\\"blockchain.transaction.broadcast\\\", params: [String(\\\"0400008085202f8901274b68c78f9ab689f6efbdc1678bb3a3cb2f2e6dd685fe5bd10bee660a28de4400000000b647304402201c4176381ef6375a0e12a54d22f317613ce7a41ac61f963f7adce54a9247e0c30220292c37ff88742bc42317539f4c2a903424accd55a6d0c5c9499da1344eb8d39a01514c6b63043b45fa66b17521023c5ba1d7ef6fa015eb33defb3aba2a961898a51bbb7ff30344d07ba75ad3f289ac6782012088a914eab6c44aa1fb5607f3a115644fa3d2892905119c882102f70d90df545d767a53daa25e07875b4b588c476cba465a28dcafc4b6b792cf94ac68feffffff01e84e2300000000001976a91484c74592ed8ac05340906784d277ca4d4e0af08e88ac6f45fa66000000000000000000000000000000\\\")] }, error: Response(electrum1.cipig.net:20058, Object({\\\"code\\\": Number(1), \\\"message\\\": String(\\\"the transaction was rejected by network rules.\\\\n\\\\nMissing inputs\\\\n[0400008085202f8901274b68c78f9ab689f6efbdc1678bb3a3cb2f2e6dd685fe5bd10bee660a28de4400000000b647304402201c4176381ef6375a0e12a54d22f317613ce7a41ac61f963f7adce54a9247e0c30220292c37ff88742bc42317539f4c2a903424accd55a6d0c5c9499da1344eb8d39a01514c6b63043b45fa66b17521023c5ba1d7ef6fa015eb33defb3aba2a961898a51bbb7ff30344d07ba75ad3f289ac6782012088a914eab6c44aa1fb5607f3a115644fa3d2892905119c882102f70d90df545d767a53daa25e07875b4b588c476cba465a28dcafc4b6b792cf94ac68feffffff01e84e2300000000001976a91484c74592ed8ac05340906784d277ca4d4e0af08e88ac6f45fa66000000000000000000000000000000]\\\")})) })\""
    },
    "type" : "TakerPaymentRefundFailed"
  },
  "timestamp" : 1727678432853
}

TakerPaymentRefunded

The TakerPaymentRefunded event indicates that taker broadcast the taker payment refund transaction.

The swap finishes immediately when this event occurs.

Parameter	Type	Required	Description
tx_hash	string	✓	the hash of the transaction
tx_hex	string	✓	transaction bytes in hexadecimal format

Show Event

{
    "event" : {
      "data" : {
          "tx_hash" : "6942bca7b871e196cda1f8eb1da9b0678b3f2baa45f9023bc116c2dae085a8a8",
          "tx_hex" : "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"
      },
      "type" : "TakerPaymentRefunded"
    },
    "timestamp" : 1695666921166
}

TakerPaymentRefundFinished

The TakerPaymentRefundFinished event indicates that taker refund process is complete.

The swap finishes immediately when this event occurs. This event does not have additional data.

Show Event

{
  "event" : {
    "type" : "TakerPaymentRefundFinished"
  },
  "timestamp" : 1695666921167
}

Finished

The Finished event indicates that the swap finished.

This event does not have additional data.

Taker Events#

taker_eventsstructurestaker_events#

Taker Success Events#

Taker Error Events#

Started#

StartFailed#

Negotiated#

NegotiateFailed#

TakerFeeSent#

TakerFeeSendFailed#

TakerPaymentInstructionsReceived#

MakerPaymentValidateFailed#

MakerPaymentReceived#

MakerPaymentWaitConfirmStarted#

MakerPaymentWaitConfirmFailed#

MakerPaymentValidatedAndConfirmed#

TakerPaymentSent#

TakerPaymentTransactionFailed#

TakerPaymentWaitConfirmFailed#

TakerPaymentDataSendFailed#

TakerPaymentSpent#

TakerPaymentWaitForSpendFailed#

MakerPaymentSpendFailed#

MakerPaymentSpent#

MakerPaymentSpendConfirmed#

MakerPaymentSpendConfirmFailed#

MakerPaymentSpentByWatcher#

TakerPaymentWaitRefundStarted#

TakerPaymentRefundStarted#

TakerPaymentRefundedByWatcher#

TakerPaymentRefundFailed#

TakerPaymentRefunded#

TakerPaymentRefundFinished#

Finished#

Taker Events

taker_eventsstructurestaker_events

Taker Success Events

Taker Error Events

Started

StartFailed

Negotiated

NegotiateFailed

TakerFeeSent

TakerFeeSendFailed

TakerPaymentInstructionsReceived

MakerPaymentValidateFailed

MakerPaymentReceived

MakerPaymentWaitConfirmStarted

MakerPaymentWaitConfirmFailed

MakerPaymentValidatedAndConfirmed

TakerPaymentSent

TakerPaymentTransactionFailed

TakerPaymentWaitConfirmFailed

TakerPaymentDataSendFailed

TakerPaymentSpent

TakerPaymentWaitForSpendFailed

MakerPaymentSpendFailed

MakerPaymentSpent

MakerPaymentSpendConfirmed

MakerPaymentSpendConfirmFailed

MakerPaymentSpentByWatcher

TakerPaymentWaitRefundStarted

TakerPaymentRefundStarted

TakerPaymentRefundedByWatcher

TakerPaymentRefundFailed

TakerPaymentRefunded

TakerPaymentRefundFinished

Finished