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bitcoin-s/docs/wallet/wallet-price-example.md

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2021 10 15 wallet numeric example (#3759) * Implement payout function reader and tlv points reader/writer * Add support for numeric contract infos in the createcontractinfo rpc * Adjust logging level * Remove unused endpoint * Add new format to site * WIP * Add contract info/offer section * Start accept section * Add example to sidebar * Adjust locktimes on the exmaples to 0
2021-10-15 19:57:01 -05:00
---
id: wallet-price-example
title: Wallet Price Example
---
This is a developer example to show to how build a
DLC with `bitcoin-s-cli` utility using the oracle
we built in our [oracle price example](../oracle/oracle-price-example.md)
This example will show you to collaborate with your peer
to create the funding transaction for your DLC.
The last thing we will do is close the DLC by broadcasting
the contract execution transaction (CET) that is valid after
the oracle broadcasts its attestations.
## Requirements for example
You need to have a fully built DLC wallet.
You can follow [this guide](../applications/server.md#building-the-server) to do this.
You will also need a the `bitcoin-s-cli` command line tool to interact with the server.
You can find how to build this [here](../applications/cli.md)
Since bitcoin-s is a self custodial wallet, you will need to either
1. [Connect your server to bitcoind](../getting-setup.md#bitcoind-backend)
2. [Do intial block download (IBD) with blockfilters](../getting-setup.md#neutrino-node). This can take a few hours.
```
./app/server/target/universal/stage/bin/bitcoin-s-server
```
## Betting on bitcoin
New financial markets are being built for bitcoin. Users are interested in financial
products designed to speculate on the price of bitcoin.
#### Oracle
The first thing you need to create a DLC is an oracle that
is attesting to the real world event that you are interested in.
In this case, we will be using the oracle we setup in our
[oracle election example](../oracle/oracle-price-example.md#setting-up-the-btcusd-oracle).
The announcement that this oracle produced is
```
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
```
This announcement contains all the cryptographic information
necessary for you and your counterparty to build a DLC.
#### Contract
The next step for building a DLC is agreeing to a [contract info](https://github.com/discreetlogcontracts/dlcspecs/blob/master/Messaging.md#the-contract_info-type).
A contract info contains information about
1. The oracles that will be used by the DLC
2. The contract payout conditions based on the oracle.
Up until this point all information in this example does
NOT contain any information specific to the bitcoin network.
If the oracle has published their announcement to the
Suredbits oracle explorer, you can build this
[via the contract explorer](https://test.oracle.suredbits.com/event/362ae482860fc93bac5cbcca3f1f0e49b3c94eac92224a008bd81ef81292f43a/contracts/new).
[Here](https://test.oracle.suredbits.com/contract/numeric/d4d4df2892fb2cfd2e8f030f0e69a568e19668b5d355e7713f69853db09a4c33)
is a completed example of what we are going to build via the `bitcoin-s-cli`
Alice has decided that she wants to do a 1 bitcoin bet.
The amount of collateral Alice is going to contribute to the bet
is `50,000` sats.
Bob, Alice's counterparty, has agreed to contribute
`50,000` sats in collateral to the bet.
The next step is to create a `contractinfo` [via the contract explorer hosted by Suredbits](https://test.oracle.suredbits.com/contract/numeric/d4d4df2892fb2cfd2e8f030f0e69a568e19668b5d355e7713f69853db09a4c33)
or locally that represents this bet.
These next instructions are for if you decide to build it locally.
We can do this with the `createcontractinfo` rpc
```
./bitcoin-s-cli createcontractinfo fdd824fd02b9659e890eef1b223ba45c9993f88c7997859302fd5510ac23f4cac0d4ee8232a77ecbdf50c07f093794370e6a506a836f6b0fb54b45f1fb662e1307166d2e57030574f77305826939fa9124d19bfa8a8b2f00f000586b8c58c79ee8b77969a949fdd822fd025300114762c188048a953803f0edeeeb68c69e6cdc1d371ba8d517003accfe05afc4d6588c3ea326512bc66c26a841adffa68330b8c723da442792e731fb19fda94274a7766bb48e520f118c100bbe62dc3806a8d05a63d92e23683a04b0b8c24148cd166585a6b33b995b3d6c083523a8435b156c05100d88f449f4754310d5574d5e88aad09af1b8ba942cfd305e728044ec6360d847254453ec05b1b518a36660e2238360e02f3a004663a7f3a3534973d8b66a2646c1386779aa820672b6361b88a8696395c0add87840b460dfd8a8c0d520017efc6bf58267d4c9d2a225c5d0e5719068a7dda5d630d7432239b6c9d921d5f3842b584503460ca52612ac2e64337d299513690372e8f4770eb8a28080e8d7c29920ca32af470d65d6f916ee81e3ac15ce02684ba6d2522a9ffea1de7e202b4b699ef7ec4f089dda07f3de5b7d1f853b2c56471999be4efca82674a651c80f047ba3a2b9e6f9999f0cd4062c533d1ae29cab2a5e33cbe98728b7b4271c67f7c5cd6e12e39128b9971e08496cbd84cfa99c77c88867d33e73acef37022ba4422a5221776991d45416db71fb54bc6c104f6a8e50e8905161709215104a7e7b97e866f32cf43233ffd615cab66699832ec607cf59c85a7f56fa957aa5f5d7ec9f46d84d5d4b777122d41ad76c6f4968aeedca243f2030d4f502e58f4181130e9afb75309ac21637bcfd0717528bfb82ffe1b6c9fadee6ba70357210990539184bcc913a0ec65837a736733a2fb6172d601b3900fdd80a11000200074254432f55534400000000001117626974636f696e2d732d70726963652d6578616d706c65 \
100000 \
"[{\"outcome\":0,\"payout\":0,\"extraPrecision\":0,\"isEndpoint\":true}, \
{\"outcome\":40000,\"payout\":0,\"extraPrecision\":0,\"isEndpoint\":true}, \
{\"outcome\":42500,\"payout\":50000,\"extraPrecision\":0,\"isEndpoint\":true}, \
{\"outcome\":45000,\"payout\":100000,\"extraPrecision\":0,\"isEndpoint\":true}, \
{\"outcome\":131071,\"payout\":100000,\"extraPrecision\":0,\"isEndpoint\":true}]"
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
```
The `fdd824fd02b96...` is the oracle announcement, the `100000` is the total collateral in the DLC
and the final json datstructure is the points on the payout curve. The x-axis is `outcome`
and the y axis is `payout`.
You can decode this contract info with `decodecontractinfo`
```
./bitcoin-s-cli decodecontractinfo 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
{
"totalCollateral": 100000,
"contractDescriptor": {
"numDigits": 17,
"payoutFunction": {
"points": [
{
"outcome": 0,
"payout": 0,
"extraPrecision": 0,
"isEndpoint": true
},
{
"outcome": 40000,
"payout": 0,
"extraPrecision": 0,
"isEndpoint": true
},
{
"outcome": 42500,
"payout": 50000,
"extraPrecision": 0,
"isEndpoint": true
},
{
"outcome": 45000,
"payout": 100000,
"extraPrecision": 0,
"isEndpoint": true
},
{
"outcome": 131071,
"payout": 100000,
"extraPrecision": 0,
"isEndpoint": true
}
]
},
"roundingIntervals": {
"intervals": []
}
},
"oracleInfo": {
"announcement": {
"announcementSignature": "659e890eef1b223ba45c9993f88c7997859302fd5510ac23f4cac0d4ee8232a77ecbdf50c07f093794370e6a506a836f6b0fb54b45f1fb662e1307166d2e5703",
"publicKey": "0574f77305826939fa9124d19bfa8a8b2f00f000586b8c58c79ee8b77969a949",
"event": {
"nonces": [
"4762c188048a953803f0edeeeb68c69e6cdc1d371ba8d517003accfe05afc4d6",
"588c3ea326512bc66c26a841adffa68330b8c723da442792e731fb19fda94274",
"a7766bb48e520f118c100bbe62dc3806a8d05a63d92e23683a04b0b8c24148cd",
"166585a6b33b995b3d6c083523a8435b156c05100d88f449f4754310d5574d5e",
"88aad09af1b8ba942cfd305e728044ec6360d847254453ec05b1b518a36660e2",
"238360e02f3a004663a7f3a3534973d8b66a2646c1386779aa820672b6361b88",
"a8696395c0add87840b460dfd8a8c0d520017efc6bf58267d4c9d2a225c5d0e5",
"719068a7dda5d630d7432239b6c9d921d5f3842b584503460ca52612ac2e6433",
"7d299513690372e8f4770eb8a28080e8d7c29920ca32af470d65d6f916ee81e3",
"ac15ce02684ba6d2522a9ffea1de7e202b4b699ef7ec4f089dda07f3de5b7d1f",
"853b2c56471999be4efca82674a651c80f047ba3a2b9e6f9999f0cd4062c533d",
"1ae29cab2a5e33cbe98728b7b4271c67f7c5cd6e12e39128b9971e08496cbd84",
"cfa99c77c88867d33e73acef37022ba4422a5221776991d45416db71fb54bc6c",
"104f6a8e50e8905161709215104a7e7b97e866f32cf43233ffd615cab6669983",
"2ec607cf59c85a7f56fa957aa5f5d7ec9f46d84d5d4b777122d41ad76c6f4968",
"aeedca243f2030d4f502e58f4181130e9afb75309ac21637bcfd0717528bfb82",
"ffe1b6c9fadee6ba70357210990539184bcc913a0ec65837a736733a2fb6172d"
],
"maturity": "2021-02-04T00:00:00Z",
"descriptor": {
"base": 2,
"isSigned": false,
"unit": "BTC/USD",
"precision": 0
},
"eventId": "bitcoin-s-price-example"
}
}
}
}
```
### Building funding tx/dlcs with your counterparty
Now that the contract terms are agreed upon, the next thing you need to do is
begin the [negotiation protocol](https://github.com/discreetlogcontracts/dlcspecs/blob/master/Protocol.md#contract-negotiation) with your counterparty.
#### Offer
The first thing you need to send your counterparty is an [`offer`](https://github.com/discreetlogcontracts/dlcspecs/blob/master/Protocol.md#the-offer_dlc-message).
This message contains information about the utxos you will use to fund your side of the funding transaction.
You can create the offer with the `createdlcoffer`. As arguments this rpc takes
1. contract info (what we build last step)
2. your collateral (the amount of money YOU are putting in the DLC)
3. fee rate (sats/vbyte)
4. locktime
5. refund locktime
As of this writing, the current block height is `705161` . For the sake of this example
I'm going to pick a `locktime=0` and a refund locktime 2 weeks in advance `refundLocktime=707177`
Note: this RPC will fail if you don't have enough funds in your wallet to fund your collateral.
```
./bitcoin-s-cli createdlcoffer fdd82efd032500000000000186a0fda720540011fda72648000501000000000000000000000001fd9c400000000000000000000001fda604000000000000c350000001fdafc800000000000186a0000001fe0001ffff00000000000186a00000fda724020000fda712fd02bffdd824fd02b9659e890eef1b223ba45c9993f88c7997859302fd5510ac23f4cac0d4ee8232a77ecbdf50c07f093794370e6a506a836f6b0fb54b45f1fb662e1307166d2e57030574f77305826939fa9124d19bfa8a8b2f00f000586b8c58c79ee8b77969a949fdd822fd025300114762c188048a953803f0edeeeb68c69e6cdc1d371ba8d517003accfe05afc4d6588c3ea326512bc66c26a841adffa68330b8c723da442792e731fb19fda94274a7766bb48e520f118c100bbe62dc3806a8d05a63d92e23683a04b0b8c24148cd166585a6b33b995b3d6c083523a8435b156c05100d88f449f4754310d5574d5e88aad09af1b8ba942cfd305e728044ec6360d847254453ec05b1b518a36660e2238360e02f3a004663a7f3a3534973d8b66a2646c1386779aa820672b6361b88a8696395c0add87840b460dfd8a8c0d520017efc6bf58267d4c9d2a225c5d0e5719068a7dda5d630d7432239b6c9d921d5f3842b584503460ca52612ac2e64337d299513690372e8f4770eb8a28080e8d7c29920ca32af470d65d6f916ee81e3ac15ce02684ba6d2522a9ffea1de7e202b4b699ef7ec4f089dda07f3de5b7d1f853b2c56471999be4efca82674a651c80f047ba3a2b9e6f9999f0cd4062c533d1ae29cab2a5e33cbe98728b7b4271c67f7c5cd6e12e39128b9971e08496cbd84cfa99c77c88867d33e73acef37022ba4422a5221776991d45416db71fb54bc6c104f6a8e50e8905161709215104a7e7b97e866f32cf43233ffd615cab66699832ec607cf59c85a7f56fa957aa5f5d7ec9f46d84d5d4b777122d41ad76c6f4968aeedca243f2030d4f502e58f4181130e9afb75309ac21637bcfd0717528bfb82ffe1b6c9fadee6ba70357210990539184bcc913a0ec65837a736733a2fb6172d601b3900fdd80a11000200074254432f55534400000000001117626974636f696e2d732d70726963652d6578616d706c65 \
50000 \
1 \
0 \
> 707177 \
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
```
You can decode the offer above with `decodeoffer`
```
./bitcoin-s-cli decodeoffer 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
{
"contractFlags": "0",
"chainHash": "6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000",
"contractInfo": {
"totalCollateral": 100000,
"contractDescriptor": {
"numDigits": 17,
"payoutFunction": {
"points": [
{
"outcome": 0,
"payout": 0,
"extraPrecision": 0,
"isEndpoint": true
},
{
"outcome": 40000,
"payout": 0,
"extraPrecision": 0,
"isEndpoint": true
},
{
"outcome": 42500,
"payout": 50000,
"extraPrecision": 0,
"isEndpoint": true
},
{
"outcome": 45000,
"payout": 100000,
"extraPrecision": 0,
"isEndpoint": true
},
{
"outcome": 131071,
"payout": 100000,
"extraPrecision": 0,
"isEndpoint": true
}
]
},
"roundingIntervals": {
"intervals": []
}
},
"oracleInfo": {
"announcement": {
"announcementSignature": "659e890eef1b223ba45c9993f88c7997859302fd5510ac23f4cac0d4ee8232a77ecbdf50c07f093794370e6a506a836f6b0fb54b45f1fb662e1307166d2e5703",
"publicKey": "0574f77305826939fa9124d19bfa8a8b2f00f000586b8c58c79ee8b77969a949",
"event": {
"nonces": [
"4762c188048a953803f0edeeeb68c69e6cdc1d371ba8d517003accfe05afc4d6",
"588c3ea326512bc66c26a841adffa68330b8c723da442792e731fb19fda94274",
"a7766bb48e520f118c100bbe62dc3806a8d05a63d92e23683a04b0b8c24148cd",
"166585a6b33b995b3d6c083523a8435b156c05100d88f449f4754310d5574d5e",
"88aad09af1b8ba942cfd305e728044ec6360d847254453ec05b1b518a36660e2",
"238360e02f3a004663a7f3a3534973d8b66a2646c1386779aa820672b6361b88",
"a8696395c0add87840b460dfd8a8c0d520017efc6bf58267d4c9d2a225c5d0e5",
"719068a7dda5d630d7432239b6c9d921d5f3842b584503460ca52612ac2e6433",
"7d299513690372e8f4770eb8a28080e8d7c29920ca32af470d65d6f916ee81e3",
"ac15ce02684ba6d2522a9ffea1de7e202b4b699ef7ec4f089dda07f3de5b7d1f",
"853b2c56471999be4efca82674a651c80f047ba3a2b9e6f9999f0cd4062c533d",
"1ae29cab2a5e33cbe98728b7b4271c67f7c5cd6e12e39128b9971e08496cbd84",
"cfa99c77c88867d33e73acef37022ba4422a5221776991d45416db71fb54bc6c",
"104f6a8e50e8905161709215104a7e7b97e866f32cf43233ffd615cab6669983",
"2ec607cf59c85a7f56fa957aa5f5d7ec9f46d84d5d4b777122d41ad76c6f4968",
"aeedca243f2030d4f502e58f4181130e9afb75309ac21637bcfd0717528bfb82",
"ffe1b6c9fadee6ba70357210990539184bcc913a0ec65837a736733a2fb6172d"
],
"maturity": "2021-02-04T00:00:00Z",
"descriptor": {
"base": 2,
"isSigned": false,
"unit": "BTC/USD",
"precision": 0
},
"eventId": "bitcoin-s-price-example"
}
}
}
},
"fundingPubKey": "03a63505d00a2f927904f9c7d3cd28b59cb105b8d028fc1b715ef243351cea0f33",
"payoutSPK": "1600148cd33b6fadc74aaca3982d3fd1891b1100a01e99",
"payoutSerialId": 7520084828858968064,
"offerCollateralSatoshis": 50000,
"fundingInputs": [
{
"inputSerialId": 3740391543456242688,
"prevTx": "020000000001023ef93b35f692ce8f7ee0cfeb034941dec751fd9237624482d447964cbca1b7660000000000fdffffff787320985c52d762a56cdc5e64ef1155f0ccc722e3f51bd164406261dbc0e3ab0100000000fdffffff035af1d70000000000160014eff30273b9aa3feb39fee0916a09bf2c2477df0a4a87010000000000220020740aa2449461fd922c136ac68cd954773896276f6fc1b3b98821bac43729f012248c4300000000001600147532253f570665ff9af4b53bcac49351f8236c8402473044022027fccc6f4f796465c36261d02db821a38253e44d968c9c02ae366f743cb51bf802202eedb11a6dd006e7c1b7aefb6a5f0d729f958ccc0f88887c73d756533958d9ac01210203772fc0e7d0550414e00254af8ef148999bff47a0ceb31f44b45d7f46b4d7ec0247304402207d008545f772aadc1a2c6a632140c0c720ea0371fcce8863a7fedcb7222b0f8102203f86e0ee14ac1b9b113294fc00b81f989e064441a35e86cb1d67075c7ab4029101210360d0f354faab35e3e2ee50a39059a72ba923162ca3f1ddb75a617de19447e83200000000",
"prevTxVout": 0,
"sequence": 4294967293,
"maxWitnessLen": 107,
"redeemScript": null
}
],
"changeSPK": "16001404a16b09c5eba2e29899d2eaf5e9dde374be4940",
"changeSerialId": 3404283908717475840,
"fundOutputSerialId": 6109310038405377024,
"feeRatePerVb": 1,
"cetLocktime": 0,
"refundLocktime": 707177
}
```
Now what Alice needs to send Bob her
1. Offer
2. Tor address
She can retrieve her tor address with
```
./bitcoin-s-cli getdlchostaddress
v573gl64h5zik544qvi725vxliiwwpsedarsziidp254u3cfnxlp6zqd.onion:2862
```
#### Accept
Once Bob has received Alice's dlc host address and the offer, and reviews the terms of the offer with `decodeoffer`, he
can accept the offer.
```
./bitcoin-s-cli acceptdlc 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 v573gl64h5zik544qvi725vxliiwwpsedarsziidp254u3cfnxlp6zqd.onion:2862
```
Currently this RPC doesn't return anything, but if you look at logs you should see your funding tx broadcast.
You can find logs at `~/.bitcoin-s/{mainnet,testnet3,regtest}/bitcoin-s.log`
```
[info] 2021-10-15T21:21:11UTC INFO [DLCClient] connecting to SOCKS5 proxy localhost/127.0.0.1:65396
[info] 2021-10-15T21:21:11UTC INFO [DLCClient] connected to SOCKS5 proxy localhost/127.0.0.1:65396
[info] 2021-10-15T21:21:11UTC INFO [DLCClient] connecting to v573gl64h5zik544qvi725vxliiwwpsedarsziidp254u3cfnxlp6zqd.onion:2862 via SOCKS5 localhost/127.0.0.1:65396
[info] 2021-10-15T21:21:48UTC INFO [DLCClient] connected to v573gl64h5zik544qvi725vxliiwwpsedarsziidp254u3cfnxlp6zqd.onion:2862 via SOCKS5 proxy localhost/127.0.0.1:65396
[info] 2021-10-15T21:21:48UTC INFO [DLCDataHandler] Received LnMessage DLCOfferTLV
[info] 2021-10-15T21:21:48UTC INFO [DLCWallet$DLCWalletImpl] Initializing DLC from received offer with tempContractId acdeaf6a46f3dab8be37e59a3684183cdbfd4e9fbc84a09fc420d67c1334466e
[info] 2021-10-15T21:21:48UTC INFO [HikariDataSource] bitcoin-s.dlc.db - Starting...
[info] 2021-10-15T21:21:48UTC INFO [HikariDataSource] bitcoin-s.dlc.db - Start completed.
[info] 2021-10-15T21:21:48UTC INFO [DLCWallet$DLCWalletImpl] Creating DLC Accept for tempContractId acdeaf6a46f3dab8be37e59a3684183cdbfd4e9fbc84a09fc420d67c1334466e
[info] 2021-10-15T21:21:49UTC INFO [DLCWallet$DLCWalletImpl] Spending UTXOs: 91de6518fbf9eb656d9690224655049f5f21ac1c2189a142b1e0ce586989740d:2
[info] 2021-10-15T21:21:49UTC INFO [DLCWallet$DLCWalletImpl] UTXO 0 details: TransactionOutput(4426788 sats,wpkh(7532253f570665ff9af4b53bcac49351f8236c84))
[info] 2021-10-15T21:21:49UTC INFO [DLCWallet$DLCWalletImpl] Creating CET Sigs for fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701
[info] 2021-10-15T21:21:50UTC INFO [DLCWallet$DLCWalletImpl] Created DLCAccept for tempContractId acdeaf6a46f3dab8be37e59a3684183cdbfd4e9fbc84a09fc420d67c1334466e with contract Id fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701
[info] 2021-10-15T21:22:07UTC INFO [DLCDataHandler] Received LnMessage DLCSignTLV
[info] 2021-10-15T21:22:07UTC INFO [DLCWallet$DLCWalletImpl] Verifying CET Signatures for contract fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701
[info] 2021-10-15T21:22:09UTC INFO [DLCWallet$DLCWalletImpl] CET Signatures are valid for contract fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701
[info] 2021-10-15T21:22:09UTC INFO [DLCWallet$DLCWalletImpl] Verifying 1 funding sigs for contract fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701
[info] 2021-10-15T21:22:11UTC INFO [DLCWallet$DLCWalletImpl] DLC fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701 sigs are verified and stored, ready to broadcast
[info] 2021-10-15T21:22:12UTC INFO [DLCWallet$DLCWalletImpl] Created funding transaction 5096a88e0fca628dc882ebb0d06533949020016c24297b983d3aebbc56f2616f for contract fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701
[info] 2021-10-15T21:22:12UTC INFO [DLCWallet$DLCWalletImpl] Broadcasting funding transaction 5096a88e0fca628dc882ebb0d06533949020016c24297b983d3aebbc56f2616f for contract fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701
[info] 2021-10-15T21:22:12UTC INFO [DLCWallet$DLCWalletImpl] Adding UTXO to wallet: 6f61f256bceb3a3d987b29246c012090943365d0b0eb82c88d62ca0f8ea89650:2 amt=4376577 sats
[info] 2021-10-15T21:22:12UTC INFO [DLCWallet$DLCWalletImpl] Successfully inserted UTXO 6f61f256bceb3a3d987b29246c012090943365d0b0eb82c88d62ca0f8ea89650:2 into DB
[info] 2021-10-15T21:22:12UTC INFO [DLCWallet$DLCWalletImpl] Processing tx 5096a88e0fca628dc882ebb0d06533949020016c24297b983d3aebbc56f2616f for 1 DLC(s)
```
You can check the state of the DLC with `getdlcs`
```
./bitcoin-s-cli getdlcs
[
{
"state": "Broadcasted",
"dlcId": "543249d7c34014a774810d3633fb7d19f339fbcd4e88ceccad7018fa7b611706",
"isInitiator": false,
"lastUpdated": "2021-10-15T21:22:12.149Z",
"tempContractId": "acdeaf6a46f3dab8be37e59a3684183cdbfd4e9fbc84a09fc420d67c1334466e",
"contractId": "fc4807e44939b83576b50e2ae6e12ba84bdd4ff398addb07f91a3dc045c62701",
"contractInfo": "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",
"contractMaturity": 706169,
"contractTimeout": 707177,
"feeRate": 1,
"totalCollateral": 100000,
"localCollateral": 50000,
"remoteCollateral": 50000,
"fundingTxId": "5096a88e0fca628dc882ebb0d06533949020016c24297b983d3aebbc56f2616f"
}
]
```
You can find things like the `fundingTxId`, `state`, `dlcId`, and `contractId` from this RPC call. Since we just
broadcast the funding transaction, the state of the DLC is `Broadcast`.
Reference in a new issue Copy permalink