Yemel Jardi
10 years ago
2 changed files with 126 additions and 0 deletions
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# Bitcore examples |
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## Generate a random address |
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```javascript |
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var privateKey = new bitcore.PrivateKey(); |
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var address = privateKey.toAddress(); |
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``` |
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## Generate a address from a SHA256 hash |
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```javascript |
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var value = new Buffer('correct horse battery staple'); |
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var hash = bitcore.crypto.Hash.sha256(value); |
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var bn = bitcore.crypto.BN.fromBuffer(hash); |
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var address = new bitcore.PrivateKey(bn).toAddress(); |
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``` |
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## Import an address via WIF |
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```javascript |
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var wif = 'Kxr9tQED9H44gCmp6HAdmemAzU3n84H3dGkuWTKvE23JgHMW8gct'; |
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var address = new bitcore.PrivateKey(wif).toAddress(); |
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``` |
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## Create a Transaction |
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```javascript |
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var privateKey = new bitcore.PrivateKey('L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy'); |
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var utxo = { |
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"txId" : "115e8f72f39fad874cfab0deed11a80f24f967a84079fb56ddf53ea02e308986", |
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"outputIndex" : 0, |
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"address" : "17XBj6iFEsf8kzDMGQk5ghZipxX49VXuaV", |
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"script" : "76a91447862fe165e6121af80d5dde1ecb478ed170565b88ac", |
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"satoshis" : 50000 |
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}; |
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var transaction = new bitcore.Transaction() |
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.from(utxo) |
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.to('1Gokm82v6DmtwKEB8AiVhm82hyFSsEvBDK', 15000) |
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.sign(privateKey); |
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``` |
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## Sign a Bitcoin message |
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```javascript |
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var Message = require('bitcore-message'); |
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var privateKey = new bitcore.PrivateKey('L23PpjkBQqpAF4vbMHNfTZAb3KFPBSawQ7KinFTzz7dxq6TZX8UA'); |
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var message = new Message('This is an example of a signed message.'); |
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var signature = message.sign(privateKey); |
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``` |
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## Verify a Bitcoin message |
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```javascript |
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var Message = require('bitcore-message'); |
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var address = '13Js7D3q4KvfSqgKN8LpNq57gcahrVc5JZ'; |
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var signature = 'IBOvIfsAs/da1e36W8kw1cQOPqPVXCW5zJgNQ5kI8m57FycZXdeFmeyoIqJSREzE4W7vfDmdmPk0HokuJPvgPPE='; |
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var verified = new Message('This is an example of a signed message.').verify(address, signature); |
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``` |
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## Create an OP RETURN transaction |
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```javascript |
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var privateKey = new bitcore.PrivateKey('L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy'); |
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var utxo = { |
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"txId" : "115e8f72f39fad874cfab0deed11a80f24f967a84079fb56ddf53ea02e308986", |
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"outputIndex" : 0, |
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"address" : "17XBj6iFEsf8kzDMGQk5ghZipxX49VXuaV", |
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"script" : "76a91447862fe165e6121af80d5dde1ecb478ed170565b88ac", |
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"satoshis" : 50000 |
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}; |
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var transaction = new bitcore.Transaction() |
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.from(utxo) |
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.addData('bitcore rocks') // Add OP_RETURN data |
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.sign(privateKey); |
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``` |
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## Create a 2-of-3 multisig P2SH address |
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```javascript |
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var publicKeys = [ |
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'026477115981fe981a6918a6297d9803c4dc04f328f22041bedff886bbc2962e01', |
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'02c96db2302d19b43d4c69368babace7854cc84eb9e061cde51cfa77ca4a22b8b9', |
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'03c6103b3b83e4a24a0e33a4df246ef11772f9992663db0c35759a5e2ebf68d8e9' |
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].map(bitcore.PublicKey); |
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var requiredSignatures = 2; |
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var address = new bitcore.Address(publicKeys, requiredSignatures); |
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``` |
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## Spend from a 2-of-2 multisig P2SH address |
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```javascript |
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var privateKeys = [ |
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new bitcore.PrivateKey('91avARGdfge8E4tZfYLoxeJ5sGBdNJQH4kvjJoQFacbgwmaKkrx'), |
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new bitcore.PrivateKey('91avARGdfge8E4tZfYLoxeJ5sGBdNJQH4kvjJoQFacbgww7vXtT') |
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]; |
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var publicKeys = privateKeys.map(bitcore.PublicKey); |
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var address = new bitcore.Address(publicKeys, 2); // 2 of 2 |
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var utxo = { |
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"txId" : "153068cdd81b73ec9d8dcce27f2c77ddda12dee3db424bff5cafdbe9f01c1756", |
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"outputIndex" : 0, |
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"address" : "2MvR3wixpB1usCNRugN6ufwxfT4GEFxoRhQ", |
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"script" : "a91422c4270d877177c1dd33037fb5b7bb3fd76cbb8b87", |
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"satoshis" : 20000 |
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}; |
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var transaction = new bitcore.Transaction() |
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.from(utxo, publicKeys, 2) |
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.to('mtoKs9V381UAhUia3d7Vb9GNak8Qvmcsme', 20000) |
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.sign(privateKeys); |
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``` |
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