我们已经创建过一个的机器人和一个能自动的机器人.
通过本教程的学习，你可以学到如下内容
- 如何创建一个比特币钱包.
- 如何读取比特币钱包的余额.
- 如何支付比特币并即时确认.
- 如何将Mixin Network的比特币提现到你的冷钱包或第三方交易所.
前期准备：你要有一个Mixin Network账户。下面的代码创建一个帐号，并写到csv文件里。
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA"); kpg.initialize(1024); KeyPair kp = kpg.genKeyPair(); RSAPrivateKey priv = (RSAPrivateKey) kp.getPrivate(); RSAPublicKey pub = (RSAPublicKey) kp.getPublic(); String SessionSecret = Base64.getEncoder().encodeToString(pub.getEncoded()); JsonObject walletInfo = mixinApi.createUser("java wallet",SessionSecret); System.out.println(walletInfo.get("session_id").getAsString()); BufferedWriter writer = Files.newBufferedWriter(Paths.get(WALLET_FILANAME), StandardOpenOption.CREATE, StandardOpenOption.APPEND); CSVPrinter csvPrinter = new CSVPrinter(writer, CSVFormat.DEFAULT.withDelimiter(',')); csvPrinter.printRecord(Arrays.asList(Base64.getEncoder().encodeToString(priv.getEncoded()), walletInfo.get("pin_token").getAsString(), walletInfo.get("session_id").getAsString(), walletInfo.get("user_id").getAsString())); csvPrinter.flush(); MixinAPI mixinApiUser = generateAPI_FromCSV(); JsonObject asset = mixinApiUser.updatePin("","123456"); System.out.println(asset);复制代码 上面的语句会在本地创建一个RSA密钥对，然后调用Mixin Network来创建帐号，最后保存帐号信息到csv文件.
现在你需要小心保管好你的帐号信息，在读取该账户的比特币资产余额或者进行其他操作时，将需要用到这些信息.
给新建的帐号创建一个比特币钱包
新账号并不默认内置比特币钱包， 现在读一下比特币余额就可以创建一个比特币钱包。
MixinAPI mixinApiUser = generateAPI_FromCSV(); JsonObject asset = mixinApiUser.getAsset(BTC_ASSET_ID); System.out.println(asset); System.out.println("------------------------BTC------Information---------------------------"); System.out.println("The BTC wallet address is " + asset.get("public_key").getAsString()); System.out.println("The BTC wallet balance is " + asset.get("balance").getAsString()); System.out.println("-----------------------------------------------------------------------");复制代码 创建的帐号的比特币资产详细信息如下，其中public key就是比特币的存币地址:
Make your choose:22{ "type":"asset","asset_id":"c6d0c728-2624-429b-8e0d-d9d19b6592fa","chain_id":"c6d0c728-2624-429b-8e0d-d9d19b6592fa","symbol":"BTC","name":"Bitcoin","icon_url":"https://images.mixin.one/HvYGJsV5TGeZ-X9Ek3FEQohQZ3fE9LBEBGcOcn4c4BNHovP4fW4YB97Dg5LcXoQ1hUjMEgjbl1DPlKg1TW7kK6XP=s128","balance":"0","public_key":"1KVcMVbSNdubRPKwGcaf9isuMXWFKCCkAH","account_name":"","account_tag":"","price_btc":"1","price_usd":"5081.36352765","change_btc":"0","change_usd":"-0.019033421740167297","asset_key":"c6d0c728-2624-429b-8e0d-d9d19b6592fa","confirmations":6,"capitalization":0}------------------------BTC------Information---------------------------The BTC wallet address is 1KVcMVbSNdubRPKwGcaf9isuMXWFKCCkAHThe BTC wallet balance is 0-----------------------------------------------------------------------复制代码 这个API能够提供若干与比特币有关的信息:
- 存币地址:[public_key]
- Logo: [icon_url]
- 资产名字:[name]
- 资产在Mixin Network的uuid: [asset_key]
- 对美元的价格(Coinmarketcap.com提供): [price_usd]
- 存币时确认的区块数量:[confirmations]
比特币私钥呢？
比特币的私钥呢？这个私钥被Mixin Network通过多重签名保护，所以对用户来说是不可见的,比特币资产的提现和转账都需要用户提供正确的的RSA签名,PIN代码与会话密钥才能完成.
不只是比特币，还有以太坊，EOS等
这个帐号不只支持比特币，还支持以太坊，EOS等, 完整的区块链支持. 这个账户同时也支持所有的 ERC20 代币与 EOS 代币.
创建其它的币的钱包与创建比特币钱包过程一样，读对应的资产余额就可以.
Mixin Network 当前支持的加密货币 (2019-02-19)
| crypto | uuid in Mixin Network |
|---|---|
| EOS | 6cfe566e-4aad-470b-8c9a-2fd35b49c68d |
| CNB | 965e5c6e-434c-3fa9-b780-c50f43cd955c |
| BTC | c6d0c728-2624-429b-8e0d-d9d19b6592fa |
| ETC | 2204c1ee-0ea2-4add-bb9a-b3719cfff93a |
| XRP | 23dfb5a5-5d7b-48b6-905f-3970e3176e27 |
| XEM | 27921032-f73e-434e-955f-43d55672ee31 |
| ETH | 43d61dcd-e413-450d-80b8-101d5e903357 |
| DASH | 6472e7e3-75fd-48b6-b1dc-28d294ee1476 |
| DOGE | 6770a1e5-6086-44d5-b60f-545f9d9e8ffd |
| LTC | 76c802a2-7c88-447f-a93e-c29c9e5dd9c8 |
| SC | 990c4c29-57e9-48f6-9819-7d986ea44985 |
| ZEN | a2c5d22b-62a2-4c13-b3f0-013290dbac60 |
| ZEC | c996abc9-d94e-4494-b1cf-2a3fd3ac5714 |
| BCH | fd11b6e3-0b87-41f1-a41f-f0e9b49e5bf0 |
EOS的存币地址与其它的币有些不同，它由两部分组成： account_name and account tag, 如果你向Mixin Network存入EOS，你需要填两项数据： account name 是eoswithmixin,备注里输入你的account_tag,比如0aa2b00fad2c69059ca1b50de2b45569.
EOS的资产余额返回结果如下:
{ "type":"asset","asset_id":"6cfe566e-4aad-470b-8c9a-2fd35b49c68d","chain_id":"6cfe566e-4aad-470b-8c9a-2fd35b49c68d","symbol":"EOS","name":"EOS","icon_url":"https://images.mixin.one/a5dtG-IAg2IO0Zm4HxqJoQjfz-5nf1HWZ0teCyOnReMd3pmB8oEdSAXWvFHt2AJkJj5YgfyceTACjGmXnI-VyRo=s128","balance":"0","public_key":"","account_name":"eoswithmixin","account_tag":"10ad0870e9595bdedb4334360a8d4165","price_btc":"0.00105635","price_usd":"5.38549443","change_btc":"-0.014835576787888972","change_usd":"-0.031082698851444927","asset_key":"eosio.token:EOS","confirmations":64,"capitalization":0}------------------------EOS------Information---------------------------The EOS wallet Name is eoswithmixin Tag is 10ad0870e9595bdedb4334360a8d4165The EOS wallet balance is 0-----------------------------------------------------------------------复制代码 存入比特币与读取比特币余额
现在，你可以向比特币的钱包存币了。
当然，在比特币网络里转币，手续费是相当贵的，费用的中位数在0.001BTC,按当前4000美元的价格，在4美元左右，有一个方便的办法，如果你有帐号，里面并且有比特币的话，可以直接提现比特币到新创建的帐号的比特币充值地址，它们在同一个Mixin Network网络内，手续费为0，而且1秒到账。
下面的代码，可以读取比特币钱包余额.
JsonObject asset = mixinApiUser.getAsset(BTC_ASSET_ID);复制代码
Mixin Network网内免手续费的，并且即时确认
任何币在Mixin Network内部的交易，都是无手续费的，并且立刻到账。 前期准备： 账户设置了PIN
对于新创建的帐号，我们通过updatePin来设置新PIN码, 代码如下：
MixinAPI mixinApiUser = generateAPI_FromCSV(); JsonObject asset = mixinApiUser.updatePin("","123456"); System.out.println(asset);复制代码 Mixin Network帐号之间的比特币支付
通过Mixin Messenger，我们可以先转比特币给机器人，然后让机器人转币给新用户。
if ( input.equals("tbb") ) { MixinAPI mixinApiUser = generateAPI_FromCSV(); JsonObject asset = mixinApi.getAsset(BTC_ASSET_ID); System.out.println(asset); if ( asset.get("balance").getAsFloat() > 0 ) { JsonObject transInfo = mixinApi.transfer(BTC_ASSET_ID,mixinApiUser.getClientID(), asset.get("balance").getAsString(),"hi"); System.out.println("------------------------BTC Transfer from Bot Information---------------------------"); System.out.println(transInfo); System.out.println("-----------------------------------------------------------------------"); } }复制代码 读取Bitcoin的余额，来确认比特币是不是转成功了！ 注意mixinApiUser是新用户的。
JsonObject asset = mixinApiUser.getAsset(BTC_ASSET_ID);复制代码
如何将比特币存入你的冷钱包或者第三方交易所
如果你希望将币存入你的冷钱包或者第三方交易所, 先要得到冷钱包或者你在第三方交易所的钱包地址，然后将钱包地址提交到Mixin Network.
- 要点提示: 提现是需要支付收续费的,准备好比特币包地址!
增加目的钱包地址到Mixin Network
调用createAddress API, 将会返回一个address_id,下一步的提现操作会用到这个id。
private static final String BTC_WALLET_ADDR = "14T129GTbXXPGXXvZzVaNLRFPeHXD1C25C"; private static final String BTC_ASSET_ID = "c6d0c728-2624-429b-8e0d-d9d19b6592fa"; MixinAPI mixinApiUser = generateAPI_FromCSV(); JsonObject addrInfo = mixinApiUser.createWithdrawAddress(BTC_ASSET_ID, BTC_WALLET_ADDR,"","","123456","hi"); System.out.println(addrInfo); System.out.println("------------------------BTC---Withdrawal---Information---------------------------"); System.out.println("The BTC Witchdrawal address is " + addrInfo.get("public_key").getAsString()); System.out.println("The BTC withdraw fee is " + addrInfo.get("fee").getAsString()); System.out.print("Input the BTC withdraw amount:"); String eosAmount = System.console().readLine(); JsonObject withdrawInfo = mixinApiUser.withdrawals(addrInfo.get("address_id").getAsString(), eosAmount,"","123456","memo"); System.out.println(withdrawInfo);复制代码 这里的 14T129GTbXXPGXXvZzVaNLRFPeHXD1C25C 就是一个比特币钱包地址, 如下所示，提现费用是0.0025738 BTC, address_id 是"345855b5-56a5-4f3b-ba9e-d99601ef86c1".
Make your choose:wbwb{ "type":"address","address_id":"58860d12-cbdc-40ae-8a4a-b0fc72f418b3","asset_id":"c6d0c728-2624-429b-8e0d-d9d19b6592fa","public_key":"14T129GTbXXPGXXvZzVaNLRFPeHXD1C25C","label":"hi","account_name":"","account_tag":"","fee":"0.00118846","reserve":"0","dust":"0.0001","updated_at":"2019-04-16T06:12:15.686517454Z"}------------------------BTC---Withdrawal---Information---------------------------The BTC Witchdrawal address is 14T129GTbXXPGXXvZzVaNLRFPeHXD1C25CThe BTC withdraw fee is 0.00118846复制代码 创建提现地址成功后，你可以用readAddress读取最新的提现费。
JsonObject addrInfo3 = mixinApiUser.getAddress(addrInfo.get("address_id").getAsString()); System.out.println(addrInfo3);复制代码 提交提现请求，Mixin Network会即时处理提现请求.
提交提现请求到 Mixin Network, withdrawAddress.address_id 就是createAddress创建的。
MixinAPI mixinApiUser = generateAPI_FromCSV(); JsonObject addrInfo = mixinApiUser.createWithdrawAddress(BTC_ASSET_ID, BTC_WALLET_ADDR,"","","123456","hi"); System.out.println(addrInfo); System.out.println("------------------------BTC---Withdrawal---Information---------------------------"); System.out.println("The BTC Witchdrawal address is " + addrInfo.get("public_key").getAsString()); System.out.println("The BTC withdraw fee is " + addrInfo.get("fee").getAsString()); System.out.print("Input the BTC withdraw amount:"); String eosAmount = System.console().readLine(); JsonObject withdrawInfo = mixinApiUser.withdrawals(addrInfo.get("address_id").getAsString(), eosAmount,"","123456","memo"); System.out.println(withdrawInfo); System.out.println("-----------------------------------------------------------------------");复制代码