使用 NodeJS 调用 API 接口 进行转账和 Bitshares 内盘交易

Tiny Hill
  2018-01-25 09:55 2018-01-25 09:55 创建时间   2018-01-25 09:55 2018-01-25 09:55 更新时间      

使用官方的 bitsharesjs 库进行开发，参考了官方的转账例子，补充了下单的部分，更多的使用细节需要自己研究代码。

这里附上转账和下单的示例函数。

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/* import {Apis} from "bitsharesjs-ws";
import {ChainStore, FetchChain, PrivateKey, TransactionHelper, Aes, TransactionBuilder} from "bitsharesjs"; */
const Apis = require("bitsharesjs-ws").Apis;
const ChainStore = require("bitsharesjs").ChainStore;
const FetchChain = require("bitsharesjs").FetchChain;
const PrivateKey = require("bitsharesjs").PrivateKey;
const TransactionHelper = require("bitsharesjs").TransactionHelper;
const Aes = require("bitsharesjs").Aes;
const TransactionBuilder = require("bitsharesjs").TransactionBuilder;

const BTS_PRECISION = 100000;
const CNY_PRECISION = 10000;

const wss_url = "wss://bitshares-api.wancloud.io/ws";
var privKey = "privKey"; //change to your privKey
let pKey = PrivateKey.fromWif(privKey);

const transfer = function(fromAccount, toAccount, sendAmount, memo) {
  return new Promise((resolve, reject) => {
    Apis.instance(wss_url, true).init_promise.then(res => {
      console.log("connected to:", res[0].network_name, "network");

      ChainStore.init().then(() => {
        let memoSender = fromAccount;

        Promise.all([
          FetchChain("getAccount", fromAccount),
          FetchChain("getAccount", toAccount),
          FetchChain("getAccount", memoSender),
          FetchChain("getAsset", sendAmount.asset),
          FetchChain("getAsset", sendAmount.asset)
        ]).then(res => {
          // console.log("got data:", res);
          let [fromAccount, toAccount, memoSender, sendAsset, feeAsset] = res;

          // Memos are optional, but if you have one you need to encrypt it here
          let memoFromKey = memoSender.getIn(["options", "memo_key"]);
          console.log("memo pub key:", memoFromKey);
          let memoToKey = toAccount.getIn(["options", "memo_key"]);
          let nonce = TransactionHelper.unique_nonce_uint64();

          let memo_object = {
            from: memoFromKey,
            to: memoToKey,
            nonce,
            message: Aes.encrypt_with_checksum(pKey, memoToKey, nonce, memo)
          };

          let tr = new TransactionBuilder();

          tr.add_type_operation("transfer", {
            fee: {
              amount: 0,
              asset_id: feeAsset.get("id")
            },
            from: fromAccount.get("id"),
            to: toAccount.get("id"),
            amount: {
              amount: sendAmount.amount,
              asset_id: sendAsset.get("id")
            },
            memo: memo_object
          });

          tr.set_required_fees().then(() => {
            tr.add_signer(pKey, pKey.toPublicKey().toPublicKeyString());
            console.log("serialized transaction:", tr.serialize());
            tr.broadcast(() => {
              console.log("transaction done");
            });
          });
        });
      });
    });
  });
};

const transferBTS = function(fromAccount, toAccount, amount, memo) {
  transfer(
    fromAccount,
    toAccount,
    { amount: amount * BTS_PRECISION, asset: "BTS" },
    memo
  );
};

const create_order = function(orderAccount, sellAmount, buyAmount) {
  return new Promise((resolve, reject) => {
    Apis.instance(wss_url, true).init_promise.then(res => {
      console.log("connected to:", res[0].network_name, "network");

      ChainStore.init().then(() => {
        Promise.all([
          FetchChain("getAccount", orderAccount),
          FetchChain("getAsset", sellAmount.asset),
          FetchChain("getAsset", buyAmount.asset)
        ]).then(res => {
          // console.log("got data:", res);
          let orderAccount = res[0];
          let sellAsset = res[1];
          let feeAsset = sellAsset;
          let buyAsset = res[2];

          let tr = new TransactionBuilder();

          tr.add_type_operation("limit_order_create", {
            fee: {
              amount: 0,
              asset_id: feeAsset.get("id")
            },
            seller: orderAccount.get("id"),
            amount_to_sell: {
              amount: sellAmount.amount,
              asset_id: sellAsset.get("id")
            },
            min_to_receive: {
              amount: buyAmount.amount,
              asset_id: buyAsset.get("id")
            },
            expiration: Math.floor(Date.now() / 1000) + 20,
            fill_or_kill: false
          });

          tr.set_required_fees().then(() => {
            tr.add_signer(pKey, pKey.toPublicKey().toPublicKeyString());
            console.log("serialized transaction:", tr.serialize());
            tr.broadcast(() => {
              console.log("transaction done");
            }).catch(err => {
              console.log(err);
            });
          });
        });
      });
    });
  });
};

transferBTS("imba", "qiushaoxi", 0.05, "test nodejs");
create_order(
  "imba",
  { amount: 0.5 * BTS_PRECISION, asset: "BTS" },
  { amount: 5 * CNY_PRECISION, asset: "CNY" }
);
此页目录
使用 NodeJS 调用 API 接口 进行转账和 Bitshares 内盘交易