基于区块链柚子(EOS)钱包前端插件 scatter

安装和使用

npm i scatterjs-core scatterjs-plugin-eosjs eosjs -D

//main.js
import ScatterJS from "scatterjs-core";
import ScatterEOS from "scatterjs-plugin-eosjs";
import Eos from "eosjs";
ScatterJS.plugins(new ScatterEOS());

网络链

// EOS公链(正式环境)
let main = {
    protocol: "https",
    blockchain: "eos",
    host: "nodes.get-scatter.com",
    port: 443,
    chainId: "aca376f206b8fc25a6ed44dbdc66547c36c6c33e3a119ffbeaef943642f0e906"
};

// 测试链 (就是用来测试的)
let jungle2 = {
    protocol: "http",
    blockchain: "eos",
    host: "jungle2.cryptolions.io",
    port: 80,
    chainId: "e70aaab8997e1dfce58fbfac80cbbb8fecec7b99cf982a9444273cbc64c41473"
};

调试和配置

FQ下载scatter插件安装.

1. 打开scatter ---setting--network---新建 把 jungle2 的信息填到对应的位置,(取名随便取,jungle2) --保存
2. 生成秘钥对,一键生成私钥和公钥
3. 新建测试账号,需要填入刚才的公钥,账号名是z-a,1-5长度12位组合
4. 充值,账号建立成功之后莫有钱, 可以先充值100块.测试的时候省着点用
5. 测试链上的账号建好之后,打开scatter---身份---新建,选择刚才建立的 network => jungle2,然后选择对应的账号. 点导入---保存

这样scatter 插件配置完毕.可以愉快的开发了.

创建scatter

ScatterJS.scatter.connect("app").then(connected => {
    if (!connected) return false;
    let scatter = ScatterJS.scatter;  //这里就是
    window.ScatterJS = null;
    window.scatter = null
     //通过两种方式拿到eos 对象
    // this.eos = Eos({ httpEndpoint: '', signatureProvider: ScatterJS.scatter.eosHook(jungle2) });
      this.eos = scatter.eos(jungle2, Eos, { expireInSeconds: 60 });
       //如果授权成功,则可以拿到用户相关信息
    if (scatter.identity) { 
        this.account = scatter.identity.accounts.find(x => x.blockchain === "eos");
    } 
});

授权和取消授权

//授权
const requiredFields = { accounts: [jungle2] };

scatter.getIdentity(requiredFields).then(() => {
    //分别拿到用户信息 和 eos 对象
    this.account = scatter.identity.accounts.find(x => x.blockchain === "eos");
    this.eos = scatter.eos(jungle2, Eos, { expireInSeconds: 60 }, 'https');
    
}).catch(res=>{
  
})

//退出
scatter.forgetIdentity().then(id => {
    this.account = null;
    this.eos = null 
});

转账交易部分

//取币种相关信息
let config = {
        account: 'xxx',  //账号名称
        code: "eosio.token", //合约名称
        symbol: "ETH" //币种
    };
eos.getCurrencyBalance(config).then(e => {
    console.log(e)
});

//取用户相关信息
eos.getAccount({ account_name: 'xxx' }).then(res => {
    // console.log(res)
    let totoal = res.core_liquid_balance   //余额
    let cpu = res.cpu_limit;  //CPU
    let net = res.net_limit;  //NET
});

//发起转账
// eos.transfer('发送方帐号', '接收方帐号', '0.3000 DEV','memo', options, callback)

eos.transfer(account.name, user, `${coin} EOS`, memo, transactionOptions).then(trx => {
    // That's it!
      console.log(`Transaction ID: ${trx.transaction_id}`);
      //有transaction_id 就代表转账成功了
}).catch(res => {
    
});

//还可以使用对象
eos.transfer({ from: '发送方帐号', to: '接收方帐号', quantity: '0.1000 DEV', memo: '备注', callback })

交互部分

// 获取Table行数据
eosjs.getTableRows({"scope":'合约名字', "code":'合约名字', "table":"game", "json": true},callback)

//执行合约上的函数

eos.contract("合约名字").then(actions => {       //actions随便起的变量名
    actions.test('hello', {                     //test是方法名, 'hello'是该actions合约test方法的参数
        authorization: [{actor:'lilei'}]           //lilei是建立该合约的用户
    }).then(result => {
        console.log(result);
    });

当然EOS 的 API非常多,但是对于前端而言,以上足够开发一个线上赌博游戏了.

至于说发代币啊,部署合约, 抵押,竞拍 ,出售 ,购买,新建帐号 这些都用不着, 可以转给后端.

[完]