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基于 Mixin Network 的 Go 语言比特币开发教程 : 用 Mixin Messenger 机器人接受和发送比特币

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  •   myrual · 2019-03-04 17:31:26 +08:00 · 935 次点击
    这是一个创建于 1005 天前的主题,其中的信息可能已经有所发展或是发生改变。

    基于 Mixin Network 的 Go 语言比特币开发教程 : 用 Mixin Messenger 机器人接受和发送比特币

    cover上一篇教程中, 我们创建了自动回复消息的机器人,当用户发送消息"Hello,World!"时,机器人会自动回复同一条消息!

    按本篇教程后学习后完成后,你的机器人将会接受用户发送过来的加密货币,然后立即转回用户。 完整代码如下:

    main.go

    fpackage main
    
    import (
    	"context"
    	"encoding/base64"
    	"encoding/json"
    	"log"
    	"github.com/MooooonStar/mixin-sdk-go/messenger"
    	mixin "github.com/MooooonStar/mixin-sdk-go/network"
    )
    
    type Listener struct {
    	*messenger.Messenger
    }
    
    // interface to implement if you want to handle the message
    func (l *Listener) OnMessage(ctx context.Context, msg messenger.MessageView, userId string) error {
    	data, err := base64.StdEncoding.DecodeString(msg.Data)
    	if err != nil {
    		return err
    	}
    	if msg.Category == "SYSTEM_ACCOUNT_SNAPSHOT" {
    		var transfer messenger.TransferView
    		if err := json.Unmarshal(data, &transfer); err != nil {
    			return err
    		}
    		log.Println("I got a coin: ", transfer.Amount)
    		mixin.Transfer(msg.UserId,transfer.Amount,transfer.AssetId,"",messenger.UuidNewV4().String(),
    									PinCode,PinToken,UserId,SessionId,PrivateKey)
    		return nil
    		// return l.SendPlainText(ctx, msg.ConversationId, msg.UserId, string(data))
    	} else if msg.Category == "PLAIN_TEXT" {
    		log.Printf("I got a message, it said: %s", string(data))
    		if string(data) == "g" {
    			payLinkEOS := "https://mixin.one/pay?recipient=" +
    							 msg.UserId  + "&asset=" +
    							 "6cfe566e-4aad-470b-8c9a-2fd35b49c68d"   +
    							 "&amount=" + "0.1" +
    							 "&trace="  + messenger.UuidNewV4().String() +
    							 "&memo="
    		  payLinkBTC := "https://mixin.one/pay?recipient=" +
    							 msg.UserId  + "&asset=" +
    							 "c6d0c728-2624-429b-8e0d-d9d19b6592fa"   +
    							 "&amount=" + "0.001" +
    							 "&trace="  + messenger.UuidNewV4().String() +
    							 "&memo="
    		  log.Println(payLinkBTC)
    			BtnEOS := messenger.Button{Label: "Pay EOS 0.1", Color: "#0080FF", Action: payLinkEOS}
    			BtnBTC := messenger.Button{Label: "Pay BTC 0.0001", Color: "#00FF80", Action: payLinkBTC}
    			if err := l.SendAppButtons(ctx, msg.ConversationId, msg.UserId, BtnEOS, BtnBTC); err != nil {
    				return err
    			}
    			return nil
    		} else if string(data) == "a"  {
    			card := messenger.AppCard{Title: "Pay BTC 0.0001", Description: "topay", Action: "http://www.google.cn",
    				IconUrl: "https://images.mixin.one/HvYGJsV5TGeZ-X9Ek3FEQohQZ3fE9LBEBGcOcn4c4BNHovP4fW4YB97Dg5LcXoQ1hUjMEgjbl1DPlKg1TW7kK6XP=s128"}
    			if err := l.SendAppCard(ctx, msg.ConversationId, msg.UserId, card); err != nil {
    				return err
    			}
    			return nil
    		} else if string(data) == "r" {
    			mixin.Transfer(msg.UserId,"0.0001","c6d0c728-2624-429b-8e0d-d9d19b6592fa","",messenger.UuidNewV4().String(),
    										PinCode,PinToken,UserId,SessionId,PrivateKey)
    			return nil
    		} else { return l.SendPlainText(ctx, msg.ConversationId, msg.UserId, string(data)) }
    	} else {
    		log.Println("Unknown message!", msg.Category)
    		return err
    	}
    }
    const (
    	UserId    = "21042518-85c7-4903-bb19-f311813d1f51"
    	PinCode   = "911424"
    	SessionId = "4267b63d-3daa-449e-bc13-970aa0357776"
    	PinToken  = "gUUxpm3fPRVkKZNwA/gk10SHHDtR8LmxO+N6KbsZ/jymmwwVitUHKgLbk1NISdN8jBvsYJgF/5hbkxNnCJER5XAZ0Y35gsAxBOgcFN8otsV6F0FAm5TnWN8YYCqeFnXYJnqmI30IXJTAgMhliLj7iZsvyY/3htaHUUuN5pQ5F5s="
    	//please delele the blank of PrivateKey the before each line
    	PrivateKey = `-----BEGIN RSA PRIVATE KEY-----
    MIICXQIBAAKBgQCDXiWJRLe9BzPtXmcVe6acaFTY9Ogb4Hc2VHFjKFsp7QRVCytx
    3KC/LRojTFViwwExaANTZQ6ectwpAxIvzeYeHDZCXCh6JRFIYK/ZuREmYPcPQEWD
    s92Tv/4XTAdTH8l9UJ4VQY4zwqYMak237N9xEvowT0eR8lpeJG0jAjN97QIDAQAB
    AoGADvORLB1hGCeQtmxvKRfIr7aEKak+HaYfi1RzD0kRjyUFwDQkPrJQrVGRzwCq
    GzJ8mUXwUvaGgmwqOJS75ir2DL8KPz7UfgQnSsHDUwKqUzULgW6nd/3OdDTYWWaN
    cDjbkEpsVchOpcdkywvZhhyGXszpM20Vr8emlBcFUOTfpTUCQQDVVjkeMcpRsImV
    U3tPYyiuqADhBTcgPBb+Ownk/87jyKF1CZOPvJAebNmpfJP0RMxUVvT4B9/U/yxZ
    WNLhLtCXAkEAnaOEuefUxGdE8/55dUTEb7xrr22mNqykJaax3zFK+hSFBrM3gUY5
    fEETtHnl4gEdX4jCPybRVc1JSFY/GWoyGwJBAKoLti95JHkErEXYavuWYEEHLNwv
    mgcZnoI6cOKVfEVYEEoHvhTeCkoWHVDZOd2EURIQ1eY18JYIZ0M4Z66R8DUCQCsK
    iKTR3dA6eiM8qiEQw6nWgniFscpf3PnCx/Iu3U/m5mNr743GhM+eXSj7136b209I
    YfEoQiPxRz8O/W+NBV0CQQDVPNqJlFD34MC9aQN42l3NV1hDsl1+nSkWkXSyhhNR
    MpobtV1a7IgJGyt5HxBzgNlBNOayICRf0rRjvCdw6aTP
    -----END RSA PRIVATE KEY-----`
    )
    
    
    func main() {
    	ctx := context.Background()
    	m := messenger.NewMessenger(UserId, SessionId, PrivateKey)
    	l := &Listener{m}
    	go m.Run(ctx, l)
    	select {}
    }
    
    

    你好, 比特币!

    在项目目录下编译并执行

    cd mixin_labs-go-bot
    go build
    ./mixin_labs-go-bot
    

    开发者可以通过消息面板,给机器人转比特币,当机器人收到比特币后,马上返还给用户! transfer and tokens

    事实上,用户可以发送任意的币种给机器人,它都能马上返还! pay-link

    源代码解释

    if msg.Category == "SYSTEM_ACCOUNT_SNAPSHOT" {
      var transfer messenger.TransferView
      if err := json.Unmarshal(data, &transfer); err != nil {
        return err
      }
      log.Println("I got a coin: ", transfer.Amount)
      mixin.Transfer(msg.UserId,transfer.Amount,transfer.AssetId,"",messenger.UuidNewV4().String(),
                    PinCode,PinToken,UserId,SessionId,PrivateKey)
      return nil
      // return l.SendPlainText(ctx, msg.ConversationId, msg.UserId, string(data))
    }
    

    调用 SDK 的 mixin.Transfer 将币返还用户!

    高级用法

    APP_BUTTON_GROUP

    在一些应用场景,比如:有一个交易所想提供换币服务,将比特币换成以太坊,EOS,比特币现金等, 你想显示给用户一组按钮,它们分别代表不同的币与不同的数量,APP_BUTTON_GROUP 可以帮你做到这一点.

    payLinkEOS := "https://mixin.one/pay?recipient=" +
             msg.UserId  + "&asset=" +
             "6cfe566e-4aad-470b-8c9a-2fd35b49c68d"   +
             "&amount=" + "0.1" +
             "&trace="  + messenger.UuidNewV4().String() +
             "&memo="
    payLinkBTC := "https://mixin.one/pay?recipient=" +
             msg.UserId  + "&asset=" +
             "c6d0c728-2624-429b-8e0d-d9d19b6592fa"   +
             "&amount=" + "0.001" +
             "&trace="  + messenger.UuidNewV4().String() +
             "&memo="
    log.Println(payLinkBTC)
    BtnEOS := messenger.Button{Label: "Pay EOS 0.1", Color: "#0080FF", Action: payLinkEOS}
    BtnBTC := messenger.Button{Label: "Pay BTC 0.001", Color: "#00FF80", Action: payLinkBTC}
    if err := l.SendAppButtons(ctx, msg.ConversationId, msg.UserId, BtnEOS, BtnBTC); err != nil {
      return err
    }
    

    这里演示给用户 BTC 与 EOS 两种,你还可以增加更多的按钮.

    APP_CARD

    如果你觉得一组按钮太单调了,可以试一下 APP_CARD,它提供一个图标的链接

    card := messenger.AppCard{Title: "CNB", Description: "Chui Niu Bi", Action: "http://www.google.cn",
      IconUrl: "https://images.mixin.one/0sQY63dDMkWTURkJVjowWY6Le4ICjAFuu3ANVyZA4uI3UdkbuOT5fjJUT82ArNYmZvVcxDXyNjxoOv0TAYbQTNKS=s128"}
    if err := l.SendAppCard(ctx, msg.ConversationId, msg.UserId, card); err != nil {
      return err
    }
    

    APP_CARD

    Full source code

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