怎么用JS写个自动点赞程序？

ericet(72)

Published in

#cn

Words

571

Reading

3 min

Listen

Play

(Image Source : Pixabay)

有没有好奇steemauto，steemrewarding的自动点赞是怎么实现的？

想不想自己写个属于自己的点赞程序？

其实理解原理这些点赞程序是很容易写的

steeemjs提供了一个点赞的function：

steem.broadcast.vote(postingKey, account, author, permlink, weight, function(err, result) {
    console.log(err, result);
});

只需填入相应的信息点赞程序就完成了。比如：

steem.broadcast.vote("发帖密钥", "账号", "ericet", "krwp-9zgk9bfvin", 10000, function(err, result) {
    console.log(err, result);
});

好了，点赞程序写完了。运行后会自动给我的帖子：https://steempeak.com/cn/@ericet/krwp-9zgk9bfvin 点个满赞。

是不是很简单？但是没啥实际用处。下面来添加一些功能，比如看到有新帖就自动点赞

在上一篇里介绍过一个function：steem.api.streamTransactions。这个function会实时查看发布到区块链上的操作。

加上这个function和点赞的function就可以给所有新帖自动点赞了。

const steem = require("steem");
const steemid = 'steemid';
const postingKey = 'postingKey';

start();

function start() {
    steem.api.streamTransactions("head", function(err, result) {
        if (result &amp;&amp; !err) {
            let txType = result.operations[0][0];
            let txData = result.operations[0][1];
            if (txType == "comment" && txData.parent_author == '') {
        upvote(txData.author,txData.permlink);
        }
        } else {
            console.log("Error found", err);
                start();
        }
    });
}

function upvote(author,permlink){
    steem.broadcast.vote(postingKey, steemid, author, permlink, 10000, function(err, result) {
            console.log(err, result);
    });

}

再加个新功能，点赞后自动留言：

const steem = require("steem");
const steemid = 'steemid';
const postingKey = 'postingKey';

start();

function start() {
    steem.api.streamTransactions("head", function(err, result) {
        if (result &amp;&amp; !err) {
            let txType = result.operations[0][0];
            let txData = result.operations[0][1];
            if (txType == "comment" && txData.parent_author == '') {
        upvote(txData.author,txData.permlink);
        reply(author,permlink);
        }
        } else {
            console.log("Error found", err);
                start();
        }
    });
}

function upvote(author,permlink){
    steem.broadcast.vote(postingKey, steemid, author, permlink, 10000, function(err, result) {
            console.log(err, result);
    });

}
function reply(author,permlink){
    const timeStr = new Date().toISOString().replace(/[^a-zA-Z0-9]+/g, '');
        const newParentPermlink = txData.parent_permlink.replace(/(-\d{8}t\d{9}z)/g, '');
        var replyPermlink = 're-' + txData.author.replace(/\./g, '') + '-' + txData.permlink + '-' + new Date().toISOString().replace(/-|:|\./g, '').toLowerCase();
    steem.broadcast.comment(
        postingKey,
        author,
        permlink,
        steemid,
        replyPermlink ,
        "",
        "HELLO!",
        '{"app":"test"}',
        function(err, result) {
            console.log(err, result);
        });


}