Bot Build #10 - Simple Automatic Curation Bot

Repository

e.g. https://github.com/steemit/steem-js

What Will I Learn?

In brief, write details of what the user is going to learn in a bullet list.

• You will learn how to create simple automatic curation bot

Requirements

• Node.JS, Here
• Steem Package (Install: npm install steem --save)

Difficulty

• Intermediate

Tutorial Contents

You will learn how to create simple automatic curation bot with SteemJS.

Curriculum

• Bot Build #1
• Bot Build #2
• Bot Build #3
• Bot Build #4
• Bot Build #5
• Bot Build #6
• Bot Build #7
• Bot Build #8
• Bot Build #9
• SteemJS Tutorials #1
• NodeJS Tutorials #1

The Tutorial

Step 1 - Setup Variables & Functions

we need 7 variables, account name & key(WIF), VOTE WEIGHT, TIMER, Next Round Timer (When The Next Round Starts In Hours), TAG (Category), LIMIT (Limit Of Loaded Posts).

Note: if you want to change the limit know that 80% of the times only one-two votes will stream to the blockchain.

const TAG = 'photography',
    LIMIT = 1; // if you want to change the limit know that 80% of the times only one-two votes will stream to the blockchain.
    
const ACC_NAME = 'guest123',
    ACC_KEY = '5JRaypasxMx1L97ZUX7YuC5Psb5EAbF821kkAGtBj7xCJFQcbLg',
    WEIGHT = 20*1000, //20% - 20*5 = 100, 100% per round.
    TIMER = 12, // NUMBER = MINUTES. [Normally = 12m]
    NEXTROUND = 0.5; //0.5 = Half Hour, NUMBER = HOUR.

Account Name & WIF Key = SteemJS Public User, everybody can use it.

---

now we need two functions, one for the vote and one for the bot.

first because at my previous tutorials I already used the streamVote function I'll just paste it and I'm not going to explain it.

function streamVote(author, permalink, weight) {
    steem.broadcast.vote(ACC_KEY, ACC_NAME, author, permalink, weight, function(err, result) {
        if(err)
            throw err;
        
        console.log('Voted Succesfully, permalink: ' + permalink + ', author: ' + author + ', weight: ' + weight / 1000 + '%.');
    });
}

and we need a function called StartCuration

function StartCuration(){

}

Step 2 - Create The Bot

• everything in this section works inside the function!

now we need to get the last posts that created at the blockchain with our TAG and LIMIT.

//Getting Latest Discussions Created by tag (1 post, current limit)
steem.api.getDiscussionsByCreated({tag: TAG, limit: LIMIT}, function(err, result){
    console.log(LIMIT + " Post(s) Loaded, Waiting "+TIMER+" minutes to vote.");
}

this function gets the latest discussions, posts that created in the steem blockchain.

and at the start, we send a comment to the console so we can know that the curation bot start.

---

Note: if you want to use Limit higher than 1 use a loop

result.forEach(function(res){
console.log(res);
});

and use res instead of result[0].

---

now we need a timer with our TIMER variable (minutes) and when it ends it will send the vote.

    setTimeout(function(){streamVote(result[0].author, result[0].permlink, WEIGHT);}, TIMER*60*1000);
    if(TIMER < 1){
        console.log(TIMER*60+"s Timer Start For The Post(Permalink): " + result[0].permlink);
    }else{
        console.log(TIMER+"m Timer Start For The Post(Permalink): " + result[0].permlink);
        }

so first we use setTimeout function, this function creates a timer and uses function and milliseconds(time).

at the function, we use the streamVote function with the author name, permalink and the voting weight.

at the time, 1000 milliseconds = 1 second
60 seconds = 60k ms
and TIMER = Minutes, 12 Minutes is really good time to get full curation, if you want to be sure change the timer to 20 minutes.

after the timer, we check if the TIMER variable is seconds or minutes, higher than one is minutes, less than one is seconds.
so for example 0.5 = 30 seconds.

and then we send a comment to the console so we can know that the timer started successfully.

---

now we just need to know when we start the next round.

if(NEXTROUND < 1){
    setTimeout(function(){console.log("Next Round In "+NEXTROUND*60+" Minutes...");}, (TIMER*60*1000) + 5*1000);
    setTimeout(function(){StartCuration();}, NEXTROUND*60*60*1000);
    }else{
    setTimeout(function(){console.log("Next Round In "+NEXTROUND+" Hours...");}, (TIMER*60*1000) + 5*1000);
    setTimeout(function(){StartCuration();}, NEXTROUND*60*60*1000);
}

we check if the next round timer is higher than a full hour, if it is we start a timer that equals to the time of the TIMER variable (when the vote streaming to the blockchain) and we take more 5 seconds and send comment to the bot and start new timer and at the function start the curation bot again.

and here we done!

results:

1 Post(s) Loaded, Waiting 0.1 minutes to vote.
6s Timer Start For The Post(Permalink): the-meaning-of-a-sunset-in-life-6226c0d21700d
Voted Succesfully, permalink: the-meaning-of-a-sunset-in-life-6226c0d21700d, author: nurulhusna1, weight: 2%.
Next Round In 30 Minutes...
   

and here we're done, I used 6 seconds timer to not wait too long.

Please! for the next tutorial I will be really happy if you can give me a suggestion for the next script/tutorial!

have a great day!

You can check the full work at my repl.it account and other bots that I create!

---

Proof of Work Done

the work made in Repl.it, https://repl.it/@lonelywolf22/Steem-Bots-Simple-Curation-Bot-V1-Done
user: https://repl.it/@lonelywolf22

GitHub: https://github.com/lonelywolf1
Utopian Tutorials GitHub Repository: https://github.com/lonelywolf1/Bot-Projects-SteemJS (This tutorial will add to the GitHub repository in the next few days!)