You'll learn:
A month ago, I published about the usefulness of the steem api with the discord platform, which those tutorials helped many colleagues who did not know how to implement those functions on that platform. A few days ago, a person asked me: could you develop tutorials of the steem API with HTML? And see me here, talking about the first of several tutorials about HTML and steem, which will are increase the difficulty as the tutorials develop.
This tutorial is divided into three parts:
Long before you start programming, you must download the only two requirements that are needed for the tutoring to take place; considering this, you can start quietly.
We will create a folder, which will contain the script index.html, this one is the main script of the tutorial.
Once the folder is created, we open visual studio core> file> open folder ...
We will create inside this folder an .html file, called index.
Like you are learning html, we will create the main structure that forever has an .html file, which is the one that appears next:
A small shortcut for not writing all structure is to write the exclamation mark "!", As the image shows
Then, once the structure is created, we will create a form, which will collect the necessary data to make the much appreciated vote. For this we will write in the body of the html script for create a form function.
!DOCTYPE html>
<html lang="es">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Steemit Simple Web Voter</title>
<link rel="shortcut icon" type="image/x-icon" href="Css/Steemit.png">
</head>
<body>
<form action="">
<fieldset>
<legend>Place Your Steemit Post</legend>
<input id="link" name="link" placeholder="Permlink" type="text" required>
<input type="text" name="author" id="author" placeholder="Author" required>
<input id="voter" name="voter" placeholder="Steemit voter" type="text" required>
<input id="Privatekey" name="Privatekey" placeholder="Privatekey" type="password" required>
<button type="button" onclick="">vote</button>
</fieldset>
</form>
</body>
</html>
As you can see in the script, we created 4 input fields, where each one has a different id and name, this specifically for when you want to know about it, it will be through the id or name.
To test the code, we use the extension that is requested to download in the requirements, once added to Visual Studio Core, we can activate it here:
When activated, we can try our work, we will have this:
From my point of view, a programmer ,you must create a pleasant interface, so that the user who uses it feels comfortable, what I try to achieve with this is , we must add the artistic touch that every web page has, for this we will use Css.
Stands for "Cascading Style Sheet." Cascading style sheets are used to format the layout of Web pages. They can be used to define text styles, table sizes, and other aspects of Web pages that previously could only be defined in a page's HTML. Source
Inside the folder that was created, we will create a new folder, called "Css" where we will create a .css script called "Styles.css".
Keeping this in mind, we need to inform the Html script that we are going to edit it visually, for this we must paste in the head of the following line of code <link rel="stylesheet" href="Css/Styles.css" type="text/css">, which will solve said problem. Once everything is configured, we will proceed to the encoding of the script.
To design a specific part of the web page, in css we have several options, we can edit it using the tags that contain it (such as <body> </body>, where everything inside the body is going to be affected ), by id or name; in this particular case, we will use the tags that contain it.
Then to make the design, what will be done in placing the name of the tag (without the <> </>) followed by two keys "{}" which will open and close the character of the said tag
will be like that
body{
font-family: Arial, Helvetica, sans-serif;
background-color: mediumseagreen;
text-align: center;
}
fieldset{
width: 420px;
border: none;
margin: 0 auto;
padding: 0 0 10px 0;
background-color: teal;
}
form{
background-color: teal;
width: 420px;
padding: 40px 10px 0 10px;
margin: 0 auto;
border-radius: 4px;
}
input{
display: block;
border: none;
margin: 20px auto;
width: 360px;
padding: 15px 0;
text-align: center;
background-color: cornsilk;
font-size: 18px;
border-radius: 4px;
}
legend{
width: 100%;
text-align: center;
font-size: 30px;
font-family: 'Times New Roman', Times, serif;
font-weight: bold;
color: black;
}
button{
display: block;
border: none;
margin: 20px auto;
width: 280px;
padding: 15px 0;
text-align: center;
background-color: mediumseagreen;
font-size: 18px;
border-radius: 4px;
cursor: pointer;
}
Each one is a feature that the css can have, if I explain all of them, the tutorial would be very, very long, so I leave you to homework for what each of the characteristics that i put, and if not you can understand, write to the discord, and I will gladly explain.
Now, once we have saved everything, we will try it to see how our website is.
But wait a moment, we have all the HTML part ready, but we need the most important of this tutorial: execute the function of the vote.
For this, we use the same function of votes that we have learned in previous tutorials of JS and Discord, we will create a <script> </ script> tag inside the Body of our HTML script, where we will introduce all the JS writing with steem.
keeping this in mind, our script will be like this
<script src="//cdn.steemjs.com/lib/latest/steem.min.js"></script>
<script>
function sub(){
var permlink = document.getElementsByName('link')[0].value;
var wif = document.getElementsByName('Privatekey')[0].value;
var voter = document.getElementsByName('voter')[0].value;
var author = document.getElementsByName('author')[0].value;
console.log(permlink + ' ' + wif + ' '+ voter +' '+ author);
var power = 10000;
steem.broadcast.vote(wif, voter, author, permlink, power, function(err, result) {
if(err){
document.getElementById("Result").innerHTML = "It was already voted";
}
if(result) {
document.getElementById("Result").innerHTML = "voted";
}
});
}
</script>
Important, so that when stepping on the voting button that function is executed, we must indicate it in the form, in this way <button type="button" onclick="sub()">vote</button>
Also, in the body we will create an H1 (it is a title, but in this case we will use it as the text to show when the vote is executed) with the id = "Result" and when the function is executed with JS, a text will be shown saying if it worked or it did not work.
We save everything and we try it.
Note: the permlink is what follows the username in the steemit link, you must separate it and paste only that part, for the next tutorial, it will be arranged so that you can place the entire link, and in turn, we will work with steemconnect
It is my first tutorial of the HTML and Steem series, but you can go through my steemit profile to know my other tutorials that I have published in utopian.