.jpeg)
Building an API for the Steem blockchain involves several tools and programming languages. Here is an outline of some of the tools and the code involved in building a Steem API:
Steem Libraries: To interact with the Steem blockchain, developers can use libraries such as Steem-js and Steem-python. These libraries provide an interface to the Steem blockchain's API and allow developers to perform actions such as creating and signing transactions, querying the blockchain, and more.
Node.js: Steem-js is a JavaScript library that can be used with Node.js to interact with the Steem blockchain. Node.js is a JavaScript runtime that allows developers to run JavaScript code on the server-side.
Python: Steem-python is a python library that allows developers to interact with the Steem blockchain using python.
Web3.js: Web3.js is a JavaScript library that allows developers to interact with Ethereum blockchain and its smart contracts. It can be used with Steem blockchain as well, as it's based on the same concepts.
Web3.py: It's the python version of web3.js, it allows developers to interact with Ethereum blockchain and its smart contracts.
MongoDB: MongoDB is a document-based database that can be used to store and retrieve data from the Steem blockchain.
Express.js: Express.js is a JavaScript framework that can be used with Node.js to build web applications and APIs.
Flask: Flask is a web framework for python, it can be used to build web applications and APIs.
When building a Steem API, developers would use these tools and programming languages to create a backend service that interacts with the Steem blockchain and provides a secure and user-friendly API for external applications to consume.
how to install them
I'll provide an example of how to use the Steem-js library, Node.js, and MongoDB to build a simple Steem API that retrieves the latest posts from the Steem blockchain.
Steem-js: To install the Steem-js library, you can use npm (Node Package Manager) by running the following command in your terminal:
npm install steem
Then in your JavaScript file you can use the library like this:
Code:-
const steem = require('steem');
steem.api.getContent('username', 'permlink', function(err, result) {
console.log(err, result);
});
Node.js: Node.js is required to run JavaScript on the server-side. You can download and install Node.js from the official website (https://nodejs.org/en/download/)
MongoDB: MongoDB is a document-based database that can be used to store data from the Steem blockchain. You can download and install MongoDB from the official website (https://www.mongodb.com/download-center/community) and then run the Mongo daemon by running the following command in your terminal:
Install this : - mongod
Express.js : Express.js is a JavaScript framework that can be used to build web applications and APIs. To install Express.js, you can use npm by running the following command:
Code: npm install express
Then in your JavaScript file you can use it like this:
Code:
const express = require('express');
const app = express();
app.get('/', function(req, res) {
res.send('Hello World!');
});
app.listen(3000, function() {
console.log('Example app listening on port 3000!');
});
In summary, building a Steem API involves using several tools and programming languages such as Steem libraries, Node.js, Python, Web3.js and Web3.py, MongoDB, and Express.js or Flask. Developers use these tools to create a backend service that interacts with the Steem blockchain, provides a secure and user-friendly API for external applications to consume, and also interacts with the smart contract on steem blockchain.