How to create and deploy XinFin Smart Contracts?

Since its start in the blockchain realm in 2019, XinFin has facilitated the development of new decentralized applications. However, XinFin has been recognized for implementing smart contracts in an EVM-compatible manner.

The XinFin blockchain technology is based on smart contract capabilities. It is a widely held misconception that smart contracts are a novel concept that originated with the Ethereum blockchain technology. However, the notion of smart contracts was established in 1996 by computer scientist Nick Szabo, who coined the phrase and explained it as follows:

“A set of promises, specified in digital form, including protocols within which the parties perform on these promises.”

This article explicates the entire process to create and deploy the XinFin Smart Contracts. Let’s begin with fundamental steps involved in this process, as mentioned in the section below.

How can you create and deploy XinFin Smart Contracts?

To comprehend how XinFin executes smart contracts, it is necessary to first understand the execution environment.

XinFin is a blockchain platform compatible with the Ethereum Virtual Machine (EVM). EVM is used to run smart contracts created on the XinFin network. As the name implies, this is not a physical machine but a virtual one. EVM has fewer capabilities than a virtual machine; for example, it cannot create random numbers or conduct internet calls with a delay.

Because writing programmes in assembly language is incomprehensible, XinFin needs a programming language for EVM. XinFin uses the Solidity programming language to create smart contracts.

Now, let’s understand the process of developing and deploying XinFin Smart Contracts using Solidity. Below mentioned are the steps that will guide you in the process of creating and deploying the XinFin Smart Contracts.

Step 1

Installing all the Prerequisites

• The requirement of network for contracts’ running and deploying.
• Wallet CLI: Wallet CLI can be defined as the XDC Network’s wallet that is also the command line. Developers can take the assistance of wallet CLI while deploying the contracts on the layer of mainnet and can together execute other operations also.
• Chrome Extension of XinFin.
• XinFin serves both the purposes of a wallet and that of the XinFin browser. With the help of XinPay, you can connect with the dApps and the smart contracts without depending upon the installation of any blockchain or software. You will simply require adding the Chrome Extension of XinPay to your browser, submit XDC and create a wallet.
• Before you begin with writing the smart contracts, you should acquire a certain amount of the XDC tokens in the XinPay wallet you own.

Step 2

Wallet Creation with XinPay

First, install the XinPay in your Google Chrome browser and then continue by enabling it. After you have completed the installation of the XinPay, click on its icon, which is located on the top right of your browser.

After this, you will need to enter a password. Click on the create icon after entering the password. After you are done with creating your password, you will receive a confidential backup code that will take care of the data backup and the account restoration.

Step 3

Network Selection

In this step, you will select a network for the creation of your XinFin smart contracts. In this article, we are using the Apothem test network for the creation of smart contracts.

Step 4

Addition of a dummy XDC to the wallet

You will require a certain amount of dummy XDC in the XinPay wallet that you own for testing the smart contracts. For instance, if you have the need to test a contract with the help of a test network, choose that particular network, you will be able to view 0 XDC as the starting balance in your account.

For adding dummy XDC, you need to visit the faucet and then enter the XDC address you have. After doing this, you will get 1000 XDC for smart contracts’ testing. Once the dummy XDC is received in the XinPay wallet, you can then start with the process of smart contract creation and coding on XinFin Remix browser IDE in the solidity programming language.

Step 5

Writing Smart Contracts with XinFin Remix Editor

The XinFin Remix Browser IDE is used for small sized contracts’ writing. Below mentioned are some of the distinct features of the XinFin Remix Browser IDE:

• Highlighting the error and syntax
• A debugger that is already integrated
• Process of deploying to XinPay
• Analysis of static nature
• The environment of deployment and testing that is integrated in nature
• Functions that have injected web3 objects
• Constant checks for the names that have overlapping variables and unsafe codes, warnings which include the gas cost

Step 6

Creation of a .sol extension file

Continue by clicking on the plus button, which is located on the left side on the top, to create the .sol extension file after opening the XinFin Remix Browser. You will then choose a compiler version from the XinFin Remix for the process of compiling the Solidity XinFin smart contract code. For the creation of the XRC20 tokens, XRC20.sol is the standard template.

Step 7

Contract Deployment

This is the final step in the process of creating and deploying smart contracts. You will deploy your created smart contracts at the XinFin Apothem Test network. For that, you will have to click on the deploy button, which is located on the left of the Remix window. After doing this, wait till the transaction has been processed. Once the transaction is committed by you, you will be able to see the address of the smart contracts on the Remix Window.

First and foremost, all the XC20 tokens will be stored in the wallet that the user deploying the contract owns. To check the tokens in the wallet, you will have to go to the XinPay window. After that, click on the option to add tokens and insert the smart contract address and then click on ok. Here you will be able to view the total number of tokens.

Creating and deploying smart contracts with the assistance of XinFin Remix makes the entire process technically convenient. Although, there are a variety of distinct functions and tools that can be explored by us for writing, testing and deploying the XinFin Smart Contracts.