Arashtad

In this video, we will learn about ERC721 Standard smart contract. The ERC721 standard is a set of rules and guidelines for creating non-fungible tokens (NFTs) on the Ethereum blockchain. ERC721 stands for "Ethereum Request for Comments 721," and it specifies the interface and behavior that NFT contracts should follow to ensure compatibility and interoperability. Unlike fungible tokens (such as cryptocurrencies), NFTs are unique and indivisible digital assets that represent ownership or proof of authenticity of a specific item, such as artwork, collectibles, or in-game assets. The ERC721 standard defines functions for token creation, ownership transfer, querying token metadata, and managing approvals for delegated token transfers. It enables developers to create and interact with NFTs in a standardized way, facilitating the development of NFT marketplaces, decentralized applications (dApps), and other NFT-related services on the Ethereum network. Github Repository: htt...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about NFT smart contract. The general idea behind the "MyNFT" smart contract is to provide a basic implementation of the ERC721 non-fungible token (NFT) standard. The contract inherits from the ERC721 contract and includes functionalities for creating and managing NFTs. It uses the Counters library to generate unique token IDs and keep track of the current count. The contract allows users to create an NFT by calling the "createNFT" function, which mints a new token, assigns it to the specified recipient address, and associates a token URI (Uniform Resource Identifier) with it. The token URI can be used to retrieve metadata ...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about Openzeppelin smart contract. The general idea behind the "MyToken" smart contract from OpenZeppelin is to provide a standardized implementation of the ERC20 token standard. It inherits from the IERC20 interface and includes all the necessary functions and mappings required for managing a token's balances, allowances, transfers, approvals, minting, and burning. The contract utilizes the SafeMath library to prevent overflows and underflows in mathematical operations. It allows users to create a custom token by specifying its name, symbol, and decimals. The contract maintains a mapping of token balances for each address and enab...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about Openzeppelin smart contract. The general idea behind the "MyToken" smart contract from OpenZeppelin is to provide a standardized implementation of the ERC20 token standard. It inherits from the IERC20 interface and includes all the necessary functions and mappings required for managing a token's balances, allowances, transfers, approvals, minting, and burning. The contract utilizes the SafeMath library to prevent overflows and underflows in mathematical operations. It allows users to create a custom token by specifying its name, symbol, and decimals. The contract maintains a mapping of token balances for each address and enab...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about Openzeppelin smart contract. The general idea behind the "MyToken" smart contract from OpenZeppelin is to provide a standardized implementation of the ERC20 token standard. It inherits from the IERC20 interface and includes all the necessary functions and mappings required for managing a token's balances, allowances, transfers, approvals, minting, and burning. The contract utilizes the SafeMath library to prevent overflows and underflows in mathematical operations. It allows users to create a custom token by specifying its name, symbol, and decimals. The contract maintains a mapping of token balances for each address and enab...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about Openzeppelin smart contract. The general idea behind the "MyToken" smart contract from OpenZeppelin is to provide a standardized implementation of the ERC20 token standard. It inherits from the IERC20 interface and includes all the necessary functions and mappings required for managing a token's balances, allowances, transfers, approvals, minting, and burning. The contract utilizes the SafeMath library to prevent overflows and underflows in mathematical operations. It allows users to create a custom token by specifying its name, symbol, and decimals. The contract maintains a mapping of token balances for each address and enab...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about Openzeppelin smart contract. The general idea behind the "MyToken" smart contract from OpenZeppelin is to provide a standardized implementation of the ERC20 token standard. It inherits from the IERC20 interface and includes all the necessary functions and mappings required for managing a token's balances, allowances, transfers, approvals, minting, and burning. The contract utilizes the SafeMath library to prevent overflows and underflows in mathematical operations. It allows users to create a custom token by specifying its name, symbol, and decimals. The contract maintains a mapping of token balances for each address and enab...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about Openzeppelin smart contract. The general idea behind the "MyToken" smart contract from OpenZeppelin is to provide a standardized implementation of the ERC20 token standard. It inherits from the IERC20 interface and includes all the necessary functions and mappings required for managing a token's balances, allowances, transfers, approvals, minting, and burning. The contract utilizes the SafeMath library to prevent overflows and underflows in mathematical operations. It allows users to create a custom token by specifying its name, symbol, and decimals. The contract maintains a mapping of token balances for each address and enab...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about Openzeppelin smart contract. The general idea behind the "MyToken" smart contract from OpenZeppelin is to provide a standardized implementation of the ERC20 token standard. It inherits from the IERC20 interface and includes all the necessary functions and mappings required for managing a token's balances, allowances, transfers, approvals, minting, and burning. The contract utilizes the SafeMath library to prevent overflows and underflows in mathematical operations. It allows users to create a custom token by specifying its name, symbol, and decimals. The contract maintains a mapping of token balances for each address and enab...

ERC-20 Token Smart Contract (Part-3): Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about ERC-20 token smart contract. The general idea behind the "ERC20Token" smart contract is to provide a standardized implementation of a fungible token on the Ethereum blockchain. This contract allows for the creation and management of tokens with a specific name, symbol, decimals, and total supply. Users can transfer tokens from one address to another, and the contract ensures that the sender has sufficient balance. It also includes functionality for approving and managing allowances, which allows third-party addresses to spend tokens on behalf of the token owner within a specified limit. ...

Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about ERC-20 token smart contract. The general idea behind the "ERC20Token" smart contract is to provide a standardized implementation of a fungible token on the Ethereum blockchain. This contract allows for the creation and management of tokens with a specific name, symbol, decimals, and total supply. Users can transfer tokens from one address to another, and the contract ensures that the sender has sufficient balance. It also includes functionality for approving and managing allowances, which allows third-party addresses to spend tokens on behalf of the token owner within a specified limit. By adhering to the ERC-20 token standard, thi...

ERC-20 Token Smart Contract (Part-1): Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about ERC-20 token smart contract. The general idea behind the "ERC20Token" smart contract is to provide a standardized implementation of a fungible token on the Ethereum blockchain. This contract allows for the creation and management of tokens with a specific name, symbol, decimals, and total supply. Users can transfer tokens from one address to another, and the contract ensures that the sender has sufficient balance. It also includes functionality for approving and managing allowances, which allows third-party addresses to spend tokens on behalf of the token owner within a specified limit. By ad...

Crowdfunding Smart Contract: Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about crowdfunding smart contract. This CrowdFunding smart contract provides a decentralized platform for creators to propose projects and receive financial support from backers. It facilitates transparency and trust among participants, allowing for the collective funding of initiatives and promoting the spirit of crowdfunding. Github Repository: https://github.com/arashtad/Arashtad-Smart-Conrtacts Watch The Video on Youtube https://blog.arashtad.com/updates/14-solidity-crowdfunding/?feed_id=10363&_unique_id=671c74fc0d9ec

Market Place Smart Contract: Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about market place smart contract. The provided smart contract represents a marketplace contract where users can create and sell products. The "marketPlace" contract includes a struct called "Product" that defines the properties of a product, such as an ID, name, price, seller's address, and a flag indicating whether the product is sold or not. Github Repository: https://github.com/arashtad/Arashtad-Smart-Conrtacts Watch The Video on Youtube https://blog.arashtad.com/updates/13-solidity-market-place/?feed_id=10347&_unique_id=671bcc5950af8

Token Factory: Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about factory smart contract. The "TokenFactory" contract enables the dynamic creation of ERC-20 token contracts with different configurations or parameters. By invoking the "createToken" function, users can generate new tokens by specifying the desired name, symbol, and total supply. This pattern enhances code reusability and simplifies the process of creating and managing multiple token contracts within a decentralized application or ecosystem. Github Repository: https://github.com/arashtad/Arashtad-Smart-Conrtacts Watch The Video on Youtube https://blog.arashtad.com/updates/12-solidity-token-factory/?...

Factory Contract: Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about factory smart contract. In Solidity, a factory is a design pattern that enables the dynamic creation of contracts. It serves as a contract that generates and deploys new instances of a specific contract type. The factory pattern provides a flexible and efficient way to create multiple instances of contracts with varying parameters or configurations. Github Repository: https://github.com/arashtad/Arashtad-Smart-Conrtacts Watch The Video on Youtube https://blog.arashtad.com/updates/11-solidity-factory/?feed_id=10315&_unique_id=67172ede8d38d

Escrow Smart Contract: Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about escrow smart contract. The Escrow smart contract represents a basic escrow arrangement between a buyer, seller, and arbiter. Upon deployment of the contract, the buyer's address is set as the contract deployer, and the addresses of the seller and arbiter are provided as constructor arguments. The contract includes a boolean variable called releaseFunds, which indicates whether the funds should be released to the seller or refunded to the buyer. The contract provides two functions: releaseAmount() and refundAmount(). The releaseAmount() function can be called by the buyer or arbiter to authorize the release of fun...

Simple Token Smart Contract: Welcome to this brand new course about blockchain. In this course and the next ones we will make you familiar with all you need to know about blockchain and also will teach you someof the latest blockchain coding skills, So that you can enter the fascinating world of decentralized applications. In this video, we will learn about simple token smart contract. The simpleToken smart contract represents a basic implementation of a token on the Ethereum blockchain. It utilizes a mapping called balances to keep track of the token balance for each address. The contract includes an event called Transfer which is emitted whenever a transfer of tokens occurs. Upon deployment of the contract, the initial supply of tokens is assigned to the contract deployer's address. The contract provides a transfer function that allows users to transfer tokens from their account to another specified address. It verifies that the sender has sufficient funds before deducting ...

Simple Vote Smart Contract (Part-2): Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about simple vote smart contract. The Voting smart contract provides a simple and decentralized way to conduct voting on the Ethereum blockchain. It maintains two important mappings: hasVoted and voteCount. The hasVoted mapping keeps track of whether an address has already cast a vote, preventing duplicate voting. The voteCount mapping stores the number of votes received by each candidate, with the candidate's name being the key. The contract exposes a vote function that allows users to cast their vote for a specific candidate by providing the candidate's name as an argument. The function verifies if ...

Simple Vote Smart Contract Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about simple vote smart contract. The Voting smart contract provides a simple and decentralized way to conduct voting on the Ethereum blockchain. It maintains two important mappings: hasVoted and voteCount. The hasVoted mapping keeps track of whether an address has already cast a vote, preventing duplicate voting. The voteCount mapping stores the number of votes received by each candidate, with the candidate's name being the key. The contract exposes a vote function that allows users to cast their vote for a specific candidate by providing the candidate's name as an argument. The function verifies if the sender ...

Payment Smart Contract: Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about simple payment smart contract. The Payment Contract is a smart contract designed to facilitate payments between two parties on the Ethereum blockchain. It includes variables to store the addresses of the payer and payee, as well as the payment amount. Upon deployment, the constructor initializes the payer as the address of the deploying account and the payee and payment amount are provided as arguments. The contract provides a function called makePayment() which can be called by the payer to initiate the payment. It ensures that only the payer can make the payment and checks if the contract has sufficient balance to...

Simple Storage Smart Contract: Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will learn about simple storage smart contract. The Solidity Simple Storage smart contract is a basic example of a smart contract that demonstrates how to store and retrieve data on the Ethereum blockchain. It utilizes a single variable called data to hold an integer value, which can be updated and retrieved by the contract's functions. The contract includes a setter function setData that allows users to modify the value of data, and a getter function getData to retrieve the current value. By deploying and interacting with this contract, users can gain a better understanding of the fundamental concepts of state variables, ...

Getting Started with Solidity: Welcome to this brand new course about blockchain. In this course, and in the upcoming ones, we will make you familiar with everything you need to know about blockchain. We will also teach you some of the latest blockchain coding skills so that you can enter the fascinating world of decentralized applications. In this video, we will get started with Solidity on Remix IDE. This IDE is browser-based and enables you to easily write, debug, compile, and deploy your smart contracts on different Testnets, Mainnets, and local networks. Github Repository: https://github.com/arashtad/Arashtad-Smart-Conrtacts Watch The Video on Youtube https://blog.arashtad.com/updates/4-getting-started-with-solidity/?feed_id=10203&_unique_id=671291c718b18

Introduction to Blockchain Welcome to this brand new course about blockchain. In this course and the next ones we will make you familiar with all you need to know about blockchain and also will teach you someof the latest blockchain coding skills, So that you can enter the fascinating world of decentralized applications. In this video, you will learn about different blockchain architectures And how blockchain systems work. Then you will become familiar with bitcoin and a proof of work consensus mechanism. Also you will understand the story behind smart contracts and decentralized applications. Watch The Video on Youtube https://blog.arashtad.com/updates/3-blockchain-intro/?feed_id=10187&_unique_id=6711e8df21e57

Introduction to blockchain Welcome to this brand new course about blockchain. In this course and the next ones we will make you familiar with all you need to know about blockchain and also will teach you someof the latest blockchain coding skills, So that you can enter the fascinating world of decentralized applications. In this video, you will learn about different blockchain architectures And how blockchain systems work. Then you will become familiar with bitcoin and a proof of work consensus mechanism. Watch The Video on Youtube https://blog.arashtad.com/updates/2-blockchain-theories/?feed_id=10171&_unique_id=6711403232a5c