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smart contract student crud operation
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‎.env.example

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INFURA_KEY="xxxxxx"
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PRIVATE_KEY=""
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ACCOUNT= "xxxxxxxxx"

‎.gitignore

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build/
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# Created by https://www.toptal.com/developers/gitignore/api/node,macos
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# Edit at https://www.toptal.com/developers/gitignore?templates=node,macos
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### macOS ###
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# General
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.DS_Store
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.AppleDouble
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.LSOverride
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# Icon must end with two \r
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Icon
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# Thumbnails
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._*
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# Files that might appear in the root of a volume
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.DocumentRevisions-V100
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.fseventsd
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.Spotlight-V100
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.TemporaryItems
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.Trashes
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.VolumeIcon.icns
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.com.apple.timemachine.donotpresent
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# Directories potentially created on remote AFP share
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.AppleDB
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.AppleDesktop
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Network Trash Folder
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Temporary Items
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.apdisk
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### macOS Patch ###
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# iCloud generated files
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*.icloud
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### Node ###
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# Logs
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logs
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*.log
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# vuepress v2.x temp and cache directory
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.temp
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.cache
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# Docusaurus cache and generated files
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.docusaurus
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# Serverless directories
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.serverless/
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.yarn/build-state.yml
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.yarn/install-state.gz
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.pnp.*
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### Node Patch ###
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# Serverless Webpack directories
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.webpack/
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# Optional stylelint cache
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# SvelteKit build / generate output
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.svelte-kit
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# End of https://www.toptal.com/developers/gitignore/api/node,macos

‎.npmignore

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src
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tsconfig.json
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tslint.json
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.prettierrc

‎.prettierrc

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{
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"printWidth": 120,
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"trailingComma": "all",
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"singleQuote": true
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}

‎LICENSE

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‎README.md

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# simple-Dapp-typescript
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This is a basic CURD decentralized application in typescript
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# Dapp in typescript
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**A Create Your First dAPP On ethereum**
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#### AUTHOR:
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- [Vinod](https://github.com/vinodnextcoder "vinods's github profile")
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#### DESCRIPTION:
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This repository contains a source code to create simple CURD application and smart contract code.
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#### Setup
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- Follow this [Article](https://cmjagtap.medium.com/create-your-first-dapp-on-ethereum-6eb50b4083f2) to create a decentralized application.
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# Introduction
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```ts
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In this article, we are going to build a simple CRUD decentralized application on theEthereum blockchain. Also will create a CRUD smart contract for the sameapplications. This is a practical hands-on article.
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Details process https://medium.com/geekculture/create-your-first-dapp-on-ethereum-6eb50b4083f2
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- 1.Basic understanding of solidity or general programming.
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- 2.Metamask extension on chrome or firefox. (To connect withweb3)
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- 3.Basic understanding of Web3.
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- 4. Wallet on metamask with some ether(coins) for a ropsten network.
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- 5. Nodejs or javascript understanding.
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```
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## Smart Contract Deployment
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```
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This is a simple curd smart contract, which deals with students’ data.
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Let’s deploy the contract in a remix environment
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First, navigate to address https://remix.ethereum.org/
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Add new curd.sol
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file and copy-paste the code from the repository.
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From the left side click on the 3rd button deployment window will appear of metamask
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```
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# Setup Steps
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```
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Smart contract deployment on ropsten network
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First, create an account on https://infura.io get infra key
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Testing of a smart contract.
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The architecture of a decentralized application.
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Build the decentralized application (dAPP) to interact with the blockchain.
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Run and test the application
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get abi and contract address from https://remix.ethereum.org/
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Run commands nodejs
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```
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## Installation
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```
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npm install
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```
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## Run
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```
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Step-1
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npx ts-node src/index.ts
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###################################
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Insert Record uncomment this linse
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obj.createStudent('Vinod','MSc');
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comment
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obj.readStudent(0);
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Step- ooutput
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{
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from: '0x8aeaexxxxxxxxxxxxxxxxxxxxxx',
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gasUsed: 101374,
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logs: [],
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logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
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status: true, to: '0x83977bf3e9xxxxxxxxxxxxxxxx', transactionHash: '0x37169068b6606193XXXXXXXXXXXXXXXXXXXXX',
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transactionIndex: 25,
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type: '0x0'
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}
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----------------------------------------------------------
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Step-2 Reading record
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npx ts-node src/index.ts
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###################################
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To read record
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// comment this line in the index file
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---->> obj.createStudent('Vinod','MSc');
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// uncomment this lin
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obj.readStudent(0);
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```
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## License
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MIT License

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