A PoC Project on Public Blockchain Network
Full video presentation by IBM is available at Youtube.
This project is a PoC-level public blockchain technology-based solution on eSIM. This project will cover a basic overview of eSIM functionality scopes. Generally, we will cover from the Administration level, in which eSIM identity will be tokenized and distributed according to the imported/manufactured phone's IMEI number. Then we will cover from the telecommunication mobile network operator's perspective. Where network operator's MNO-Communication-Profile can be easily managed from the consumer level by mapping with the eSIM identity. In here we can manage an immutable ledger of Consumer's mobile network switching records to keep track of security and monetary purpose. After that, we will cover how the IoT devices interact with the device owners (Consumer SIM and M2M SIM), how their networks are operating with the eSIM, and how a single owner of multiple IoT devices can be identified with a web3 token with Fractional Ownership with maximum gas cost efficiency.
First create the local environment and initialize the node package manager.
Install node package manager
npm install
Setup the environment using npm ...
npm init –yes
Installing HardHat: Ethereum development environment.
Note: Some issues at latest version
npm install --save-dev hardhat@2.9.9
View the HardHat instructions: npx hardhat
Install testing component (https://nomic.foundation/):
npm install --save-dev @nomiclabs/hardhat-ethers ethers @nomiclabs/hardhat-waffle ethereum-waffle chai
Add all dependencies to your environment by using:
npm install
This command will compile Solidity Contract files into JSON file:
npx hardhat compile
This command will execute the scripts of unit test:
npx hardhat test
This command will deploy the network at Hardhat local network.
npx hardhat deploy scripts/deploy.js
To test the network with Ganache
npx hardhat run ./scripts/deploy.js --network ganache
To test the network with Ropsten and Alchemy API
npx hardhat deploy scripts/deploy.js --network ropsten
For creating a new Next.js app I am using create-next-app, which sets up everything automatically for us. To create a project, run:
npx create-next-app@latest --typescript
After the installation is complete, to start the development server on http://localhost:3000 run the given command:
npm run dev
To ensure the security in three individual tires I am using API in the middle of our Blockchain ecosystem and Front-end. And to ensure security I am introducing JWT in our API layer.
npm i jsonwebtoken
To use JWT in type-specific, this package contains type definitions for JSON web token
npm install --save @types/jsonwebtoken --save-dev
For API development and testing, I am also using the Swagger tools suite. For that, I have installed the following packages.
npm i --save-dev @types/swagger-jsdoc
npm i --save-dev @types/swagger-ui-express
Then I installed the next-swagger-doc (TS) package with the following command. And followed the rest of the instructions from this link: https://www.npmjs.com/package/next-swagger-doc
npm i next-swagger-doc
NOTE: To view the Swagger UI: http://localhost:3000/api-doc
For coding style and conventions we will follow the official Solidity style guide.
- https://github.com/fravoll/solidity-patterns
- https://dev.to/mudgen/
- https://github.com/aavegotchi/aavegotchi-contracts/tree/master/contracts/Aavegotchi
- https://etherscan.io/blocks
- https://app.compound.finance/#vote
- https://docs.soliditylang.org/en/v0.8.17/introduction-to-smart-contracts.html#the-ethereum-virtual-machine
- https://hardhat.org/hardhat-runner/docs/getting-started#overview
- https://docs.openzeppelin.com/contracts/3.x/erc1155
- https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts
- https://ethereum-waffle.readthedocs.io/en/latest/matchers.html
- https://github.com/Tahmeed156/property-dapp/blob/master/src/contracts/Registry.sol
- https://nomic.foundation/
- https://nextjs.org/docs
- https://www.youtube.com/watch?v=T9kYuBcOnjI
- https://ensarseker1.medium.com/is-more-secure-and-stable-communication-possible-by-using-blockchain-technology-for-esim-b99225ec4675
- NomicFoundation/hardhat#3201
- https://www.gemini.com/cryptopedia/what-is-a-liquidity-pool-crypto-market-liquidity
- https://docs.soliditylang.org/en/v0.8.14/style-guide.html
- https://hackernoon.com/hacking-solidity-contracts-using-txorigin-for-authorization-are-vulnerable-to-phishing
- https://cryptomarketpool.com/data-types-in-solidity-smart-contracts/
- https://medium.com/coinmonks/gas-optimization-in-solidity-part-i-variables-9d5775e43dde
- https://www.npmjs.com/package/jsonwebtoken
- https://www.npmjs.com/package/@types/jsonwebtoken
- https://www.npmjs.com/package/next-swagger-doc