Web3 Certifier

About

Web3 Certifier is an open-source certification platform which offers exams for the verification of someone's knowledge in a wide range of subjects.

How it works

Web3 Certifier is based on Blockchain technology, and all the data involved in the certification process is stored on-chain.

AI Agent

There is a discord bot with AI capabilities that can talk to users in natural language. This agent can give recommendations based on someone's interests and summarize the skills of a user based on their certificates.

Requirements

Before you begin, you need to install the following tools:

• Node (>= v18.17)
• Yarn (v1 or v2+)
• Git
• Foundryup
• Python 2.7+
• Node.js 23+
• pnpm

Note for Windows Users: WSL 2 is required.

How to run this repository

To run the AI Agent:

1. Go to the packages/agent directory and create a .env file based on the .env.example file.
2. From the root directory execute the command:
   • yarn install
3. Then from the packages/agent directory execute the commands:
   • pnpm i
   • pnpm build
   • pnpm start

To run the front-end:

1. Go to the packages/nextjs directory and create a .env file based on the .env.example file.
2. From the root directory execute the commands:
   • yarn install
   • yarn start

To deploy the smart contract:

1. Go to the packages/foundry directory and create a .env file based on the .env.example file.
2. From the packages/foundry directory execute the commands:
   • yarn deploy --network sepolia
   • yarn verify --network sepolia or forge verify-contract 0x8c008619305dC27009d0c81E204C30F7c9726E9B contracts/Certifier.sol:Certifier --compiler-version "0.8.24+commit.e11b9ed9" --chain 42161 --constructor-args 0x000000000000000000000000694aa1769357215de4fac081bf1f309adc325306 --watch --etherscan-api-key <key>
3. For deployments you need to change the "DEPLOY_CONTRACT", "UPGRADE_CERTIFIER_CONTRACT", "UPGRADE_REWARD_FACTORY_CONTRACT" and the proxy addresses in the .env file.
4. To verify the reward contract do: make deploy-reward-{network}. Look at Makefile!

To redeploy the subgraph:

Delete the packages/the-graph directory and go to https://thegraph.com/studio/. There you can follow the instructions to create a new subgraph. Use the implementation contract and then change the 'address' and the 'startblock' at the subgraph.yaml file to the proxy contract address and startblock. Then execute 'graph deploy certifier-celo'.

To see file sizes:

Run: ANALYZE=true npm run build from the packages/nextjs directory.

NOTES
forge install openzeppelin/openzeppelin-contracts-upgradeable --no-commit forge install openzeppelin/openzeppelin-contracts@v5.3.0 --no-commit exam for submission testing: 61 exam for reward testing: 40 exam submitted, corrected not claimed NFT yet: 61 on sepolia Note: test with exam id 37/40 on Celo and id 69 on Sepolia