Deploying contract using hardhat and foundry

The eSpace Testnet allows anyone to deploy a smart contract on eSpace. In this tutorial, you will learn how to deploy a contract on eSpace Testnet using common tools for developing on Ethereum. This demo repo illustrates contract deployment with Hardhat and Foundry.

Before you start deploying the contract, you need to request test tokens from a eSpace faucet.

Deploy contracts with Hardhat

1. If you haven't already, install nodejs and yarn.

2. Clone the repo and install dependencies:

   git clone https://github.com/conflux-fans/espace-contract-guide
   cd espace-contract-guide
   yarn install

3. Create a .env file following the example .env.example in the root directory. Change PRIVATE_KEY to your own account private key in the .env.

4. Run yarn compile to compile the contract.

5. Run yarn deploy:eSpaceTestnet to deploy the contract on the eSpace Testnet.

6. Run yarn test for hardhat tests.

Deploy contracts with Foundry

1. Clone the repo:

   git clone https://github.com/conflux-fans/espace-contract-guide
   cd espace-contract-guide

2. Install Foundry:

   curl -L https://foundry.paradigm.xyz | bash
   foundryup

3. Run forge build to build the project.

4. Deploy your contract with Foundry:

   forge create --rpc-url https://evmtestnet.confluxrpc.com \
     --value <lock_amount> \
     --constructor-args <unlock_time> \
     --private-key <your_private_key> \
     --legacy \
     contracts/Lock.sol:Lock
   • <lock_amount> is the amount of test CFX to be locked in the contract. Try setting this to some small amount, like 0.0000001ether.&#x20
   • <unlock_time> is the Unix timestamp after which the funds locked in the contract will become available for withdrawal. Try setting this to some Unix timestamp in the future, like 1730390400 (this Unix timestamp corresponds to October 1, 2024).

   Por ejemplo:

   forge create --rpc-url https://evmtestnet.confluxrpc.com \
     --value 0.00000000002ether \
     --constructor-args 1696118400 \
     --private-key 0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1 \
     --legacy contracts/Lock.sol:Lock

Questions and Feedback

Thank you for participating in and developing on the eSpace Testnet! If you encounter any issues, join our Discord and ask us in it.