Smart Contracts Programming Tutorials, Guides & Best Practices

• Description: A decentralized key management solution for frictionless login to DApps.
• Key Features:
• Enables one-click login to DApps using OAuth providers like Google and Facebook.
• Securely manages private keys in a decentralized manner.
• Provides a seamless user experience for onboarding non-crypto users.
• Integrates easily with Ethereum and other blockchains.
• Website: Torus

• Description: A decentralized storage network built on top of IPFS.
• Key Features:
• Provides verifiable, decentralized storage with economic incentives.
• Allows users to rent out unused storage space.
• Integrates seamlessly with IPFS for decentralized file storage.
• Ideal for storing large datasets and DApp data.
• Website: Filecoin

• Hardhat will compile your contract and generate the necessary artifacts in the artifacts directory.

To deploy the ERC-20 token contract, you need to write a deployment script.

• Receive: Specifically handles Ether transfers.

// Fallback function
fallback() external payable {
    // Logic to execute when no other function matches
}

// Receive function
receive() external payable {
    // Logic to execute when contract receives Ether directly
}

Optimizing gas consumption in smart contracts can lead to substantial cost savings, especially for frequently executed contracts. Here are some strategies to consider:

1. Minimize Storage Writes

Steps to Connect MetaMask:

After testing your DApp locally, the final step is to deploy it to a public Ethereum test network like Ropsten or Kovan.