Smart contracts: Web and mobile apps?

[William]

Hi
For the sake of learning, I'd like to know more about smart contracts in the context of Web3 development, especially how they work with front-end web and mobile apps.

[Kaile]

By running automated code on a blockchain, Web3 smart contracts remove the need for middlemen. Front-end applications use APIs to communicate, enabling actions like token transfers and data storage. When a user triggers an event, the app sends a transaction, updating the blockchain via the smart contract. These contracts, deployed on platforms like Ethereum or Solana, ensure secure and decentralized connections between apps and the blockchain.