Deep Dive into CosmWasm Contract Standards: CW20, CW721, CW4, and CW3
Deep Dive into CosmWasm Contract Standards: CW20, CW721, CW4, and CW3 CosmWasm provides several smart contract standards for different use cases in the Cosmos ecosystem. In this guide, we will explore four key standards: CW20, CW721, CW4, and CW3. These standards enable developers to create and manage fungible tokens, non-fungible tokens (NFTs), group memberships, and multisig wallets, respectively. CW20: Fungible Token Standard The CW20 standard is the equivalent of ERC20 in the Ethereum ecosystem. It defines a standard interface for fungible tokens in the Cosmos ecosystem. This standard allows for the creation, transfer, and management of fungible tokens within a CosmWasm-based blockchain. Structure Key Components: Messages (Msg): Define the actions that can be performed, such as minting, transferring, and burning tokens. State: Defines the data structures for storing token balances, allowances, and metadata. Query: Provides functions to query token information like balance, total su...
