मुख्य सामग्री पर जाएँ

इस पृष्ठ का अनुवाद करने में मदद करें

🌏

आप इस पृष्ठ को अंग्रेज़ी में देख रहे हैं क्योंकि हमने अभी तक इसका अनुवाद नहीं किया है। इस सामग्री का अनुवाद करने में हमारी सहायता करें।

पृष्ठ का अनुवाद करें

इसमें कोई बग नहीं है!🐛

इस पेज का अनुवाद नहीं किया जा रहा है। हमने इस पेज को जानबूझकर अंग्रेज़ी में छोड़ा है।

ERC-777 Token Standard

अंतिम संपादन: , Invalid DateTime
पृष्ठ संपादित करें

Warning

ERC-777 is difficult to implement properly, due to its susceptibility to different forms of attack. It is recommended to use ERC-20 instead. This page remains as a historical archive.

Introduction?

ERC-777 is a fungible token standard improving the existing ERC-20 standard.

Prerequisites

To better understand this page, we recommend you first read about ERC-20.

What improvements does ERC-777 propose over ERC-20?

The ERC-777 provides the following improvements over ERC-20.

Hooks

Hooks are a function described in the code of a smart contract. Hooks get called when tokens are sent or received through the contract. This allows a smart contract to react to incoming or outgoing tokens.

The hooks are registered and discovered using the ERC-1820 standard.

Why are hooks great?

  1. Hooks allow sending tokens to a contract and notifying the contract in a single transaction, unlike ERC-20, which requires a double call (approve/transferFrom) to achieve this.
  2. Contracts that have not registered hooks are incompatible with ERC-777. The sending contract will abort the transaction when the receiving contract has not registered a hook. This prevents accidental transfers to non-ERC-777 smart contracts.
  3. Hooks can reject transactions.

Decimals

The standard also solves the confusion around decimals caused in ERC-20. This clarity improves the developer experience.

Backwards compatibility with ERC-20

ERC-777 contracts can be interacted with as if they were ERC-20 contracts.

Further Reading

EIP-777: Token Standard

क्या यह लेख सहायक था?