Metamask: MetaMask incorrectly estimates 100,000 gas for ERC20 transfer. Why?

Understanding Metamask gas limit for ERC20 transfers

Metamask, the popular expansion of the Ethereum browser and the DAPP platform, relies on its API to facilitate the transactions of the Ethereum blockchain. One of these APIs is the ERC20.Transfer () method that allows users to transfer ERC-20 markers (eg DAI, USDC) between portfolios or contracts. In some cases, however, Metamask may incorrectly evaluate the cost of gas for ERC20 transfer, leading to improper transactions processing.

In this article, we will deepen why Metamask limits the estimate of the gas limit to 100,000 and will give an idea of ​​the complexity of ERC20.Transfer () that contribute to these mistakes.

Why does Metamask limit ERC20 .transfer () to 100,000?

The reason for the Metamask Gas Estimated Gas for ERC20.Transfer () is a combination of factors:

• Gaza evaluation algorithm : Metamask uses an algorithm from the Ethereum Gas Gain (EGE) library, which estimates gas costs based on various factors such as network overload, transaction complexity and available gas on the network.

• Gaza prices : gas prices may hesitate over time due to changes in network congestion, miners’ behavior or other market factors. As a result, Metamask can adjust its estimated gas limit up to account for these price increases.

• Complexity of transaction : ERC20.Transfer () Includes multiple transactions (for example, creating a new call contract and sending tokens), which can increase the complexity of the transaction. To comply with this complexity, Metamask may accept that the total price of gas will be higher than the sum of the individual transaction costs.

The correct estimated gas limit for ERC20 transfers

Unlike its incorrect estimate of 100,000 gas, the actual price of gas for ERC20.Transfer () transaction can range from about 145,000 to over 300,000 gas units. This is because the Metamask algorithm takes into account the additional complexities associated with the transfer of markers to multiple contracts.

Why does this matter?

Incorrectly evaluating gas limits can lead to several pieces, including:

* Transaction failure : If the user tries to transfer tokens that exceed their estimated gas limit, the transaction will fail and may not receive their funds.

* Slowing or missed transactions

: In some cases, the Metamask algorithm may evaluate the high gas costs, but the actual gas required for the transaction is a lower. This can lead to delayed or missed transactions, which can have significant consequences for the user’s experience.

Conclusion

The 100,000 Metamask Gas Lime for ERC20.Transfer () is incorrect due to reading an algorithm, which takes into account factors such as network overload and gas prices fluctuations. In order to avoid these mistakes, users should always check their transaction data after execution to ensure that the actual gas price corresponds to their estimated value.

Understanding how Metamask evaluates the restrictions on gas and recognizing the complexity involved in `ERC20.Transfer () transactions, users can take steps to mitigate these problems and ensure a smooth user experience of Ethereum blockchain.

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