Common Errors in DiamondSwap

When interacting with the DiamondSwap protocol, you may encounter some common errors. These errors often occur due to incorrect inputs, contract misconfigurations, or misunderstandings of how the protocol operates. Below is a list of common errors that developers and users might face while working with the DiamondSwap contracts, along with explanations and potential solutions for each.

1. INSUFFICIENT_LIQUIDITY

Error Description:

This error occurs when there is not enough liquidity in the pool to complete the swap or when removing liquidity. The protocol enforces that trades must maintain the constant product formula (x \cdot y = k), where (x) and (y) are the reserves of the two tokens. If the trade would cause one of the reserves to go below zero, this error is triggered.

Possible Causes:

• Attempting to swap a large amount of tokens when there isn’t enough liquidity in the pool.
• Removing more liquidity than available in the pool.

Solution:

• Check the current liquidity in the pool using the getReserves() function before attempting the trade.
• If removing liquidity, ensure that the amount you want to remove does not exceed the available liquidity.

2. INSUFFICIENT_INPUT_AMOUNT

Error Description:

This error occurs when the input amount of tokens provided for a swap is too low. The protocol requires that the input amount is sufficient to generate the desired output amount, taking into account the liquidity in the pool and any fees.

Possible Causes:

• The input amount of tokens is lower than expected due to price fluctuations.
• Slippage has reduced the effectiveness of the trade, causing the input amount to be insufficient.

Solution:

• Increase the input token amount to account for potential slippage.
• Set a higher amountInMin parameter when executing the swap to ensure that the input amount meets the required threshold.

3. INSUFFICIENT_OUTPUT_AMOUNT

Error Description:

This error occurs when the expected output amount of tokens is lower than the minimum output specified by the user. The protocol enforces that trades must meet a minimum output amount to protect against slippage and unfavorable price movements.

Possible Causes:

• Significant price changes during the execution of the swap.
• The output amount calculated by the protocol is less than the amountOutMin specified in the transaction.

Solution:

• Set a lower amountOutMin parameter to allow for more flexibility in the output amount.
• Monitor the pool’s price before executing the trade to reduce the risk of slippage.

4. EXPIRED

Error Description:

This error occurs when the transaction deadline has passed before the transaction was mined and included in a block. DiamondSwap transactions often include a deadline parameter to ensure that they are executed within a specific time frame, protecting against adverse price movements.

Possible Causes:

• The transaction took too long to be mined, and the deadline passed.
• The deadline parameter was set too close to the current time.

Solution:

• Set a longer deadline parameter when submitting the transaction to account for potential network delays.
• Resubmit the transaction with an updated deadline if the original transaction expired.

5. INSUFFICIENT_A_AMOUNT and INSUFFICIENT_B_AMOUNT

Error Description:

These errors occur during liquidity provision or removal when the actual amounts of tokens A or B received are lower than the minimum amounts specified by the user.

Possible Causes:

• The reserves in the pool have changed since the transaction was submitted, resulting in different amounts being required for the liquidity action.
• The amountAMin or amountBMin parameters were set too high, and the pool cannot satisfy the requested amounts.

Solution:

• Adjust the amountAMin and amountBMin parameters to be more flexible.
• Ensure that the pool’s reserves are stable before executing the liquidity operation to reduce the risk of receiving insufficient amounts.

6. REENTRANCY

Error Description:

This error is triggered when a function is called recursively in a way that could lead to unintended consequences, such as draining funds from the contract. The DiamondSwap protocol employs reentrancy guards to prevent these attacks.

Possible Causes:

• A function is attempting to reenter itself or another function that interacts with the same state variables.
• An external contract interacting with DiamondSwap is not designed to handle reentrancy safely.

Solution:

• Ensure that your smart contract code does not attempt to call functions that could lead to reentrancy.
• Review the contract’s logic to ensure that all external calls are made after state changes to mitigate reentrancy risks.

7. TRANSFER_FAILED

Error Description:

This error occurs when the transfer of tokens fails. This could happen due to a variety of reasons, including insufficient token balances or issues with the ERC20 token contract itself.

Possible Causes:

• Insufficient token balance in the caller’s address.
• The ERC20 token contract does not return a boolean value indicating success or failure, which is expected by the DiamondSwap protocol.

Solution:

• Check that the calling address has sufficient tokens to complete the transfer.
• Ensure that the ERC20 token contract adheres to the expected ERC20 standard, particularly regarding return values for transfers.

Conclusion

Understanding these common errors can help you troubleshoot and resolve issues when interacting with the DiamondSwap protocol. By carefully reviewing the error messages and adjusting your transactions accordingly, you can ensure a smoother experience when using DiamondSwap. If you continue to encounter issues, consider reviewing the DiamondSwap documentation or seeking support from the community.