Metamask: Confirm the gray button on Metamask when trying to interact with the Uniswap contract
As an application developer at Blockchain Ethereum, it is essential to ensure that all interactions, including those with external contracts, are soft and perfect. However, a common problem was reported by users, especially when trying to run uniswap swaps using metamask. In this article, we will delve into the cause of the problem and provide a solution.
The question:
When trying to interact with a Uniswap contract using Metamask, users often find a gray confirm button. This problem arises because of how Metamask interacts with external contracts in the Ethereum network.
Why is Metamask shaking the confirm button?
After a more detailed inspection, it is clear that the interaction of Metamask with Uniswap contracts depends a lot on the erequest and Eth_SendTransactionfunctions. However, these functions are not configured correctly when interacting with external contracts.
The solution:
To solve this problem, we will need to update the metamask settings to ensure proper interaction with Uniswap contracts.
- Update the metamask configuration: Go to [metamask website] ( and browse to 'settings'>Advanced Settings’. Scroll down to the
Walletsection and click on the Advanced tab.
- Activate the external request functionality: On the ‘advanced’ tab, enable the alternation key
external request '. This will allow Metamask to request external functions, including external contracts such as Uniswap.
Additional steps:
To confirm that your changes are working as expected, follow these steps:
- Check the interaction of the Uniswap Contract: Start the Metamask application and try to interact with a Uniswap contract usingeth_request
or Eth_SendTransaction. If you find any errors, this may indicate problems with your configuration.
- Test the Local Development Environment: If you are developing locally, make sure your Ethereum network is configured correctly and the Uniswap contract has been implemented on the network.
Following these steps, users should be able to solve the confirm gray button problem by interacting with Uniswap contracts using Metamask.
