fix: support EIP-1559

[roy1210]

• add maxPriorityFeePerGas for writing contract function
  Demo: https://lockdrop-ui-beta-debp0tsiv-roy1210.vercel.app/#/lock-form

=Before=

[roy1210]

Hi @bobo-kovacevic
This is the deployed demo URL: https://lockdrop-ui-beta-debp0tsiv-roy1210.vercel.app/#/lock-form

Can you help to check with using the latest version of metamask (Supports EIP-1559) to call the contract function? I can't check it since the UI only allows to call the function by user who locked ETH long times ago. Also, please help to check if max priority fee has set as 2gwei.

It looks something like this but just 2gwei for max priority fee

[roy1210]

I've set maxPriorityFeePerGas as 2gwei as hard coding, but ideally get the value dynamically.
I recommend to use blocknative API to get the latest maxPriorityFeePerGas. You can use this API with free account.

Usually I just get confidence: 80

[roy1210]

Hi @hoonsubin @bobo-kovacevic
Any update for this PR? Thanks!

[bobo-k2]

Hi @roy1210 I apologize for late response. We will test the feature this week.

[bobo-k2]

@roy1210 I tried to test your changes on my machine, but unfortunately this is not possible yet because of Ganache lacking London hardfork support. There is a PR to fix that trufflesuite/ganache#1135. I will try again when they enable London support.

[roy1210]

Hi @bobo-kovacevic

I tried to test your changes on my machine,

I see. Would you mind letting me reproduce this part on my machine? I'd like to debug if possible.
My telegram ID: @Roy_Shoe_Kure

[roy1210]

Hi @bobo-kovacevic
The PR trufflesuite/ganache#1135 has been merged a while ago. Could you update, please?

[bobo-k2]

Hi @bobo-kovacevic
The PR trufflesuite/ganache#1135 has been merged a while ago. Could you update, please?

Hi @roy1210 thank you for update update about the PR. I will take a look. Also, I will contact you on Telegram regarding debugging