How to implement Ethereum gasless metatransactions by using EIP-712
I recently wrote an article about , an alternative currency system based on a unique ERC-20 token. I envisioned Karma Money as a closed system, where users can also pay transaction fees with karma. Building our own blockchain would be one way to make this a reality, but it is a challenging task. To ensure the security and credibility of the blockchain, we would need to establish the necessary infrastructure and a sufficiently large community.
karma_request_domain The actual structure that we send to MetaMask for signature is contained in the variable. The types block contains the type definitions. Here, the first element is the mandatory EIP712Domain definition, which describes the metadata. This is followed by the actual structure definition, which in this case is the TransferRequest. This is the structure that will appear in MetaMask for the user.
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