mirror of
https://github.com/0glabs/0g-chain.git
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66 lines
2.3 KiB
Markdown
66 lines
2.3 KiB
Markdown
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<!--
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order: 3
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-->
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# Messages
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Users can submit various messages to the evmutil module which trigger state changes detailed below.
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## MsgConvertERC20ToCoin
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`MsgConvertCoinToERC20` converts a Kava ERC20 coin to sdk.Coin.
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```protobuf
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service Msg {
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// ConvertERC20ToCoin defines a method for converting Kava ERC20 to sdk.Coin.
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rpc ConvertERC20ToCoin(MsgConvertERC20ToCoin) returns (MsgConvertERC20ToCoinResponse);
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}
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// MsgConvertERC20ToCoin defines a conversion from Kava ERC20 to sdk.Coin.
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message MsgConvertERC20ToCoin {
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// EVM 0x hex address initiating the conversion.
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string initiator = 1;
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// Kava bech32 address that will receive the converted sdk.Coin.
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string receiver = 2;
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// EVM 0x hex address of the ERC20 contract.
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string kava_erc20_address = 3;
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// ERC20 token amount to convert.
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string amount = 4 [
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(gogoproto.customtype) = "github.com/cosmos/cosmos-sdk/types.Int",
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];
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}
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```
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### State Changes
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- The `EnabledConversionPairs` param from `x/evmutil` is checked to ensure the conversion pair is enabled.
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- The initiator's ERC20 token from `kava_erc20_address` is locked by transferring it from the initiator's 0x address to the `x/evmutil` module account's 0x address.
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- The same amount of sdk.Coin are minted for the corresponding denom of the `kava_erc20_address` in the `EnabledConversionPairs` param. The coins are then transferred to the receiver's Kava address.
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## MsgConvertCoinToERC20
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`MsgConvertCoinToERC20` converts sdk.Coin to Kava ERC20.
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```protobuf
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service Msg {
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// ConvertCoinToERC20 defines a method for converting sdk.Coin to Kava ERC20.
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rpc ConvertCoinToERC20(MsgConvertCoinToERC20) returns (MsgConvertCoinToERC20Response);
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}
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// MsgConvertCoinToERC20 defines a conversion from sdk.Coin to Kava ERC20.
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message MsgConvertCoinToERC20 {
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// Kava bech32 address initiating the conversion.
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string initiator = 1;
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// EVM 0x hex address that will receive the converted Kava ERC20 tokens.
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string receiver = 2;
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// Amount is the sdk.Coin amount to convert.
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cosmos.base.v1beta1.Coin amount = 3;
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}
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```
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### State Changes
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- The `EnabledConversionPairs` param from `x/evmutil` is checked to ensure the conversion pair is enabled.
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- The specified sdk.Coin is moved from the initiator's address to the module account and burned.
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- The same amount of ERC20 coins are sent from the `x/evmutil` module account to the 0x receiver address.
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