EvmAccounts

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Calls

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claim_account

Claim account mapping between Substrate accounts and EVM accounts. Ensure eth_address has not been mapped.

• eth_address: The address to bind to the caller's account
• eth_signature: A signature generated by the address to prove ownership

Attributes

Name	Type
eth_address	EvmAddress
eth_signature	Eip712Signature

Python

call = substrate.compose_call(
    'EvmAccounts', 'claim_account', {
    'eth_address': '[u8; 20]',
    'eth_signature': '[u8; 65]',
}
)

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claim_default_account

Claim account mapping between Substrate accounts and a generated EVM address based off of those accounts. Ensure eth_address has not been mapped

Attributes

No attributes

Python

call = substrate.compose_call(
    'EvmAccounts', 'claim_default_account', {}
)

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Events

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ClaimAccount

Mapping between Substrate accounts and EVM accounts claim account.

Attributes

Name	Type	Composition
account_id	T::AccountId	AccountId
evm_address	EvmAddress	[u8; 20]

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Storage functions

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Accounts

The Substrate Account for EvmAddresses

Accounts: map EvmAddress => Option<AccountId>

Python

result = substrate.query(
    'EvmAccounts', 'Accounts', ['[u8; 20]']
)

Return value

'AccountId'

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EvmAddresses

The EvmAddress for Substrate Accounts

EvmAddresses: map AccountId => Option<EvmAddress>

Python

result = substrate.query(
    'EvmAccounts', 'EvmAddresses', ['AccountId']
)

Return value

'[u8; 20]'

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Constants

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ChainId

Chain ID of EVM.

Value

2043

Python

constant = substrate.get_constant('EvmAccounts', 'ChainId')

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Errors

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AccountIdHasMapped

AccountId has mapped

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BadSignature

Bad signature

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EthAddressHasMapped

Eth address has mapped

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InvalidSignature

Invalid signature

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NonZeroRefCount

Account ref count is not zero

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