EVM¶

Calls¶

call¶

Issue an EVM call operation. This is similar to a message call transaction in Ethereum.

Attributes¶

Name	Type
source	`H160`
target	`H160`
input	`Vec<u8>`
value	`U256`
gas_limit	`u64`
max_fee_per_gas	`U256`
max_priority_fee_per_gas	`Option<U256>`
nonce	`Option<U256>`
access_list	`Vec<(H160, Vec<H256>)>`

Python¶

call = substrate.compose_call(
    'EVM', 'call', {
    'access_list': [
        ('[u8; 20]', ['scale_info::9']),
    ],
    'gas_limit': 'u64',
    'input': 'Bytes',
    'max_fee_per_gas': 'scale_info::55',
    'max_priority_fee_per_gas': (
        None,
        'scale_info::55',
    ),
    'nonce': (None, 'scale_info::55'),
    'source': '[u8; 20]',
    'target': '[u8; 20]',
    'value': 'scale_info::55',
}
)

create¶

Issue an EVM create operation. This is similar to a contract creation transaction in Ethereum.

Attributes¶

Name	Type
source	`H160`
init	`Vec<u8>`
value	`U256`
gas_limit	`u64`
max_fee_per_gas	`U256`
max_priority_fee_per_gas	`Option<U256>`
nonce	`Option<U256>`
access_list	`Vec<(H160, Vec<H256>)>`

Python¶

call = substrate.compose_call(
    'EVM', 'create', {
    'access_list': [
        ('[u8; 20]', ['scale_info::9']),
    ],
    'gas_limit': 'u64',
    'init': 'Bytes',
    'max_fee_per_gas': 'scale_info::55',
    'max_priority_fee_per_gas': (
        None,
        'scale_info::55',
    ),
    'nonce': (None, 'scale_info::55'),
    'source': '[u8; 20]',
    'value': 'scale_info::55',
}
)

create2¶

Issue an EVM create2 operation.

Attributes¶

Name	Type
source	`H160`
init	`Vec<u8>`
salt	`H256`
value	`U256`
gas_limit	`u64`
max_fee_per_gas	`U256`
max_priority_fee_per_gas	`Option<U256>`
nonce	`Option<U256>`
access_list	`Vec<(H160, Vec<H256>)>`

Python¶

call = substrate.compose_call(
    'EVM', 'create2', {
    'access_list': [
        ('[u8; 20]', ['scale_info::9']),
    ],
    'gas_limit': 'u64',
    'init': 'Bytes',
    'max_fee_per_gas': 'scale_info::55',
    'max_priority_fee_per_gas': (
        None,
        'scale_info::55',
    ),
    'nonce': (None, 'scale_info::55'),
    'salt': 'scale_info::9',
    'source': '[u8; 20]',
    'value': 'scale_info::55',
}
)

withdraw¶

Withdraw balance from EVM into currency/balances pallet.

Attributes¶

Name	Type
address	`H160`
value	`BalanceOf<T>`

Python¶

call = substrate.compose_call(
    'EVM', 'withdraw', {
    'address': '[u8; 20]',
    'value': 'u128',
}
)

Events¶

BalanceDeposit¶

A deposit has been made at a given address. [sender, address, value]

Attributes¶

Name	Type	Composition
None	`T::AccountId`	`AccountId`
None	`H160`	`[u8; 20]`
None	`U256`	`scale_info::55`

BalanceWithdraw¶

A withdrawal has been made from a given address. [sender, address, value]

Attributes¶

Name	Type	Composition
None	`T::AccountId`	`AccountId`
None	`H160`	`[u8; 20]`
None	`U256`	`scale_info::55`

Created¶

A contract has been created at given [address].

Attributes¶

Name	Type	Composition
None	`H160`	`[u8; 20]`

CreatedFailed¶

A [contract] was attempted to be created, but the execution failed.

Attributes¶

Name	Type	Composition
None	`H160`	`[u8; 20]`

Executed¶

A [contract] has been executed successfully with states applied.

Attributes¶

Name	Type	Composition
None	`H160`	`[u8; 20]`

ExecutedFailed¶

A [contract] has been executed with errors. States are reverted with only gas fees applied.

Attributes¶

Name	Type	Composition
None	`H160`	`[u8; 20]`

Log¶

Ethereum events from contracts.

Attributes¶

Name	Type	Composition
None	`Log`	`{'address': '[u8; 20]', 'topics': ['scale_info::9'], 'data': 'Bytes'}`

Storage functions¶

AccountCodes¶

Python¶

result = substrate.query(
    'EVM', 'AccountCodes', ['[u8; 20]']
)

Return value¶

'Bytes'

AccountStorages¶

Python¶

result = substrate.query(
    'EVM', 'AccountStorages', ['[u8; 20]', 'scale_info::9']
)

Return value¶

'scale_info::9'

Errors¶

BalanceLow¶

Not enough balance to perform action

FeeOverflow¶

Calculating total fee overflowed

GasPriceTooLow¶

Gas price is too low.

InvalidNonce¶

Nonce is invalid

PaymentOverflow¶

Calculating total payment overflowed

WithdrawFailed¶

Withdraw fee failed