# `Ethers.Transaction.Eip7702`
[🔗](https://github.com/ExWeb3/elixir_ethers/blob/v0.8.0/lib/ethers/transaction/eip7702.ex#L1)

Transaction struct and protocol implementation for Ethereum Improvement Proposal (EIP) 7702
transactions. EIP-7702 introduced "set code transactions" which let externally-owned
accounts designate contract code to execute in their place via signed authorizations
(see `Ethers.Authorization`).

Two constraints set this type apart from EIP-1559 transactions:
- `to` is required — contract creation is not allowed in type-4 transactions.
- `authorization_list` must contain at least one `Ethers.Authorization.Signed`.

See: https://eips.ethereum.org/EIPS/eip-7702

# `t`

```elixir
@type t() :: %Ethers.Transaction.Eip7702{
  access_list: [{binary(), [binary()]}],
  authorization_list: [Ethers.Authorization.Signed.t()],
  chain_id: non_neg_integer(),
  gas: non_neg_integer(),
  input: binary(),
  max_fee_per_gas: non_neg_integer(),
  max_priority_fee_per_gas: non_neg_integer(),
  nonce: non_neg_integer(),
  to: Ethers.Types.t_address(),
  value: non_neg_integer()
}
```

A transaction type following EIP-7702 (Type-4) and incorporating the following fields:
- `chain_id` - chain ID of network where the transaction is to be executed
- `nonce` - sequence number for the transaction from this sender
- `max_priority_fee_per_gas` - maximum fee per gas (in wei) to give to validators as priority fee (introduced in EIP-1559)
- `max_fee_per_gas` - maximum total fee per gas (in wei) willing to pay (introduced in EIP-1559)
- `gas` - maximum amount of gas allowed for transaction execution
- `to` - destination address for transaction. Required — type-4 transactions cannot create contracts
- `value` - amount of ether (in wei) to transfer
- `input` - data payload of the transaction
- `access_list` - list of addresses and storage keys to warm up (introduced in EIP-2930)
- `authorization_list` - list of signed authorizations setting code on their authorities (introduced in EIP-7702)

---

*Consult [api-reference.md](api-reference.md) for complete listing*