Trait subxt::config::extrinsic_params::ExtrinsicParams

pub trait ExtrinsicParams<Index, Hash>: Debug + 'static {
    type OtherParams;

    // Required methods
    fn new(
        spec_version: u32,
        tx_version: u32,
        nonce: Index,
        genesis_hash: Hash,
        other_params: Self::OtherParams
    ) -> Self;
    fn encode_extra_to(&self, v: &mut Vec<u8>);
    fn encode_additional_to(&self, v: &mut Vec<u8>);
}

This trait allows you to configure the “signed extra” and “additional” parameters that are signed and used in transactions. see BaseExtrinsicParams for an implementation that is compatible with a Polkadot node.

Required Associated Types

type OtherParams

These parameters can be provided to the constructor along with some default parameters that subxt understands, in order to help construct your ExtrinsicParams object.

Required Methods

fn new( spec_version: u32, tx_version: u32, nonce: Index, genesis_hash: Hash, other_params: Self::OtherParams ) -> Self

Construct a new instance of our ExtrinsicParams

fn encode_extra_to(&self, v: &mut Vec<u8>)

This is expected to SCALE encode the “signed extra” parameters to some buffer that has been provided. These are the parameters which are sent along with the transaction, as well as taken into account when signing the transaction.

fn encode_additional_to(&self, v: &mut Vec<u8>)

This is expected to SCALE encode the “additional” parameters to some buffer that has been provided. These parameters are not sent along with the transaction, but are taken into account when signing it, meaning the client and node must agree on their values.

Implementors

impl<T: Config, Tip: Debug + Encode + 'static> ExtrinsicParams<<T as Config>::Index, <T as Config>::Hash> for BaseExtrinsicParams<T, Tip>

type OtherParams = BaseExtrinsicParamsBuilder<T, Tip>