Trait Sponsor 

pub trait Sponsor: Account + Sized {
    // Provided methods
    fn sponsor<S: Account>(
        &self,
        sender: &S,
        sender_sequence_number: u64,
        payload: TransactionPayload,
        chain_id: ChainId,
    ) -> AptosResult<SignedTransaction> { ... }
    fn sponsor_with_gas<S: Account>(
        &self,
        sender: &S,
        sender_sequence_number: u64,
        payload: TransactionPayload,
        chain_id: ChainId,
        max_gas_amount: u64,
        gas_unit_price: u64,
    ) -> AptosResult<SignedTransaction> { ... }
}

Extension trait that adds sponsorship capabilities to accounts.

This trait provides convenient methods for an account to sponsor transactions for other users.

Provided Methods

fn sponsor<S: Account>( &self, sender: &S, sender_sequence_number: u64, payload: TransactionPayload, chain_id: ChainId, ) -> AptosResult<SignedTransaction>

Sponsors a transaction for another account.

Creates and signs a sponsored transaction where self pays the gas fees.

Arguments

• sender - The account initiating the transaction
• sender_sequence_number - The sender’s current sequence number
• payload - The transaction payload
• chain_id - The target chain ID

Example

use aptos_sdk::transaction::Sponsor;

let signed_txn = sponsor_account.sponsor(
    &user_account,
    0,
    payload,
    ChainId::testnet(),
)?;

Errors

Returns an error if building the transaction fails or if any signer fails to sign.

fn sponsor_with_gas<S: Account>( &self, sender: &S, sender_sequence_number: u64, payload: TransactionPayload, chain_id: ChainId, max_gas_amount: u64, gas_unit_price: u64, ) -> AptosResult<SignedTransaction>

Sponsors a transaction with custom gas settings.

Errors

Returns an error if building the transaction fails or if any signer fails to sign.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<A: Account + Sized> Sponsor for A