Struct TxBuilder 

pub struct TxBuilder { /* private fields */ }

A builder for constructing Stellar TransactionEnvelopes (V1).

Implementations

impl TxBuilder

pub fn new() -> Self

pub fn source_account(self, address: &str) -> Result<Self, BuilderError>

Set the source account from a public key (G…)

pub fn sequence_number(self, seq: i64) -> Self

Set the sequence number

pub fn fee(self, fee: u32) -> Self

Set the base fee

pub fn memo_text(self, text: &str) -> Result<Self, BuilderError>

Set a text memo

pub fn memo_id(self, id: u64) -> Self

Set an ID memo

pub fn add_operation(self, op: Operation) -> Self

Add a pre-built Operation

pub fn invoke_contract( self, contract_id: &str, function: &str, args: Vec<ScVal>, ) -> Result<Self, BuilderError>

Add an InvokeHostFunction operation for a smart-contract call.

This is a convenience that wraps a HostFunction::InvokeContract op without requiring the caller to hand-assemble the XDR Operation.

Errors

Returns BuilderError::InvalidOperation if the contract ID (C...) or function name is invalid.

pub fn set_ext(self, ext: TransactionExt) -> Self

Set ext to V1 with SorobanTransactionData (for host functions)

pub fn max_time(self, max_time: u64) -> Self

Set timebounds timeout (from now to 0 means unbounded for now, or we can just leave None) Real implementations might take a minTime and maxTime. We provide a basic max_time setter.

pub fn build(self) -> Result<TransactionEnvelope, BuilderError>

Build the TransactionEnvelope (unsigned).

pub fn build_base64(self) -> Result<String, BuilderError>

Build and encode to base64

Trait Implementations

impl Default for TxBuilder

fn default() -> Self

Returns the “default value” for a type.