zera-sdk 0.1.0

Rust SDK for ZERA transactions, validator APIs, and bridge workflows
Documentation 
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use zera_proto::zera_txn::SmartContractExecuteTxn;

use crate::error::{Result, ZeraError};
use crate::grpc::{UnaryTransport, ValidatorApiClient};
use crate::smart_contracts::send_smart_contract_execute_txn;

use super::super::types::{DexOptions, SwapOptions};
use super::super::utils::{
    create_dex_transaction_with_client, fee_id_or_default, resolve_amount_with_client,
    validate_signing_inputs,
};

pub async fn swap(
    swap_options: SwapOptions,
    public_key_base58_identifier: &str,
    private_key_base58: &str,
    options: DexOptions,
) -> Result<SmartContractExecuteTxn> {
    let client = ValidatorApiClient::new(options.grpc_config.clone().unwrap_or_default())?;
    swap_with_client(
        swap_options,
        public_key_base58_identifier,
        private_key_base58,
        options,
        &client,
    )
    .await
}

pub async fn swap_with_client<T>(
    swap_options: SwapOptions,
    public_key_base58_identifier: &str,
    private_key_base58: &str,
    options: DexOptions,
    client: &ValidatorApiClient<T>,
) -> Result<SmartContractExecuteTxn>
where
    T: UnaryTransport,
{
    validate_signing_inputs(public_key_base58_identifier, private_key_base58)?;

    if swap_options.token_in.is_empty() {
        return Err(ZeraError::Validation("tokenIn is required".to_string()));
    }
    if swap_options.token_out.is_empty() {
        return Err(ZeraError::Validation("tokenOut is required".to_string()));
    }
    if swap_options.amount_in.is_empty() {
        return Err(ZeraError::Validation("amountIn is required".to_string()));
    }

    let amount_in_parts =
        resolve_amount_with_client(&swap_options.amount_in, &swap_options.token_in, client).await?;

    let platform_fee_address = swap_options.platform_fee_address.unwrap_or_default();
    let parameter_value = format!(
        "{},{},{},{},{},{}",
        swap_options.token_in,
        swap_options.token_out,
        amount_in_parts,
        swap_options.fee_rate,
        swap_options.platform_fee_bps,
        platform_fee_address
    );

    let mut create_options = options;
    create_options.fee_id = Some(fee_id_or_default(&create_options));

    create_dex_transaction_with_client(
        "swap",
        parameter_value,
        public_key_base58_identifier,
        private_key_base58,
        create_options,
        client,
    )
    .await
}

pub async fn swap_and_send(
    swap_options: SwapOptions,
    public_key_base58_identifier: &str,
    private_key_base58: &str,
    options: DexOptions,
) -> Result<String> {
    let grpc_config = options.grpc_config.clone();
    let txn = swap(
        swap_options,
        public_key_base58_identifier,
        private_key_base58,
        options,
    )
    .await?;
    send_smart_contract_execute_txn(&txn, grpc_config).await
}