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 crate::utils::amount::to_smallest_units;

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

const LP_TOKEN_DENOMINATION: &str = "1000000000";

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

pub async fn remove_liquidity_with_client<T>(
    removal: RemoveLiquidityOptions,
    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 removal.token_a.is_empty() {
        return Err(ZeraError::Validation("tokenA is required".to_string()));
    }
    if removal.token_b.is_empty() {
        return Err(ZeraError::Validation("tokenB is required".to_string()));
    }
    if removal.lp_amount.is_empty() {
        return Err(ZeraError::Validation("lpAmount is required".to_string()));
    }

    let lp_amount_parts = to_smallest_units(
        &removal.lp_amount,
        "$LP+0000",
        Some(LP_TOKEN_DENOMINATION),
        None,
    )?;

    let parameter_value = format!(
        "{},{},{},{}",
        removal.token_a, removal.token_b, lp_amount_parts, removal.fee_rate
    );

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

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

pub async fn remove_liquidity_and_send(
    removal: RemoveLiquidityOptions,
    public_key_base58_identifier: &str,
    private_key_base58: &str,
    options: DexOptions,
) -> Result<String> {
    let grpc_config = options.grpc_config.clone();
    let txn = remove_liquidity(
        removal,
        public_key_base58_identifier,
        private_key_base58,
        options,
    )
    .await?;
    send_smart_contract_execute_txn(&txn, grpc_config).await
}