kora-rpc 1.0.3

RPC server for Kora gasless relayer
Documentation 
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use kora_lib::{
    config::ValidationConfig,
    transaction::{
        decode_b64_transaction, encode_b64_transaction,
        sign_transaction_if_paid as lib_sign_transaction_if_paid,
    },
    KoraError,
};
use serde::{Deserialize, Serialize};
use solana_client::nonblocking::rpc_client::RpcClient;
use std::sync::Arc;
use utoipa::ToSchema;

#[derive(Debug, Deserialize, ToSchema)]
pub struct SignTransactionIfPaidRequest {
    pub transaction: String,
    #[serde(default)]
    pub margin: Option<f64>,
}

#[derive(Debug, Serialize, ToSchema)]
pub struct SignTransactionIfPaidResponse {
    pub transaction: String,
    pub signed_transaction: String,
}

pub async fn sign_transaction_if_paid(
    rpc_client: &Arc<RpcClient>,
    validation: &ValidationConfig,
    request: SignTransactionIfPaidRequest,
) -> Result<SignTransactionIfPaidResponse, KoraError> {
    let transaction_requested = decode_b64_transaction(&request.transaction)?;

    let (transaction, signed_transaction) =
        lib_sign_transaction_if_paid(rpc_client, validation, transaction_requested, request.margin)
            .await
            .map_err(|e| KoraError::TokenOperationError(e.to_string()))?;

    Ok(SignTransactionIfPaidResponse {
        transaction: encode_b64_transaction(&transaction)?,
        signed_transaction,
    })
}