// file: kb-onchain-transport/src/client.rs
// version: 3

//! RPC client scaffold for Solana ingestion.

/// RPC endpoint configuration.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct RpcEndpoint {
    /// HTTP RPC URL.
    pub http_url: std::string::String,
    /// Optional WebSocket RPC URL.
    pub ws_url: std::option::Option<std::string::String>,
}

/// Minimal Solana RPC client abstraction.
pub trait SolanaRpcClient {
    /// Fetches a raw transaction payload by signature.
    fn get_transaction_raw_json(
        &self,
        signature: &kb_lib::MdSignature,
    ) -> kb_core::Result<std::option::Option<std::string::String>>;
}