jsonrpc optionals

ethcore/src/client.rs

@@ -31,6 +31,7 @@ use service::{NetSyncMessage, SyncMessage};
 use env_info::LastHashes;
 use verification::*;
 use block::*;
+use transaction::SignedTransaction;
 pub use blockchain::TreeRoute;
 
 /// General block status
@@ -104,6 +105,9 @@ pub trait BlockChainClient : Sync + Send {
 	/// Get block total difficulty.
 	fn block_total_difficulty_at(&self, n: BlockNumber) -> Option<U256>;
 
+	/// Get transaction with given hash.
+	fn transaction(&self, hash: &H256) -> Option<SignedTransaction>;
+
 	/// Get a tree route between `from` and `to`.
 	/// See `BlockChain::tree_route`.
 	fn tree_route(&self, from: &H256, to: &H256) -> Option<TreeRoute>;
@@ -388,6 +392,10 @@ impl BlockChainClient for Client {
 		self.chain.read().unwrap().block_hash(n).and_then(|h| self.block_total_difficulty(&h))
 	}
 
+	fn transaction(&self, hash: &H256) -> Option<SignedTransaction> {
+		self.chain.read().unwrap().transaction(hash)
+	}
+
 	fn tree_route(&self, from: &H256, to: &H256) -> Option<TreeRoute> {
 		self.chain.read().unwrap().tree_route(from.clone(), to.clone())
 	}

ethcore/src/lib.rs

@@ -98,6 +98,7 @@ pub mod ethereum;
 pub mod header;
 pub mod service;
 pub mod spec;
+pub mod transaction;
 pub mod views;
 pub mod receipt;
 
@@ -115,7 +116,6 @@ mod state;
 mod account;
 mod account_db;
 mod action_params;
-mod transaction;
 mod null_engine;
 mod builtin;
 mod extras;

ethcore/src/transaction.rs

@@ -156,8 +156,7 @@ impl Transaction {
 	}
 }
 
-
-
+/// Signed transaction information.
 #[derive(Debug, Clone, Eq)]
 pub struct SignedTransaction {
 	/// Plain Transaction.