inital commit, which is clearly not initial

Signed-off-by: Uncle Stretch <uncle.stretch@ghostchain.io>

rpc/src/lib.rs

@@ -0,0 +1,145 @@
+use std::sync::Arc;
+
+use jsonrpsee::RpcModule;
+use primitives::{
+    AccountId, Balance, Block, BlockNumber, Hash, Nonce,
+};
+use sc_client_api::AuxStore;
+use grandpa::FinalityProofProvider;
+pub use sc_rpc::{DenyUnsafe, SubscriptionTaskExecutor};
+use sp_api::ProvideRuntimeApi;
+use block_builder_api::BlockBuilder;
+use sp_blockchain::{Error as BlockChainError, HeaderBackend, HeaderMetadata};
+use consensus_common::SelectChain;
+use babe_primitives::BabeApi;
+use sp_keystore::KeystorePtr;
+use tx_pool_api::TransactionPool;
+
+/// A type representing all RPC extensions.
+pub type RpcExtension = RpcModule<()>;
+
+/// Extra dependencies for BABE.
+pub struct BabeDeps {
+    /// A handle to the BABE worker for issuing requests.
+    pub babe_worker_handle: babe::BabeWorkerHandle<Block>,
+    /// The keystore that manages the keys of the node.
+    pub keystore: KeystorePtr,
+}
+
+/// Extra dependencies for GRANDPA.
+pub struct GrandpaDeps<B> {
+    /// Voting round info.
+    pub shared_voter_state: grandpa::SharedVoterState,
+    /// Authority set info.
+    pub shared_authority_set: grandpa::SharedAuthoritySet<Hash, BlockNumber>,
+    /// Receives notifications about justification events from GRANDPA,
+    pub justification_stream: grandpa::GrandpaJustificationStream<Block>,
+    /// Subscription manager to keep track of pubsub subscribers.
+    pub subscription_executor: sc_rpc::SubscriptionTaskExecutor,
+    /// Finality proof provider.
+    pub finality_provider: Arc<FinalityProofProvider<B, Block>>,
+}
+
+/// Full client dependencies
+pub struct FullDeps<C, P, SC, B> {
+    /// The client instance to use.
+    pub client: Arc<C>,
+    /// Transaction pool instance.
+    pub pool: Arc<P>,
+    /// The [`SelectChain`] Strategy
+    pub select_chain: SC,
+    /// A copy of the chain spec.
+    pub chain_spec: Box<dyn sc_chain_spec::ChainSpec>,
+    /// Whether to deny unsafe calls.
+    pub deny_unsafe: DenyUnsafe,
+    /// BABE specific dependencies
+    pub babe: BabeDeps,
+    /// GRANDPA specific dependencies
+    pub grandpa: GrandpaDeps<B>,
+    /// Backend used by the node.
+    pub backend: Arc<B>,
+}
+
+pub fn create_full_rpc<C, P, SC, B>(
+    FullDeps { client, pool, select_chain, chain_spec, deny_unsafe, babe, grandpa, backend } : FullDeps<C, P, SC, B>,
+) -> Result<RpcExtension, Box<dyn std::error::Error + Send + Sync>>
+where
+    C: ProvideRuntimeApi<Block>
+        + HeaderBackend<Block>
+        + AuxStore
+        + HeaderMetadata<Block, Error = BlockChainError>
+        + Send
+        + Sync
+        + 'static,
+    C::Api: frame_rpc_system::AccountNonceApi<Block, AccountId, Nonce>,
+    C::Api: pallet_transaction_payment_rpc::TransactionPaymentRuntimeApi<Block, Balance>,
+    C::Api: BlockBuilder<Block>,
+    C::Api: BabeApi<Block>,
+    P: TransactionPool + Sync + Send + 'static,
+    SC: SelectChain<Block> + 'static,
+    B: sc_client_api::Backend<Block> + Send + Sync + 'static,
+    B::State: sc_client_api::StateBackend<sp_runtime::traits::HashingFor<Block>>,
+{
+    use frame_rpc_system::{System, SystemApiServer};
+    use pallet_transaction_payment_rpc::{
+        TransactionPayment, TransactionPaymentApiServer,
+    };
+    use babe_rpc::{Babe, BabeApiServer};
+    use grandpa_rpc::{Grandpa, GrandpaApiServer};
+    use sc_rpc_spec_v2::chain_spec::{ChainSpec, ChainSpecApiServer};
+    use sc_sync_state_rpc::{SyncState, SyncStateApiServer};
+    use substrate_state_trie_migration_rpc::{
+        StateMigration, StateMigrationApiServer,
+    };
+
+    let mut io = RpcModule::new(());
+    let BabeDeps { babe_worker_handle, keystore } = babe;
+    let GrandpaDeps {
+        shared_voter_state,
+        shared_authority_set,
+        justification_stream,
+        subscription_executor,
+        finality_provider,
+    } = grandpa;
+
+    let chain_name = chain_spec.name().to_string();
+    let genesis_hash = client.hash(0).ok().flatten().expect("Genesis block exists; qed;");
+    let properties = chain_spec.properties();
+
+
+    io.merge(ChainSpec::new(chain_name, genesis_hash, properties).into_rpc())?;
+    io.merge(StateMigration::new(client.clone(), backend.clone(), deny_unsafe).into_rpc())?;
+    io.merge(System::new(client.clone(), pool.clone(), deny_unsafe).into_rpc())?;
+    io.merge(TransactionPayment::new(client.clone()).into_rpc())?;
+
+    io.merge(
+        Babe::new(
+            client.clone(),
+            babe_worker_handle.clone(),
+            keystore,
+            select_chain,
+            deny_unsafe,
+        ).into_rpc()
+    )?;
+
+    io.merge(
+        Grandpa::new(
+            subscription_executor,
+            shared_authority_set.clone(),
+            shared_voter_state,
+            justification_stream,
+            finality_provider,
+        ).into_rpc(),
+    )?;
+
+    io.merge(
+        SyncState::new(
+            chain_spec,
+            client.clone(),
+            shared_authority_set,
+            babe_worker_handle
+        )?.into_rpc(),
+    )?;
+
+    Ok(io)
+}