Notes #

• First 0.1.0 release of this package.

Features #

Initial scaffold for 17 higher-level packages including the full RPC stack,

program interaction layers, and the umbrella package. Each package has its pubspec.yaml with correct workspace dependencies, shared analysis_options.yaml, and an empty barrel export file ready for implementation.

Package groups scaffolded:

• RPC Stack: rpc_types (base types), rpc_spec_types, rpc_spec (specification), rpc_api (method definitions), rpc_parsed_types, rpc_transformers (response processing), rpc_transport_http (HTTP transport), rpc (primary client)
• RPC Subscriptions: rpc_subscriptions_api, rpc_subscriptions_channel_websocket, rpc_subscriptions (WebSocket subscription client)
• Programs & Accounts: accounts (fetching/decoding), programs (utilities), program_client_core (base client), sysvars (system variables)
• Transaction Lifecycle: transaction_confirmation (polling/confirmation)
• Umbrella: solana_kit (re-exports all packages for convenience)

Implement RPC subscriptions composition package ported from @solana/rpc-subscriptions.

solana_kit_rpc_subscriptions (144 tests):

• createSolanaRpcSubscriptions and createSolanaRpcSubscriptionsUnstable factory functions
• createSolanaRpcSubscriptionsFromTransport for custom transport usage
• getRpcSubscriptionsTransportWithSubscriptionCoalescing deduplicating identical subscriptions via fastStableStringify hashing
• getRpcSubscriptionsChannelWithAutoping periodic keep-alive ping messages with timer reset on activity
• getChannelPoolingChannelCreator channel reuse with maxSubscriptionsPerChannel limits and automatic cleanup
• getRpcSubscriptionsChannelWithJsonSerialization and getRpcSubscriptionsChannelWithBigIntJsonSerialization
• createDefaultSolanaRpcSubscriptionsChannelCreator composing JSON + autopinger + pooling
• createSolanaJsonRpcIntegerOverflowError with ordinal argument labels
• Default RPC subscription configuration with confirmed commitment