1. no unused timers, wrap tracing calls to avoid stringifying 2. track graceful end of the call and avoid emitting 'cancelled' in such cases 3. remove validate calls in metadata on operations where it's not needed 4. refactor server session stream handlers into separate channelz enabled/disabled handlers 5. refactor message request logic - reduce amount of microtasks generated 6. improve sendStatus a little when there is no metadata involved
gRPC on Node.js
Implementations
For a comparison of the features available in these two libraries, see this document
C-based Client and Server
Directory: packages/grpc-native-core (lives in the grpc@1.24.x branch) (see here for installation information)
npm package: grpc.
This is the existing, feature-rich implementation of gRPC using a C++ addon. It works on all LTS versions of Node.js on most platforms that Node.js runs on.
Pure JavaScript Client
Directory: packages/grpc-js
npm package: @grpc/grpc-js
This library implements the core functionality of gRPC purely in JavaScript, without a C++ addon. It works on the latest version of Node.js on all platforms that Node.js runs on.
Other Packages
gRPC Protobuf Loader
Directory: packages/proto-loader
npm package: @grpc/proto-loader
This library loads .proto files into objects that can be passed to the gRPC libraries.
gRPC Tools
Directory: packages/grpc-tools
npm package: grpc-tools
Distribution of protoc and the gRPC Node protoc plugin for ease of installation with npm.
gRPC Health Check Service
Directory: packages/grpc-health-check
npm package: grpc-health-check
Health check service for gRPC servers.