grpc-node/PACKAGE-COMPARISON.md

Feature comparison of grpc and @grpc/grpc-js packages

Feature	grpc	@grpc/grpc-js
Client	✔️	✔️
Server	✔️	✔️
Unary RPCs	✔️	✔️
Streaming RPCs	✔️	✔️
Deadlines	✔️	✔️
Cancellation	✔️	✔️
Automatic Reconnection	✔️	✔️
Per-message Compression	✔️	only for response messages
Channel State	✔️	✔️
JWT Access and Service Account Credentials	provided by the Google Auth Library	provided by the Google Auth Library
Interceptors	✔️	✔️
Connection Keepalives	✔️	✔️
HTTP Connect Support	✔️	✔️
Retries	✔️	❌
Stats/tracing/monitoring	✔️	❌
Load Balancing	✔️	Pick first and round robin
Initial Metadata Options	✔️	only waitForReady

Other Properties	grpc	@grpc/grpc-js
Pure JavaScript Code	❌	✔️
Supported Node Versions	>= 4	^8.13.0 or >=10.10.0
Supported Electron Versions	All	>= 3
Supported Platforms	Linux, Windows, MacOS	All
Supported Architectures	x86, x86-64, ARM7+	All

In addition, all channel arguments defined in this header file are handled by the grpc library. Of those, the following are handled by the @grpc/grpc-js library:

• grpc.ssl_target_name_override
• grpc.primary_user_agent
• grpc.secondary_user_agent
• grpc.default_authority
• grpc.keepalive_time_ms
• grpc.keepalive_timeout_ms
• grpc.keepalive_permit_without_calls
• grpc.service_config
• grpc.max_concurrent_streams
• grpc.initial_reconnect_backoff_ms
• grpc.max_reconnect_backoff_ms
• grpc.use_local_subchannel_pool
• grpc.max_send_message_length
• grpc.max_receive_message_length
• grpc.enable_http_proxy
• channelOverride
• channelFactoryOverride