Compare gRPC Server Streaming vs WebSockets for high-frequency real-time telemetry.
❓ Interview Prompt: Compare gRPC Server Streaming (HTTP/2 multiplexed, strongly-typed binary Protobuf) vs WebSockets (full-duplex TCP socket, manual frames, browser compatibility).
Architectural comparison for high-frequency real-time data delivery:
| Feature | gRPC Server Streaming | WebSockets |
|---|---|---|
| Protocol | HTTP/2 (Single directional stream) | TCP Full-Duplex Socket |
| Data Format | Binary Protobuf (Strongly typed) | Text/JSON or raw ArrayBuffers |
| Multiplexing | Native HTTP/2 stream multiplexing | Requires custom framing protocol |
| Browser Support | Requires gRPC-Web proxy bridge | Native browser 'WebSocket' API support |
| Best For | Internal microservice real-time telemetry | Browser client interactive chat/collaboration |
Code Implementation Example
# gRPC Server Streaming Protobuf definition:
service TelemetryService {
rpc StreamMetrics (MetricRequest) returns (stream MetricData);
}Use WebSockets for interactive browser applications; use gRPC Server Streaming for high-throughput internal microservice telemetry.