Node.js · Senior · Question 64 of 75

When is gRPC a good fit compared with REST/JSON?

1When you want human-readable payloads
2For public APIs called directly from any browser without proxies
✓Correct answer: For internal service-to-service calls that benefit from typed contracts (Protocol Buffers), HTTP/2 streaming and compact messages

Explanation

Browsers can't use plain gRPC directly (gRPC-Web or a proxy is needed). REST stays simpler for public APIs and caching.

Further reading

gRPC: Introduction ↗

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