Gracefully Handling JSON Sum Types in Go: Avoiding Panics

Go doesn't natively support sum types, but this article demonstrates how to emulate them in Go and safely handle JSON encoding and decoding to avoid runtime panics. The author uses a real-world example to illustrate using a "sealed interface" approach and code generation tools (OpenAPI Generator and Protocol Buffers) to gracefully handle JSON sum types. This achieves compile-time type safety and effectively prevents runtime errors. The article also compares alternative implementations and explores the advantages of the V language in handling sum types.