json/v2 is fixing many of Go's JSON quirks
Dreams of Code
Aug 26, 2025 15:00
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The new experimental "encoding/json/v2" package brings a number of different improvements to both JSON marshaling and unmarshaling in Go. So much so that I thought it would be worthwhile doing a video on.
*Amendments/Mistakes*:
- - (Resolved) The double WithMarshalers does not work (as the video shows) This was my misunderstanding. Instead it needs to be via the JoinMarshalers, will edit this out if possible!
Links:
- Go 1.25 release notes: https://go.dev/doc/go1.25
- encoding/json/v2 documentation:
- json/v2 proposal: https://pkg.go.dev/encoding/json/v2
- encoding/json/jsontext documentation: https://pkg.go.dev/encoding/json/jsontext
- ISO8601: https://en.wikipedia.org/wiki/ISO_8601
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