herkyl / patchwerk

Use Patchwerk to create RFC6902 JSON patches

Patchwerk

Go JSON patch

Use Patchwerk to create RFC6902 JSON patches.

At the moment of writing this is the only working Go library for creating JSON patches. If you wish to apply the patches I recommend using evanphx/json-patch (it only allows for applying patches, not generating them).

The project was originally cloned from mattbaird/jsonpatch.

Installation

go get github.com/herkyl/patchwerk

Usage

package main

import (
	"fmt"
	"github.com/herkyl/patchwerk"
)

func main() {
	a := `{"a":100, "b":200}`
	b := `{"a":100, "b":200, "c":300}`
	patch, err := patchwerk.DiffBytes([]byte(a), []byte(b))
	if err != nil {
		fmt.Printf("Error creating JSON patch: %v", err)
		return
	}
	fmt.Println(string(patch)) // [{"op": "add", "path": "/c", "value": 300}]
}