A JSON Merge Patch utility forked from json-patch and based on fastjson, with WASM/WASI support for TinyGo.
The TinyGo compiler doesn't support encoding/json or some of the reflect package that most JSON serializers are based on.
Luckily valyala/fastjson is a native go implementation that doesn't rely on encoding/json and only uses the supported reflect functions.
Therefore this package is a TinyGo compliant library for JSON Merge Patch.
Public Functions:
MergePatch(doc, merge) -> doc: Applies a MergePatch to a JSON document and returns the new doc.MergeMergePatch(merge, merge) -> merge: Merges two Merge Patch documents into a single.
package main
import (
"fmt"
"github.com/lens-vm/jsonmerge"
)
func main() {
// Let's create a merge patch and a original document...
original := []byte(`{"name": "John", "age": 24, "height": 3.21}`)
merge := []byte(`{"name": "Jane", "age": 21}`)
new, err := jsonpatch.MergePatch(original, merge)
if err != nil {
panic(err)
}
fmt.Printf("new merged document: %s\n", new)
// outputs {{"name": "Jane", "age": 21, "height": 3.21}}
}Currently this project succesfully passes much of the JSON Merge RFC Tests for applying merges to 1. Documents 2. Other Merges.
Next steps is to support creating a Merge from the diff of two existing JSON Docs. This is suppported in the orignal evanphx/json-patch library, but the changes haven't made its way here.
This library is an adaptation of / based on evanphx/json-patch. The goal of this fork is to replace the original libraries dependancy on encoding/json with valyala/fastjson. The original license (BSD 3-Clause) is maintained, and the original copyright is maintained in the unchanged files.