Clone this repo:
  1. 4e3ac27 Merge pull request #3 from Aetheus/master by xeipuuv · 8 months ago master upstream/master
  2. 02e5c6a allow Set function to set a value even if no value previously existed by Adrian · 10 months ago
  3. 2ec2e00 implement deleting for array members by Adrian · 11 months ago
  4. e0d451e use the same function signature as "Set"; Kind data is probably not used when deleting by Adrian · 11 months ago
  5. bd4bc22 add some usage info to the README by Adrian · 11 months ago

gojsonpointer

An implementation of JSON Pointer - Go language

Usage

jsonText := `{
	"name": "Bobby B",
	"occupation": {
		"title" : "King",
		"years" : 15,
		"heir" : "Joffrey B"			
	}
}`

var jsonDocument map[string]interface{}
json.Unmarshal([]byte(jsonText), &jsonDocument)

//create a JSON pointer
pointerString := "/occupation/title"
pointer, _ := NewJsonPointer(pointerString)

//SET a new value for the "title" in the document     
pointer.Set(jsonDocument, "Supreme Leader of Westeros")

//GET the new "title" from the document
title, _, _ := pointer.Get(jsonDocument)
fmt.Println(title) //outputs "Supreme Leader of Westeros"

//DELETE the "heir" from the document
deletePointer := NewJsonPointer("/occupation/heir")
deletePointer.Delete(jsonDocument)

b, _ := json.Marshal(jsonDocument)
fmt.Println(string(b))
//outputs `{"name":"Bobby B","occupation":{"title":"Supreme Leader of Westeros","years":15}}`

References

http://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-07

Note

The 4.Evaluation part of the previous reference, starting with ‘If the currently referenced value is a JSON array, the reference token MUST contain either...’ is not implemented.