jsonpatch

README

JSON-Patch

Provides the ability to modify and test a JSON according to a RFC6902 JSON patch and RFC7396 JSON Merge Patch.

Version: 1.0

API Usage

• Given a []byte, obtain a Patch object

  obj, err := jsonpatch.DecodePatch(patch)

• Apply the patch and get a new document back

  out, err := obj.Apply(doc)

• Create a JSON Merge Patch document based on two json documents (a to b):

  mergeDoc, err := jsonpatch.CreateMergePatch(a, b)

• Bonus API: compare documents for structural equality

  jsonpatch.Equal(doca, docb)

Documentation

Index

• Constants
• func CreateMergePatch(a, b []byte) ([]byte, error)
• func Equal(a, b []byte) bool
• func MergePatch(docData, patchData []byte) ([]byte, error)
• type Patch
  • func DecodePatch(buf []byte) (Patch, error)
  • func (p Patch) Apply(doc []byte) ([]byte, error)
  • func (p Patch) ApplyIndent(doc []byte, indent string) ([]byte, error)

Constants

const LeftBrace byte = 91 // []byte("[")

Functions

func CreateMergePatch

func CreateMergePatch(a, b []byte) ([]byte, error)

CreateMergePatch creates a merge patch as specified in http://tools.ietf.org/html/draft-ietf-appsawg-json-merge-patch-07

'a' is original, 'b' is the modified document. Both are to be given as json encoded content. The function will return a mergeable json document with differences from a to b.

An error will be returned if any of the two documents are invalid.

func Equal

func Equal(a, b []byte) bool

Equal indicates if 2 JSON documents have the same structural equality.

func MergePatch

func MergePatch(docData, patchData []byte) ([]byte, error)

MergePatch merges the patchData into the docData.

Types

type Patch

type Patch []operation

Patch is an ordered collection of operations.

func DecodePatch

func DecodePatch(buf []byte) (Patch, error)

DecodePatch decodes the passed JSON document as an RFC 6902 patch.

func (Patch) Apply

func (p Patch) Apply(doc []byte) ([]byte, error)

Apply mutates a JSON document according to the patch, and returns the new document.

func (Patch) ApplyIndent

func (p Patch) ApplyIndent(doc []byte, indent string) ([]byte, error)

ApplyIndent mutates a JSON document according to the patch, and returns the new document indented.