Struct2Json

Struct2Json offers the ability to convert Struct to map[string]interface{} directly

I support json tag & noroot tag to help us organize our output JSON

see examples below

Installation

go get github.com/w-zengtao/struct2json

How to use

type AStruct struct {
	A int `json:"a"`
}

type BStruct struct {
	B int `json:"b"`
}

type CStruct struct {
	C        int
	D        *int
	E        *int
	AS       AStruct `json:"as"`
	BS       BStruct `json:"bs"`
	ASP      *AStruct
	BSP      *BStruct
	ASNoroot AStruct `json:"asnoroot" noroot:"true"`
}

var (
	i = 10
)

input := CStruct{
  C: 1,
  D: &i,
  AS: AStruct{
    A: 1,
  },
  BSP: &BStruct{
    B: 1,
  },
  ASNoroot: AStruct{
    A: 100,
  },
}

struct2json.Convert(input)

output

{
	ASP: nil, // nil pointer
	BSP: {
		b: 1
	},
	C: 1,
	D: 10,  // *int
	E: nil,
	a: 100, // ASNoroot
	as: {
		a: 1
	},
	bs: {
		b: 0
	}
}

traps

Only pointer can have nil value, so if you do not want the Go's default value, use pointer field.
Only struct or pointer to struct support noroot tag
Once noroot meet same json tag, a replace action will be happend

License

Released under the MIT License