Go: إلغاء تسلسل JSON باستخدام كتابة غير صحيحة ، أو كيفية التغلب على أخطاء مطور واجهة برمجة التطبيقات

{
	"name":"qwerty",
	"price":258.25,
	"active":true,
	"description":null,
}

[
	{"id":1,"price":2.58},
	{"id":2,"price":7.15}
]

type Target struct {
	Id    int     `json:"id"`
	Price float64 `json:"price"`
}

func main() {
	jsonString := `[{"id":1,"price":2.58},
					{"id":4,"price":7.15}]`

	targets := []Target{}

	err := json.Unmarshal([]byte(jsonString), &targets)
	if err != nil {
		fmt.Println(err)
		return
	}

	for _, t := range targets {
		fmt.Println(t.Id, "-", t.Price)
	}
}

[
	{"id":1,"price":2.58},
	{"id":2,"price":"2.58"},
	{"id":3,"price":7.15},
	{"id":4,"price":"7.15"}
]

type CustomFloat64 struct{
	Float64 float64
}

type Target struct {
	Id    int           `json:"id"`
	Price CustomFloat64 `json:"price"`
}

func (cf *CustomFloat64) UnmarshalJSON(data []byte) error {

if data[0] == 34 {

err := json.Unmarshal(data[1:len(data)-1], &cf.Float64)

err := json.Unmarshal(data, &cf.Float64)

func (cf *CustomFloat64) UnmarshalJSON(data []byte) error {
	if data[0] == 34 {
		err := json.Unmarshal(data[1:len(data)-1], &cf.Float64)
		if err != nil {
			return errors.New("CustomFloat64: UnmarshalJSON: " + err.Error())
		}
	} else {
		err := json.Unmarshal(data, &cf.Float64)
		if err != nil {
			return errors.New("CustomFloat64: UnmarshalJSON: " + err.Error())
		}
	}
	return nil
}

func (cf CustomFloat64) MarshalJSON() ([]byte, error) {
	json, err := json.Marshal(cf.Float64)
	return json, err
}

package main

import (
	"encoding/json"
	"errors"
	"fmt"
)

type CustomFloat64 struct {
	Float64 float64
}

const QUOTES_BYTE = 34

func (cf *CustomFloat64) UnmarshalJSON(data []byte) error {
	if data[0] == QUOTES_BYTE {
		err := json.Unmarshal(data[1:len(data)-1], &cf.Float64)
		if err != nil {
			return errors.New("CustomFloat64: UnmarshalJSON: " + err.Error())
		}
	} else {
		err := json.Unmarshal(data, &cf.Float64)
		if err != nil {
			return errors.New("CustomFloat64: UnmarshalJSON: " + err.Error())
		}
	}
	return nil
}

func (cf CustomFloat64) MarshalJSON() ([]byte, error) {
	json, err := json.Marshal(cf.Float64)
	return json, err
}

type Target struct {
	Id    int           `json:"id"`
	Price CustomFloat64 `json:"price"`
}

func main() {
	jsonString := `[{"id":1,"price":2.58},
					{"id":2,"price":"2.58"},
					{"id":3,"price":7.15},
					{"id":4,"price":"7.15"}]`

	targets := []Target{}

	_ := json.Unmarshal([]byte(jsonString), &targets)

	for _, t := range targets {
		fmt.Println(t.Id, "-", t.Price.Float64)
	}

	jsonStringNew, _ := json.Marshal(targets)
	fmt.Println(string(jsonStringNew))
}

1 - 2.58
2 - 2.58
3 - 7.15
4 - 7.15
[{"id":1,"price":2.58},{"id":2,"price":2.58},{"id":3,"price":7.15},{"id":4,"price":7.15}]

[
	{"id":1,"active":true},
	{"id":2,"active":"true"},
	{"id":3,"active":"1"},
	{"id":4,"active":1},
	{"id":5,"active":false},
	{"id":6,"active":"false"},
	{"id":7,"active":"0"},
	{"id":8,"active":0},
	{"id":9,"active":""}
]

type Target struct {
	Id     int        `json:"id"`
	Active CustomBool `json:"active"`
}

type CustomBool struct {
	Bool bool
}

func (cb *CustomBool) UnmarshalJSON(data []byte) error {
	switch string(data) {
	case `"true"`, `true`, `"1"`, `1`:
		cb.Bool = true
		return nil
	case `"false"`, `false`, `"0"`, `0`, `""`:
		cb.Bool = false
		return nil
	default:
		return errors.New("CustomBool: parsing \"" + string(data) + "\": unknown value")
	}
}

cb.Bool = true

return errors.New("CustomBool: parsing \"" + string(data) + "\": unknown value")

func (cb CustomBool) MarshalJSON() ([]byte, error) {
	json, err := json.Marshal(cb.Bool)
	return json, err
}

package main

import (
	"encoding/json"
	"errors"
	"fmt"
)

type CustomBool struct {
	Bool bool
}

func (cb *CustomBool) UnmarshalJSON(data []byte) error {
	switch string(data) {
	case `"true"`, `true`, `"1"`, `1`:
		cb.Bool = true
		return nil
	case `"false"`, `false`, `"0"`, `0`, `""`:
		cb.Bool = false
		return nil
	default:
		return errors.New("CustomBool: parsing \"" + string(data) + "\": unknown value")
	}
}

func (cb CustomBool) MarshalJSON() ([]byte, error) {
	json, err := json.Marshal(cb.Bool)
	return json, err
}

type Target struct {
	Id     int        `json:"id"`
	Active CustomBool `json:"active"`
}

func main() {
	jsonString := `[{"id":1,"active":true},
					{"id":2,"active":"true"},
					{"id":3,"active":"1"},
					{"id":4,"active":1},
					{"id":5,"active":false},
					{"id":6,"active":"false"},
					{"id":7,"active":"0"},
					{"id":8,"active":0},
					{"id":9,"active":""}]`

	targets := []Target{}

	_ = json.Unmarshal([]byte(jsonString), &targets)

	for _, t := range targets {
		fmt.Println(t.Id, "-", t.Active.Bool)
	}

	jsonStringNew, _ := json.Marshal(targets)
	fmt.Println(string(jsonStringNew))
}

1 - true
2 - true
3 - true
4 - true
5 - false
6 - false
7 - false
8 - false
9 - false
[{"id":1,"active":true},{"id":2,"active":true},{"id":3,"active":true},{"id":4,"active":true},{"id":5,"active":false},{"id":6,"active":false},{"id":7,"active":false},{"id":8,"active":false},{"id":9,"active":false}]

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