multiple response in single array in golang

Question

I am new to golang. and I want to get my response as multiple result. I do some method but I need to change that one

impartErrl := ph.profileService.ValidateSchema(gojsonschema.NewStringLoader(string(b)))
        if impartErrl != nil {
            ctx.JSON(http.StatusBadRequest, impart.ErrorResponse(impartErrl))
            return
        }

---

func (ps *profileService) ValidateSchema(document gojsonschema.JSONLoader) (errors []impart.Error) {
    result, err := gojsonschema.Validate(ps.schemaValidator, document)
    if err != nil {
        ps.SugaredLogger.Error(err.Error())
        return impart.ErrorResponse(
            impart.NewError(impart.ErrBadRequest, "unable to validate schema"),
        )
    }

    if result.Valid() {
        return nil
    }
    // msg := fmt.Sprintf("%v validations errors.\n", len(result.Errors()))
    msg := "validations errors"
    for i, desc := range result.Errors() {
        msg += fmt.Sprintf("%v: %s\n", i, desc)
        er := impart.NewError(impart.ErrValidationError, fmt.Sprintf("%s ", desc), impart.ErrorKey(desc.Field()))
        errors = append(errors, er)
    }
    return errors
}

---

func NewError(err error, msg string, args ...interface{}) Error {
    key := GetErrorKey(args...)
    return impartError{
        err: err,
        msg: msg,
        key: key,
    }
}

---

func ErrorResponse(err interface{}) []Error {
    var errorResponse []Error
    switch err.(type) {
    case Error:
        errorResponse = []Error{err.(Error)}
    case []Error:
        errorResponse = err.([]Error)
    default:
        errorResponse = []Error{
            NewError(ErrUnknown, fmt.Sprintf("%v", err)),
        }
    }
    return errorResponse
}

---

type Error interface {
    error
    HttpStatus() int
    ToJson() string
    Err() error
    Msg() string
}

Now I am getting the output as

[
    {
        "error": "validation error",
        "msg": "email: Does not match format 'email' ",
        "key": "email"
    },
    {
        "error": "validation error",
        "msg": "screenName: String length must be greater than or equal to 4 ",
        "key": "screenName"
    }
]

but I require my response as

{
     0 :{
            "error": "validation error",
            "msg": "email: Does not match format 'email' ",
            "key": "email"
        },
    1 : {
        "error": "unable to complete the request",
        "msg": "invalid screen name, must be alphanumeric characters only",
        "key": "screen_name"
    }

}

How can I get these type of response. ? because in ios app while parsing the response [] showing error. so I need to change the output.

please help me.

Answer 1

The ErrorResponse func should return a map[int]Error instead of []Error . As Example:

func ErrorResponse(err interface{}) map[int]Error {
    errorResponse := map[int]Error{}
    switch e := err.(type) {
    case Error:
        errorResponse[0] = e
    case []Error:
        for i, k := range e {
            errorResponse[i] = k
        }
    default:
        errorResponse[0] = NewError(ErrUnknown, fmt.Sprintf("%v", err))
    }
    return errorResponse
}