status-im/status-go

package errors

import (
    "encoding/json"
)

// ErrorCode represents a specific error code.
type ErrorCode string

// ErrorResponse represents an error response structure.
type ErrorResponse struct {
    Code    ErrorCode `json:"code"`
    Details string    `json:"details,omitempty"`
}

// Error implements the error interface for ErrorResponse.
func (e *ErrorResponse) Error() string {
    errorJSON, _ := json.Marshal(e)
    return string(errorJSON)
}

// CreateErrorResponseFromError creates an ErrorResponse from a generic error.
func CreateErrorResponseFromError(err error) error {
    if err == nil {
        return nil
    }
    if errResp, ok := err.(*ErrorResponse); ok {
        return errResp
    }
    return &ErrorResponse{
        Code:    "0",
        Details: err.Error(),
    }
}