51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
package request
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import (
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errors2 "errors"
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"github.com/go-playground/validator/v10"
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"reflect"
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)
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var validate *validator.Validate
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func ValidateAndHandleError(req interface{}) error {
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validate = validator.New()
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if err := validate.Struct(req); err != nil {
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formattedError := formatValidationError(err)
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return errors2.New(formattedError)
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}
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return nil
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}
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func formatValidationError(err error) string {
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if _, ok := err.(*validator.InvalidValidationError); ok {
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return err.Error()
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}
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var errorMessage string
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for _, err := range err.(validator.ValidationErrors) {
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switch err.Tag() {
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case "required":
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errorMessage += "The field '" + err.Field() + "' is required."
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case "min":
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if err.Kind() == reflect.Slice {
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errorMessage += "The field '" + err.Field() + "' must contain at least " + err.Param() + " items."
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} else {
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errorMessage += "The field '" + err.Field() + "' must be at least " + err.Param() + "."
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}
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case "oneof":
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errorMessage += "The field '" + err.Field() + "' must be one of [" + err.Param() + "]."
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case "email":
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errorMessage += "The field '" + err.Field() + "' must be a valid email address."
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case "len":
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errorMessage += "The field '" + err.Field() + "' must be exactly " + err.Param() + " characters long."
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default:
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errorMessage += "The field '" + err.Field() + "' is invalid."
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}
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errorMessage += " "
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}
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return errorMessage
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}
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