Initial

httperror/error.go

@@ -0,0 +1,72 @@
+package httperror
+
+import (
+	"fmt"
+)
+
+var (
+	INVALID_DATE_FORMAT  = ErrorCode("InvalidDateFormat")
+	INVALID_FORMAT       = ErrorCode("InvalidFormat")
+	INVALID_REFERENCE    = ErrorCode("InvalidReference")
+	NOT_NULLABLE         = ErrorCode("NotNullable")
+	NOT_UNIQUE           = ErrorCode("NotUnique")
+	MIN_LIMIT_EXCEEDED   = ErrorCode("MinLimitExceeded")
+	MAX_LIMIT_EXCEEDED   = ErrorCode("MaxLimitExceeded")
+	MIN_LENGTH_EXCEEDED  = ErrorCode("MinLengthExceeded")
+	MAX_LENGTH_EXCEEDED  = ErrorCode("MaxLengthExceeded")
+	INVALID_OPTION       = ErrorCode("InvalidOption")
+	INVALID_CHARACTERS   = ErrorCode("InvalidCharacters")
+	MISSING_REQUIRED     = ErrorCode("MissingRequired")
+	INVALID_CSRF_TOKEN   = ErrorCode("InvalidCSRFToken")
+	INVALID_ACTION       = ErrorCode("InvalidAction")
+	INVALID_BODY_CONTENT = ErrorCode("InvalidBodyContent")
+	INVALID_TYPE         = ErrorCode("InvalidType")
+	ACTION_NOT_AVAILABLE = ErrorCode("ActionNotAvailable")
+	INVALID_STATE        = ErrorCode("InvalidState")
+	SERVER_ERROR         = ErrorCode("ServerError")
+)
+
+type ErrorCode string
+
+type APIError struct {
+	code      ErrorCode
+	message   string
+	Cause     error
+	fieldName string
+}
+
+func NewAPIError(code ErrorCode, message string) error {
+	return &APIError{
+		code:    code,
+		message: message,
+	}
+}
+
+func NewFieldAPIError(code ErrorCode, fieldName, message string) error {
+	return &APIError{
+		code:      code,
+		message:   message,
+		fieldName: fieldName,
+	}
+}
+
+func WrapFieldAPIError(err error, code ErrorCode, fieldName, message string) error {
+	return &APIError{
+		Cause: err,
+		code:      code,
+		message:   message,
+		fieldName: fieldName,
+	}
+}
+
+func WrapAPIError(err error, code ErrorCode, message string) error {
+	return &APIError{
+		code:    code,
+		message: message,
+		Cause:   err,
+	}
+}
+
+func (a *APIError) Error() string {
+	return fmt.Sprintf("%s: %s", a.code, a.message)
+}