Bool rules

BoolRules describes the constraints applied to bool values. These rules may also be applied to the google.protobuf.BoolValue Well-Known-Type.

const

const requires the field value to exactly match the specified boolean value. If the field value doesn't match, an error message is generated.

bool.const example

message MyBool {
  // value must equal true
  bool value = 1 [(buf.validate.field).bool.const = true];
}

example

example specifies values that the field may have. These values SHOULD conform to other constraints. example values will not impact validation but may be used as helpful guidance on how to populate the given field.

bool.example example

message MyBool {
  bool value = 1 [
    (buf.validate.field).bool.example = 1,
    (buf.validate.field).bool.example = 2
  ];
}