Protocol Buffer Types

Internal

• Protocol Buffer Concepts

String

string some_string = 1;

The default value is empty string (""). The field contains UTF-8 encoded or 7-bit ASCII text.

Boolean

bool some_bool = 1;

The default value is false.

Scalar Number Types

int32

int32 some_int = 1;

The default value is 0.

Bytes

bytes some_bytes = 1;

The default value is the empty byte array.

List (Array)

repeated <some_other_type> <field_name> = <tag>;

Example:

repeated int32 sizes = 1;
repeated string names = 1;

The default value is the empty list.

Enum

The enum must start with the tag 0. The default value is the first value.