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Protocol Buffers Schema (proto3)

A proto3 Protocol Buffers schema with messages, an enum, and a repeated field — for testing protobuf compilers (protoc), codegen, and schema tooling.

Preview — first 31 linesproto
syntax = "proto3";

package novus.example.v1;

// A tiny example schema for testing protobuf tooling and codegen.

message User {
  int64 id = 1;
  string name = 2;
  string email = 3;
  Role role = 4;
}

enum Role {
  ROLE_UNSPECIFIED = 0;
  ROLE_ADMIN = 1;
  ROLE_MEMBER = 2;
  ROLE_GUEST = 3;
}

message ListUsersRequest {
  int32 page = 1;
  int32 page_size = 2;
}

message ListUsersResponse {
  int32 page = 1;
  int32 total = 2;
  repeated User items = 3;
}

Specifications

Format
Protocol Buffers (proto3)
Messages
3
Enum
Role

What is a .proto file?

Proto files define Protocol Buffers schemas, Google's language-neutral interface definition language for serializing structured data. They declare typed messages, fields, and services that a compiler turns into efficient binary serialization code in many languages. They underpin gRPC and high-performance data interchange.

How to use this file

Use an example proto file to test schema parsers, code generation across languages, and gRPC service or message-definition tooling.

Generated by generation/data_dev_fixtures.py. Free for any use, no attribution required — license.