hello.proto

syntax = "proto3";

package demo;

import "google/protobuf/empty.proto";
import "google/protobuf/timestamp.proto";

// Service demo.
//
// All leading comments will be copied to markdown.
service Demo {
    // Rpc demo
    //
    // All leading comments will be copied to markdown.
    rpc Echo1(Foo) returns (google.protobuf.Empty) {}
    // Another rpc demo
    rpc Echo2(google.protobuf.Empty) returns (Foo) {}
}

// Leading comments of message will be ignored.
message Foo {
    // boolean value demo
    bool a = 1;
    // 32 bit int value demo
    int32 b = 2;
    // 64 bit int value demo
    int64 c = 3; // stored as string
    // float value demo
    double d = 4;
    // string value demo
    string e = 5;
    // bytes value demo
    bytes f = 6; // stored as base64 string
    // message value demo
    Bar g = 7;
    // imported message value demo
    google.protobuf.Timestamp h = 8;
}

message Bar {
    // string list value demo
    repeated string a = 1;
    // map value demo
    map<int32,string> b = 2;
    // self reference value demo
    Baz c = 3;
    enum Sex {
        Unknown = 0;
        Male = 1;
        Female = 2;
    }
    // enum value demo
    Sex d = 4;
    // message list value demo
    repeated Person e = 5;
}

message Baz {
    Bar a = 1; // self-referenced message will be displayed as {}
}

message Person {
    string name = 1;
    int32 age = 2;
}