Smartbotic Database

A standalone key-value document database with gRPC API, designed for microservice architectures.

Features

Document Storage - JSON document store with collections
Health Check - gRPC HealthCheck() RPC for service status verification
Replication - Multi-master replication via StorageReplication gRPC service
Persistence - WAL (Write-Ahead Log) + snapshots with LZ4 compression
Encryption - Field-level AES-256-GCM encryption for sensitive data
Events - Pub/sub event subscription for real-time updates
File Storage - Binary file management with streaming support
Migrations - Declarative JSON-based schema migrations

Architecture

smartbotic-database/
├── client/           # Client library (injectable into projects)
├── service/          # Database service (standalone deployable)
├── proto/            # gRPC protocol buffer definitions
└── packaging/        # Docker build and systemd files

Building

Standalone Build

cmake -B build -G Ninja
ninja -C build

As Embedded Submodule

When used as a submodule, configure build options:

set(SMARTBOTIC_DB_BUILD_CLIENT ON)   # Always need client
set(SMARTBOTIC_DB_BUILD_SERVICE ON)  # Optional: include service binary
add_subdirectory(external/smartbotic-database)

Configuration

{
  "database": {
    "bind_address": "0.0.0.0",
    "rpc_port": 9004,
    "data_directory": "/var/lib/smartbotic/database",
    "migrations": {
      "enabled": true,
      "directory": "/etc/smartbotic/migrations",
      "auto_apply": true
    },
    "persistence": {
      "wal_sync_interval_ms": 100,
      "snapshot_interval_sec": 3600
    },
    "encryption": {
      "enabled": true,
      "auto_generate_key": true
    },
    "replication": {
      "enabled": false,
      "peers": []
    }
  }
}

Migrations

Create JSON migration files in the migrations directory:

{
  "version": "001",
  "name": "create_users",
  "description": "Create users collection",
  "operations": [
    {
      "type": "create_collection",
      "collection": "users",
      "options": {"encrypted": true}
    }
  ]
}

Supported operations:

create_collection - Create collection if not exists
drop_collection - Drop collection (requires confirm: true)
insert - Insert document (fails if exists)
insert_if_not_exists - Insert only if ID doesn't exist
upsert - Insert or update document
update - Update existing document
delete - Delete document

CMake Targets

Target	Description
`smartbotic_db_proto`	Generated protobuf/gRPC code
`smartbotic-db-client`	Client library
`smartbotic-database`	Service executable

License

Proprietary - Smartbotics AI

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