Smartbotic Database Integration Guide

How to install, configure, and integrate smartbotic-database into your C++ project.

Installing the Database
Installing the Client Library
Integrating into a C++ Project
Client API Reference
Configuration
Migrations
Docker Build Integration
CLI Administration
Upgrading from Legacy Packages

Installing the Database

From APT Repository

Add the Smartbotics repository to your system:

# Download GPG key
curl -fsSL https://repository.smartbotics.ai/smartbotics-repo.gpg | \
    sudo gpg --dearmor -o /usr/share/keyrings/smartbotics-repo.gpg

# Configure authentication
sudo tee /etc/apt/auth.conf.d/smartbotics.conf << EOF
machine repository.smartbotics.ai
login callerai
password <repo-password>
EOF
sudo chmod 600 /etc/apt/auth.conf.d/smartbotics.conf

# Add repository
echo "deb [signed-by=/usr/share/keyrings/smartbotics-repo.gpg] https://repository.smartbotics.ai trixie main" | \
    sudo tee /etc/apt/sources.list.d/smartbotics.list

# Install
sudo apt update
sudo apt install smartbotic-database

This installs:

/usr/bin/smartbotic-database — the server binary
/etc/smartbotic-database/config.json — configuration file
smartbotic-database.service — systemd service (starts automatically)

The service listens on localhost:9004 by default.

Verify Installation

# Check service status
sudo systemctl status smartbotic-database

# Check health via CLI (if installed)
smartbotic-db-cli health

Available Packages

Package	What it provides	Install when...
`smartbotic-database`	Server + systemd service	You need to run the database on this machine
`libsmartbotic-db-client`	Shared library (`.so`)	Your application links the client at runtime
`libsmartbotic-db-client-dev`	Headers + cmake config	You're building a C++ project against the client API
`smartbotic-db-cli`	CLI admin tool	You want to administer the database from the command line

Installing the Client Library

On a Development Machine (for local builds)

sudo apt install libsmartbotic-db-client-dev

This pulls in libsmartbotic-db-client (the runtime .so) as a dependency, plus all development headers needed to compile.

On a Production Machine (runtime only)

sudo apt install libsmartbotic-db-client

Only the shared library — no headers, no cmake config, no dev tooling.

Integrating into a C++ Project

Option A: System-installed package (recommended for Docker builds)

If libsmartbotic-db-client-dev is installed (e.g., in your Docker build image):

# CMakeLists.txt
find_package(smartbotic-db-client REQUIRED)

add_executable(myapp main.cpp)
target_link_libraries(myapp PRIVATE smartbotic::db-client)

The smartbotic::db-client target automatically sets up include paths and links the shared library.

Option B: Git submodule (for local development on non-Debian systems)

git submodule add ssh://git@git.smartbotics.ai:10022/fszontagh/smartbotic-database.git \
    external/smartbotic-database

# CMakeLists.txt
add_subdirectory(external/smartbotic-database)

add_executable(myapp main.cpp)
target_link_libraries(myapp PRIVATE smartbotic-db-client)

When built as a submodule, the library is static (.a) and linked directly into your binary.

Option C: Both (recommended)

Use the system package when available, fall back to submodule:

# Try system-installed first (Docker builds, CI)
find_package(smartbotic-db-client QUIET)
if(smartbotic-db-client_FOUND)
    message(STATUS "Using system smartbotic-db-client")
    set(DB_CLIENT_TARGET smartbotic::db-client)
else()
    # Fall back to submodule (local development)
    if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/external/smartbotic-database/CMakeLists.txt")
        add_subdirectory(external/smartbotic-database)
        set(DB_CLIENT_TARGET smartbotic-db-client)
    else()
        message(FATAL_ERROR
            "smartbotic-database not found. Either:\n"
            "  apt install libsmartbotic-db-client-dev\n"
            "  git submodule update --init external/smartbotic-database")
    endif()
endif()

add_executable(myapp main.cpp)
target_link_libraries(myapp PRIVATE ${DB_CLIENT_TARGET})

Client API Reference

Connecting

#include <smartbotic/database/client.hpp>

smartbotic::database::Client::Config config;
config.address = "localhost:9004";   // gRPC endpoint
config.timeoutMs = 5000;            // per-RPC timeout
config.maxRetries = 3;              // auto-retry on transient failures

smartbotic::database::Client db(config);
if (!db.connect()) {
    // handle connection failure
}

Document Operations

// Insert
nlohmann::json doc = {{"name", "Alice"}, {"email", "alice@example.com"}};
std::string id = db.insert("users", doc);
// Or with explicit ID:
std::string id = db.insert("users", doc, "user-123");

// Get
auto result = db.get("users", "user-123");
if (result) {
    std::cout << (*result)["name"] << std::endl;
}

// Update (full document replacement, with automatic optimistic locking)
db.update("users", "user-123", {{"name", "Alice Smith"}, {"email", "alice@example.com"}});

// Update with explicit optimistic locking (fails if version changed)
db.updateIfVersion("users", "user-123", {{"name", "Alice"}}, /*expectedVersion=*/2);

// Patch — atomic partial update (only specified fields are modified)
uint64_t newVer = db.patch("users", "user-123", {{"name", "Alice Smith"}});

// Upsert (insert or update)
auto [uid, isNew] = db.upsert("users", doc, "user-123");

// Delete
db.remove("users", "user-123");

// Check existence
bool found = db.exists("users", "user-123");

Concurrency: update() vs patch()

When multiple clients modify the same document concurrently, choose the right method:

patch() — use for most updates (recommended). Merges only the specified fields on the server, atomically. Two clients can safely modify different fields simultaneously:

// Client A:                                    // Client B:
db.patch("users", "user-123",                   db.patch("users", "user-123",
    {{"name", "Alice Smith"}});                      {{"email", "alice@new.com"}});
// Result: both fields updated, nothing lost

update() — full document replacement with automatic retry. Uses optimistic locking internally (reads current version, writes with version check, retries on conflict). Use when you need to replace the entire document:

auto doc = db.get("users", "user-123");
(*doc)["name"] = "Alice Smith";
(*doc)["role"] = "admin";
db.update("users", "user-123", *doc);  // replaces entire document

Note: update() is "last writer wins" for complete replacement — if two clients modify different fields via update(), the last one overwrites the other's changes. Use patch() to avoid this.

updateIfVersion() — explicit optimistic locking. Use when you need to detect conflicts and handle them yourself:

auto doc = db.get("users", "user-123");
uint64_t version = (*doc)["_version"];
(*doc)["balance"] = (*doc)["balance"].get<int>() + 100;
if (!db.updateIfVersion("users", "user-123", *doc, version)) {
    // Version conflict — someone else modified the document
    // Re-read and retry, or report error to user
}

Querying

// Find with filters
smartbotic::database::Client::QueryOptions opts;
opts.filters = {{"status", "active"}, {"role", "admin"}};
opts.sortField = "name";
opts.sortDescending = false;
opts.limit = 50;
opts.offset = 0;

auto docs = db.find("users", opts);
for (const auto& doc : docs) {
    std::cout << doc["name"] << std::endl;
}

// Find all documents in a collection
auto allDocs = db.find("users");

// Count
uint64_t total = db.count("users");
uint64_t admins = db.count("users", {{"role", "admin"}});

Collection Management

// Create a basic collection
db.createCollection("users");

// Create with options
db.createCollection("sessions",
    /*defaultTtlSeconds=*/3600,    // auto-expire after 1 hour
    /*encrypted=*/false,
    /*maxVersions=*/5,             // keep last 5 versions
    /*vectorDimension=*/0);        // no vector support

// Create vector-enabled collection
db.createCollection("memories",
    /*defaultTtlSeconds=*/0,
    /*encrypted=*/false,
    /*maxVersions=*/0,
    /*vectorDimension=*/384);      // 384-dim embeddings

// List and inspect
auto collections = db.listCollections();
auto info = db.getCollectionInfo("users");
if (info) {
    std::cout << "Documents: " << info->documentCount << std::endl;
}

// Drop
db.dropCollection("old_data");

Vector Similarity Search

Requires a collection created with vectorDimension > 0.

// Insert documents with embeddings
nlohmann::json doc = {
    {"id", "mem-1"},
    {"content", "The user prefers dark mode"},
    {"_vector", embedding}   // std::vector<float>, size must match vectorDimension
};
db.insert("memories", doc, "mem-1");

// Search
std::vector<float> queryVec = getEmbedding("user preferences");
auto results = db.similaritySearch("memories", queryVec, /*topK=*/5, /*minScore=*/0.7f);

for (const auto& r : results) {
    std::cout << r.id << " (score=" << r.score << "): "
              << r.data["content"] << std::endl;
}

Notes:

_vector is extracted and stored separately — not returned in get() or find() responses
Dimension is validated on every insert — mismatches are rejected
SIMD-accelerated (AVX2/SSE4.1) brute-force cosine similarity

Version History

// Get history
auto history = db.getVersionHistory("users", "user-123", /*limit=*/10);
for (const auto& v : history.versions) {
    std::cout << "v" << v.version << " by " << v.updatedBy
              << " at " << v.timestamp << std::endl;
}

// Get a specific version
auto oldVersion = db.getDocumentVersion("users", "user-123", /*version=*/2);

// Restore to a previous version
uint64_t newVer = db.restoreVersion("users", "user-123", /*version=*/2);

// Restore to a point in time
auto [fromVer, newVersion] = db.restoreToDate("users", "user-123", timestamp);

File Storage

Two-level storage with content-addressed blob deduplication. Identical files are stored once.

// Upload
std::vector<uint8_t> data = readFile("photo.jpg");
smartbotic::database::Client::FileUploadMeta meta;
meta.name = "photo.jpg";
meta.mime_type = "image/jpeg";
meta.file_type = "document";        // "plugin", "document", "generated"
meta.related_id = "conversation-1";
meta.is_public = false;

auto result = db.uploadFile(data, meta);
std::cout << "File ID: " << result.id
          << " Deduplicated: " << result.deduplicated << std::endl;

// Download
auto fileData = db.downloadFile(result.id);

// Get file info
auto fileInfo = db.getFileInfo(result.id);

// List files
auto files = db.listFiles(
    /*file_type=*/"document",
    /*related_id=*/"conversation-1",
    /*limit=*/100, /*offset=*/0,
    /*checksum=*/"",
    /*name=*/"photo.jpg");

// Delete
db.deleteFile(result.id);

Event Subscription

auto subscription = db.subscribe({"users", "sessions"}, [](
    const std::string& collection,
    const std::string& id,
    const std::string& eventType,
    const std::optional<nlohmann::json>& data) {

    std::cout << eventType << " on " << collection << "/" << id << std::endl;
});

// Unsubscribe by releasing the handle
subscription.reset();

Set Operations

Redis-compatible set operations on top of documents.

db.setAdd("tags", "user-123", "admin");
db.setAdd("tags", "user-123", "active");

auto members = db.setMembers("tags", "user-123");
bool isAdmin = db.setIsMember("tags", "user-123", "admin");

db.setRemove("tags", "user-123", "active");

Health & Statistics

// Quick health check
if (db.healthCheck()) {
    std::cout << "Database is healthy" << std::endl;
}

// Detailed health
auto health = db.getHealthInfo();
if (health) {
    std::cout << "Uptime: " << health->uptimeMs << "ms"
              << " Docs: " << health->documentCount << std::endl;
}

// Full statistics
auto stats = db.getStats();
if (stats) {
    std::cout << "Memory: " << stats->memoryUsedBytes << " bytes"
              << " Insert avg: " << stats->insertAvgMicros() << " us" << std::endl;
}

Configuration

The server configuration file is at /etc/smartbotic-database/config.json.

Default Configuration

{
  "log_level": "info",
  "storage": {
    "bind_address": "localhost",
    "rpc_port": 9004,
    "node_id": "smartbotic-db",
    "data_directory": "/var/lib/smartbotic-database",
    "memory": {
      "max_memory_mb": 512,
      "eviction_threshold_percent": 80,
      "eviction_target_percent": 60,
      "eviction_check_interval_ms": 5000
    },
    "persistence": {
      "wal_sync_interval_ms": 100,
      "snapshot_interval_sec": 3600,
      "compression": "lz4"
    },
    "encryption": {
      "enabled": true,
      "key_file": "/var/lib/smartbotic-database/storage.key",
      "auto_generate_key": true
    },
    "migrations": {
      "enabled": false,
      "directory": "/etc/smartbotic-database/migrations",
      "auto_apply": false
    },
    "files": {
      "max_file_size_mb": 500,
      "cleanup_orphans_interval_sec": 3600
    },
    "replication": {
      "enabled": false
    }
  }
}

Key Settings

Setting	Default	Description
`bind_address`	`localhost`	Change to `0.0.0.0` to accept remote connections
`rpc_port`	`9004`	gRPC listen port
`data_directory`	`/var/lib/smartbotic-database`	WAL, snapshots, files stored here
`memory.max_memory_mb`	`512`	Maximum memory for document cache. Evicts LRU when exceeded
`persistence.snapshot_interval_sec`	`3600`	Full snapshot every N seconds (WAL truncated after)
`encryption.enabled`	`true`	Field-level AES-256-GCM encryption. Key auto-generated on first start
`migrations.enabled`	`false`	Enable to auto-apply JSON migrations on startup
`migrations.directory`	`/etc/smartbotic-database/migrations`	Path to migration JSON files

Configuring for Your Project

Consumer projects typically enable migrations by configuring the database via their own postinst script:

# Example: in your project's postinst
DB_CONFIG="/etc/smartbotic-database/config.json"
python3 -c "
import json
with open('$DB_CONFIG') as f:
    cfg = json.load(f)
s = cfg['storage']
s['migrations']['enabled'] = True
s['migrations']['directory'] = '/opt/myproject/migrations'
s['migrations']['auto_apply'] = True
with open('$DB_CONFIG', 'w') as f:
    json.dump(cfg, f, indent=2)
"
systemctl restart smartbotic-database

Migrations

Declarative JSON-based schema migrations. Create numbered JSON files in the migrations directory.

Migration File Format

{
  "version": "001",
  "name": "create_users",
  "description": "Create users collection with encryption",
  "operations": [
    {
      "type": "create_collection",
      "collection": "users",
      "options": {
        "encrypted": true,
        "max_versions": 10
      }
    }
  ]
}

Available Operations

Operation	Fields	Description
`create_collection`	`collection`, `options`	Create a new collection. Options: `encrypted`, `max_versions`, `default_ttl_seconds`, `vector_dimension`
`put`	`collection`, `document`	Insert/upsert a document
`delete`	`collection`, `id`	Delete a document
`delete_where_id_prefix`	`collection`, `prefix`	Bulk-delete documents whose ID starts with prefix

Vector-Enabled Collection Migration

{
  "version": "002",
  "name": "create_memories",
  "description": "Create vector-enabled memories collection",
  "operations": [
    {
      "type": "create_collection",
      "collection": "memories",
      "options": {
        "vector_dimension": 384
      }
    }
  ]
}

Note: vector_dimension is immutable after collection creation.

Docker Build Integration

When building your project in Docker for production, install the dev package in your base image instead of compiling the submodule from source.

Dockerfile.base Example

FROM debian:trixie

# Add Smartbotics APT repository
COPY smartbotics-repo.gpg /usr/share/keyrings/
RUN echo "deb [signed-by=/usr/share/keyrings/smartbotics-repo.gpg] \
    https://repository.smartbotics.ai trixie main" \
    > /etc/apt/sources.list.d/smartbotics.list

# Configure authentication
ARG REPO_USER=callerai
ARG REPO_PASS
RUN printf "machine repository.smartbotics.ai\nlogin %s\npassword %s\n" \
    "$REPO_USER" "$REPO_PASS" > /etc/apt/auth.conf.d/smartbotics.conf && \
    chmod 600 /etc/apt/auth.conf.d/smartbotics.conf

# Install client dev package (pulls shared lib as dependency)
RUN apt-get update && apt-get install -y \
    libsmartbotic-db-client-dev \
    && rm -rf /var/lib/apt/lists/*

Then your project's CMake uses find_package(smartbotic-db-client REQUIRED) and links against the pre-built shared library.

Production Dockerfile

Your project's production .deb should declare:

Depends: smartbotic-database (>= 1.2.0), libsmartbotic-db-client (>= 1.2.0), ...

This ensures both the server and runtime library are installed on the target machine.

CLI Administration

Install the CLI tool:

sudo apt install smartbotic-db-cli

The CLI connects to the database via gRPC. It does not require the server installed on the same machine — it can administer a remote instance.

# Connect to default (localhost:9004)
smartbotic-db-cli health

# Connect to a remote instance
smartbotic-db-cli --address 192.168.1.50:9004 health

Upgrading from Legacy Packages

If your machine previously had shadowman-database or callerai-storage installed, the new smartbotic-database package handles the transition automatically:

sudo apt install smartbotic-database

What happens:

dpkg sees Conflicts: shadowman-database / callerai-storage
The old package is removed (its prerm stops the old service)
smartbotic-database is installed
The postinst script detects old data/config and migrates:
- /var/lib/shadowman/data/database/ → /var/lib/smartbotic-database/
- /etc/shadowman/database.json → /etc/smartbotic-database/config.json (paths updated)
- Same for callerai paths

The old data directory is preserved (copied, not moved) so rollback is safe.

Rollback

If something goes wrong:

sudo apt remove smartbotic-database
sudo apt install shadowman-database=1.2.0-14   # or callerai-storage=0.5.18-1

Old packages remain in the repository.

Proto File

The raw .proto file is available at:

Package: /usr/share/smartbotic-database/proto/database.proto
Source: proto/database.proto

This can be used to generate client stubs in other languages (Python, Go, etc.) if needed.

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