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77 lines (69 loc) · 2.39 KB
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#![forbid(unsafe_code)]
#![warn(missing_docs)]
#![cfg_attr(docsrs, feature(doc_cfg))]
//! Zero-config, single-file, embedded graph database with bi-temporal Datalog queries.
//!
//! Minigraf is the SQLite of graph databases: embedded, no server, no configuration,
//! a single portable `.graph` file. It stores data as Entity-Attribute-Value facts,
//! queries them with [Datalog](https://en.wikipedia.org/wiki/Datalog), and tracks every
//! change with full bi-temporal history (transaction time + valid time).
//!
//! # Installation
//!
//! ```toml
//! [dependencies]
//! minigraf = "0.21"
//! ```
//!
//! # Quick Start
//!
//! ```
//! use minigraf::{Minigraf, BindValue};
//!
//! // Open (or create) a database
//! let db = Minigraf::in_memory().unwrap();
//!
//! // Assert facts
//! db.execute(r#"(transact [[:alice :person/name "Alice"]
//! [:alice :person/age 30]
//! [:alice :friend :bob]
//! [:bob :person/name "Bob"]])"#).unwrap();
//!
//! // Query with Datalog
//! let results = db.execute(r#"
//! (query [:find ?friend-name
//! :where [:alice :friend ?friend]
//! [?friend :person/name ?friend-name]])
//! "#).unwrap();
//!
//! // Explicit transaction — all-or-nothing
//! let mut tx = db.begin_write().unwrap();
//! tx.execute(r#"(transact [[:alice :person/age 31]])"#).unwrap();
//! tx.commit().unwrap();
//!
//! // Time travel — query the state as of transaction 1
//! db.execute("(query [:find ?age :as-of 1 :where [:alice :person/age ?age]])").unwrap();
//! ```
pub mod db;
pub(crate) mod graph;
pub(crate) mod query;
/// Interactive REPL for exploring a [`Minigraf`] database from the command line.
pub mod repl;
pub(crate) mod storage;
pub(crate) mod temporal;
pub(crate) mod wal;
#[cfg(all(target_arch = "wasm32", feature = "browser"))]
#[cfg_attr(docsrs, doc(cfg(all(target_arch = "wasm32", feature = "browser"))))]
pub mod browser;
#[cfg(not(target_arch = "wasm32"))]
pub use db::OpenOptionsWithPath;
pub use db::{Minigraf, OpenOptions, WriteTransaction};
pub use repl::Repl;
// EAV value types — users construct and match on these
pub use graph::types::{EntityId, Value};
// Query result type
pub use query::datalog::executor::QueryResult;
// Bi-temporal query types
pub use query::datalog::types::{AsOf, ValidAt};
// Prepared statements
pub use query::datalog::prepared::{BindValue, PreparedQuery};