Exar DB's Core

An event store with streaming support, it uses flat-file based collections.

Documentation

lib.rs:

Exar DB

Exar DB is an event store with streaming support which uses a flat-file for each collection of events

Database Initialization

extern crate exar;

use exar::*;

let config = DatabaseConfig::default();
let mut db = Database::new(config);

Publishing events

extern crate exar;

use exar::*;

let config = DatabaseConfig::default();
let mut db = Database::new(config);

let collection_name = "test";
let connection = db.connect(collection_name).unwrap();

match connection.publish(Event::new("payload", vec!["tag1", "tag2"])) {
    Ok(event_id) => println!("Published event with ID: {}", event_id),
    Err(err) => panic!("Unable to publish event: {}", err)
};

Querying events

extern crate exar;

use exar::*;

let config = DatabaseConfig::default();
let mut db = Database::new(config);

let collection_name = "test";
let connection = db.connect(collection_name).unwrap();

let query = Query::live().offset(0).limit(10).by_tag("tag1");
let event_stream = connection.subscribe(query).unwrap();
for event in event_stream {
    println!("Received event: {}", event);
}