nocon-db
v0.1.5
Published
NoSQL local file storage with constraints -- unique keys, null check and indexing, akin to SQLite, with API similar to liteorm
Downloads
2
Readme
nocon-db
NoSQL local file storage with constraints -- unique keys, null check and indexing, akin to SQLite, with API similar to liteorm. Powered by TypeScript decorators and interface. Also with async event-emitter, thanks to emittery.
Can save as BSON with BsonAdapter
.
Filtering and mapping with objects (in find
, update
, delete
) is possible, thanks to lodash
.
If you need typings, you can also enforce constraints
.
Usage
import { Db } from "nocon-db";
(async () => {
const db = new Db("foo.nocon");
await db.load();
const col = db.collection<any>("bar");
await col.insert({a: 1, b: new Date()});
console.log(await col.find({a: 1}));
})();
You can even define Schema and unique keys. In this case, you will need to use Class decorators.
import { Db, prop, Table, BsonAdapter } from "nocon-db";
@Table()
class UniqueA {
@prop({unique: true}) a!: string;
b!: Date;
}
(async () => {
let db = new Db("test.nocon", new BsonAdapter());
await db.load();
const col = db.collection(new UniqueA());
await col.insert({a: "any", b: new Date()});
console.log(await col.find());
await db.close();
db = new Db("test.nocon", new BsonAdapter());
await db.load();
const col = db.collection(new UniqueA());
await col.insert({a: "any", b: new Date()}); // Error
})();