kt3k / denodb

MySQL, SQLite, MariaDB, PostgreSQL and MongoDB ORM for Deno

DenoDB

• 🗣Supports PostgreSQL, MySQL, MariaDB, SQLite and MongoDB
• 🔥Simple, typed API
• 🦕Deno-ready
• Read the documentation

import { DataTypes, Database, Model, PostgresConnector } from 'https://deno.land/x/denodb/mod.ts';

const connection = new PostgresConnector({
  host: '...',
  username: 'user',
  password: 'password',
  database: 'airlines',
});

const db = new Database(connection);

class Flight extends Model {
  static table = 'flights';
  static timestamps = true;

  static fields = {
    id: { primaryKey: true, autoIncrement: true },
    departure: DataTypes.STRING,
    destination: DataTypes.STRING,
    flightDuration: DataTypes.FLOAT,
  };

  static defaults = {
    flightDuration: 2.5,
  };
}

db.link([Flight]);

await db.sync({ drop: true });

await Flight.create({
  departure: 'Paris',
  destination: 'Tokyo',
});

// or

const flight = new Flight();
flight.departure = 'London';
flight.destination = 'San Francisco';
await flight.save();

await Flight.select('destination').all();
// [ { destination: "Tokyo" }, { destination: "San Francisco" } ]

await Flight.where('destination', 'Tokyo').delete();

const sfFlight = await Flight.select('destination').find(2);
// { destination: "San Francisco" }

await Flight.count();
// 1

await Flight.select('id', 'destination').orderBy('id').get();
// [ { id: "2", destination: "San Francisco" } ]

await sfFlight.delete();

await db.close();

First steps

Setting up your database with DenoDB is a four-step process:

• Create a database, using Database (learn more about clients):

  const connection = new PostgresConnector({
    host: '...',
    username: 'user',
    password: 'password',
    database: 'airlines',
  });
  
  const db = new Database(connection);

• Create models, extending Model. table and fields are both required static attributes:

  class User extends Model {
    static table = 'users';
  
    static timestamps = true;
  
    static fields = {
      id: {
        primaryKey: true,
        autoIncrement: true,
      },
      name: DataTypes.STRING,
      email: {
        type: DataTypes.STRING,
        unique: true,
        allowNull: false,
        length: 50,
      },
    };
  }

• Link your models, to add them to your database instance:

  db.link([User]);

• Optional: Create tables in your database, by using sync(...):

  await db.sync();

• Query your models!

  await User.create({ name: 'Amelia' });
  await User.all();
  await User.deleteById('1');

Migrate from previous versions

• v1.0.21: Migrate to connectors

License

MIT License — eveningkid