Using RawModel in ExpressJS actions.

index.js

const { Model } = require("rawmodel");
const express = require("express");

/** Application context *******************************************************/

class Context {
  constructor() {
    this.db; // imaginary database
  }
  connect() {
    this.db = []; // connect to database
  }
  close() {
    this.db = []; // close database
  }
}

/** Data layer ****************************************************************/

class User extends Model {
  constructor(data = {}) {
    super(data);
    this.defineField("name", {
      validate: [ { validator: "presence", message: "is required" } ],
    });
    this.populate(data);
  }
  async create(ctx) { // stores model data to the imaginary database
    ctx.db.push(this.serialize());
  }
  static async all(ctx) { // returns all documents from the imaginary database
    return ctx.db;
  }
}

/** ExpressJS application *****************************************************/

const ctx = new Context(); // application context instance
const app = express(); // http application instance

app.get("/users", async (req, res, next) => { // route for reading users
  res.json({ "users": await User.all(ctx) });
});

app.post("/users", async (req, res, next) => { // route for creating users

  let user = new User(req.query);
  try {
    await user.validate();
    await user.create(ctx);
  } catch (e) {
    await user.handle(e);
  }

  if (user.isValid()) {
    res.json({ "user": user.serialize() });
  } else {
    res.json({ "errors": user.collectErrors() });
  }
});


/** Application start *********************************************************/

(async () => {
  await ctx.connect(); // connect to database
  app.listen(4444); // start listening
})().catch(() => {
  console.log(err);
  app.close(); // close HTTP connection
  ctx.close(); // close database connection
});