emster7013/BE-BP-Nodejs

Back-end Boilerplate with Node.js with basic user login

How to Build a Node.js Server Using an SQLite Database

Creating a Git Repository & Adding Dependencies

Create a directory for your server to live

• mkdir < server-directory-name >
• git init
• npx gitignore node //creates git.ignore for node
• npm init -y //creates package.json

Add your dependencies

• npm i express helmet cors knex sqlite3 dotenv pg bcryptjs* jsonwebtoken*
• npm i nodemon -D

* only if using database with login/register

• Update package.json scripts to include server (and start) script(s):

"scripts": {
	"server": "nodemon",  //defaults to index.js
	"start": "node index.js" (optional, for production)
}

Adding Migrations & Seeding

• npx knex init //creates an abstracted knexfile.js

• Update knexfile.js to:

module.exports = {
  development: {
    client: 'sqlite3',
    useNullAsDefault: true,
    connection: {
      filename: './data/auth.db3',
    },
    pool: {
      afterCreate: (conn, done) => {
        conn.run('PRAGMA foreign_keys = ON', done);
      },
    },
    migrations: {
      directory: './data/migrations',
    },
    seeds: {
      directory: './data/seeds',
    },
  },
};

Create a table within a migration folder:

• npx knex migrate:make table_name

• Example schema for a user table:

exports.up = function(knex) {
    return knex.schema.createTable('users', users => {
      users.increments();

      users
        .string('username', 128)
        .notNullable()
        .unique();

      users
        .string('password', 128)
        .notNullable();
    });
  };

  exports.down = function(knex) {
    return knex.schema.dropTableIfExists('users');
  };

• npx knex migrate:latest (creates .db3 file)
• npx knex migrate:rollback (deletes .db3 file)

Seeding (optional):

• npx knex seed:make 001-seedName (makes a new seed)

• Example seeds > 001-exampleSeed.js file:

exports.seed = function(knex, Promise) {
  // Deletes ALL existing entries
  return knex('table_name').truncate()
    .then(function () {
      // Inserts seed entries
      return knex('table_name').insert([
        { username: 'Amanda', password: '123' },
        { username: 'Herman', password: 'password'  },
        { username: 'Boo', password: 'hello'  }
      ]);
    });
};

• npx knex seed:run (runs/resets seed)

Creating Server, Routes and Helper Functions

• In the data directory, create a file called "dbConfig.js" and include the following code:

const knex = require('knex');

const knexConfig = require('../knexfile.js');

module.exports = knex(knexConfig.development);

• Review the code in this repository for more information.

< -------- after forking and cloning this repo ---------->

• run command npm install to get your dependencies listed above.
• If you fork and clone this repo you do not need to follow README steps, they are already completed.