knexfile.js

const pg = require('pg');
pg.defaults.ssl = true;
require('dotenv').config();

module.exports = {
  development: {
    client: 'sqlite3',
    useNullAsDefault: true,
    connection: {
      filename: './database/howtodb.sqlite3',
    },
    pool: {
      afterCreate: (conn, done) => {
        conn.run('PRAGMA foreign_keys = ON', done);
      },
    },
    migrations: {
      directory: './database/migrations',
    },
    seeds: {
      directory: './database/seeds',
    },
  },
  testing: {
    client: 'pg',
    ssl: true,
    connection: 'postgres://localhost:5432',
    migrations: {
       directory: './database/migrations',
    },
    seeds: {
       directory: './database/seeds',
    },
    useNullAsDefault: true,
  },
  production: {
    client: 'pg',
    connection: process.env.DATABASE_URL,
    ssl: true,
    pool: {
      min: 2,
      max: 50,
    },
    migrations: {
      tableName: 'knex_migrations',
      directory: './database/migrations',
    },
    seeds: {
      directory: './database/seeds',
    },
  },
};