saperx/knexfile.js

require('dotenv').config()

module.exports = {

  development: {
    client: 'mysql',
    connection: {
      host: process.env.DB_HOST,
      user: process.env.DB_USER,
      port: process.env.DB_PORT,
      password: process.env.DB_PASS,
      database: process.env.DB_SCHEMA,
      charset: "utf8mb4",
      collation: "utf8mb4_bin",
    },
    migrations: {
      tableName: 'knex_migrations',
      directory: './db/migrations'
    },
    seeds: {
      tableName: 'knex_seeds',
      directory: './db/seeds'
    }
  },
/*
  staging: {
    client: 'postgresql',
    connection: {
      database: 'my_db',
      user: 'username',
      password: 'password'
    },
    pool: {
      min: 2,
      max: 10
    },
    migrations: {
      tableName: 'knex_migrations'
    }
  },

  production: {
    client: 'postgresql',
    connection: {
      database: 'my_db',
      user: 'username',
      password: 'password'
    },
    pool: {
      min: 2,
      max: 10
    },
    migrations: {
      tableName: 'knex_migrations'
    }
  }*/

};