Adding a Sqlite database

I’m trying to add a sqlite database to my electron app that’s based on this boilerplate, but having problems setting it up. I’m wondering what the recommended way is.

My first attempt was to use knex.js. For my use this requires npm installation of knex and sqlite3. However when I run the server, I’m met with a bunch of errors:

I don’t understand these errors. I’m not using the mariasql etc. drivers.

ERROR in ./~/knex/lib/dialects/maria/index.js
Module not found: Error: Cannot resolve module 'mariasql' in /home/shotor/Projects/playground/electron-react-boilerplate/node_modules/knex/lib/dialects/maria
 @ ./~/knex/lib/dialects/maria/index.js 29:11-30

ERROR in ./~/knex/lib/dialects/mysql/index.js
Module not found: Error: Cannot resolve module 'mysql' in /home/shotor/Projects/playground/electron-react-boilerplate/node_modules/knex/lib/dialects/mysql
 @ ./~/knex/lib/dialects/mysql/index.js 35:11-27

ERROR in ./~/knex/lib/dialects/mysql2/index.js
Module not found: Error: Cannot resolve module 'mysql2' in /home/shotor/Projects/playground/electron-react-boilerplate/node_modules/knex/lib/dialects/mysql2
 @ ./~/knex/lib/dialects/mysql2/index.js 33:11-28

ERROR in ./~/knex/lib/dialects/oracle/index.js
Module not found: Error: Cannot resolve module 'oracle' in /home/shotor/Projects/playground/electron-react-boilerplate/node_modules/knex/lib/dialects/oracle
 @ ./~/knex/lib/dialects/oracle/index.js 40:11-28

goes on for a while

My second attempt was to use Sql.js. Requiring only npm install sql.js.

Running the server gives the error:

ERROR in ./~/sql.js/js/sql.js
Module not found: Error: Cannot resolve module 'ws' in /home/shotor/Projects/playground/electron-react-boilerplate/node_modules/sql.js/js
 @ ./~/sql.js/js/sql.js 337:113-126 342:44-57

As an experiment, I try npm install --save ws. Low and behold it builds and I can get data from the sqlite file. But now I keep getting the warnings:

WARNING in ./~/ws/lib/Validation.js
Module not found: Error: Cannot resolve module 'utf-8-validate' in /home/shotor/Projects/playground/electron-react-boilerplate/node_modules/ws/lib
 @ ./~/ws/lib/Validation.js 10:19-44

WARNING in ./~/ws/lib/BufferUtil.js
Module not found: Error: Cannot resolve module 'bufferutil' in /home/shotor/Projects/playground/electron-react-boilerplate/node_modules/ws/lib
 @ ./~/ws/lib/BufferUtil.js 10:19-40

[shotor]

I don’t know where I got this from, and also not 100% sure why it works. Something to do with excluding binaries. Try this:

Add to your webpack.config.base:

import fs from 'fs'

const nodeModules = {}
fs.readdirSync('node_modules')
  .filter(x => {
    return ['.bin'].indexOf(x) === -1
  })
  .forEach(mod => {
    nodeModules[mod] = `commonjs ${mod}`
  })

export default {
...snip...
  externals: [
    nodeModules
  ]
}

edit: found where I got it from http://stackoverflow.com/questions/34912015/webpack-sequelize-sqlite3-error-cannot-find-module-sqlite3

[cottom]

externals must contain the upperCamel name; like ‘node_module’ to ‘nodeModule’