如何在电子的预加载 js 中运行 knex？

Question

I'm trying to load knex in the preload js script instead of in the Main Process

i have though of importing knex from Main Process using module.exports you get new errors

/home/alexander/Deve…enderer/init.js:166 Unable to load preload script: /home/alexander/Develop/Electron/App/app/preload.js

/home/alexander/Deve…enderer/init.js:167 TypeError: Cannot read property 'on' of undefined

When i add this in preload:

//preload js

var knex = require("knex")({
    client: "sqlite3",
    connection: {
        filename: path.join(__dirname, './database.sqlite')
    },
     useNullAsDefault: true
});  

I end up with these errors in the electrons app devtools

/home/alexander/Deve…enderer/init.js:166 Unable to load preload script: /home/alexander/Develop/Electron/App/app/preload.js

/home/alexander/Deve…enderer/init.js:167 ReferenceError: path is not defined (anonymous) @ /home/alexander/Deve…enderer/init.js:167

Answer 1

Your error:

ReferenceError: path is not defined

you use path so try

//preload js
// added path
const path = require("path");

var knex = require("knex")({
    client: "sqlite3",
    connection: {
        filename: path.join(__dirname, './database.sqlite')
    },
     useNullAsDefault: true
});