app.js

// require libraries
const express = require('express');
const mongoose = require('mongoose');
const AdminJS = require('adminjs');
const AdminJSExpress = require('@adminjs/express');
const AdminJSMongoose = require('@adminjs/mongoose');
AdminJS.registerAdapter(AdminJSMongoose);

// app config
const config = require("./config");

// config adminJS
const { PositionResourceOptions } = require("./position/position.options");
const { CandidateResourceOptions } = require("./candidate/candidate.options");
const { InterviewResourceOptions } = require("./interview/interview.options");
const { EmailResourceOptions } = require("./email/email.options");

const adminJS = new AdminJS({
    databases: [],
    rootPath: '/admin',
    resources: [PositionResourceOptions, EmailResourceOptions, CandidateResourceOptions, InterviewResourceOptions],
    branding: {
        companyName: 'Hiring Management App', // title of page
        logo: false,    // don't use adminJS default logo
        softwareBrothers: false, // hide adminJS link
        // favicon: ""
    },
    version: {
        app: "Version 1.0.0"
    },
    assets: {
        styles: ["/public/static/react-funnel-pipeline.css"] // custom css files
    },
    dashboard: {
        handler: async (request, response, context) => {
            return { success: true, errorSet: [] }; // dashboard cannot receive props...
        },
        component: AdminJS.bundle('./public/pages/dashboard.jsx')
    },
});
adminJS.watch();
const adminJSRouter = AdminJSExpress.buildRouter(adminJS);

// mount adminJS route and run express app
const app = express();
mongoose.connect(`${config.CONNECTION_STRING}`);
app.use(adminJS.options.rootPath, adminJSRouter);

// custom route
const emailRoute = require("./email/email.route");
const statsRoute = require("./stats/stats.route");
app.use(express.json()); // after mounting adminJS route to avoid conflict
app.use("/emails", emailRoute);
app.use("/stats", statsRoute);
app.use("/public", express.static('public'));

// error handler
app.use(function (err, req, res, next) {
    console.error(err.stack)
    res.status(500).json({ success: false, message: "INTERNAL_ERROR" });
});

app.listen(8080, () => console.log('AdminJS is under localhost:8080/admin'));