Error TypeError: ExtPay is not a function

[PaePongsiriTri]

I use Typescript and Webpack bundle
I follow instructions until 3. Add ExtPay to background.js and then I got an error

background.ts
const ExtPay = require("ExtPay")
const extpay = ExtPay("sample-extension")

TypeError: ExtPay is not a function
Any Idea?

This is my webpack code

webpack.common.js
const path = require('path');
const CopyPlugin = require('copy-webpack-plugin');
const HtmlPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

module.exports = {
entry: {
popup: path.resolve('src/popup/popup.tsx'),
options: path.resolve('src/options/options.tsx'),
background: path.resolve('src/background/background.ts'),
contentScript: path.resolve('src/contentScript/contentScript.ts'),
context: path.resolve('src/contentScript/context.ts'),
},
module: {
rules: [
{
test: /.tsx?$/,
use: 'ts-loader',
exclude: /node_modules/,
},
{
test: /.css$/i,
use: ['style-loader', 'css-loader'],
},
{
test: /.(jpg|jpeg|png|woff|woff2|eot|ttf|svg)$/,
type: 'asset/resource'
}
]
},
resolve: {
extensions: ['.tsx', '.ts', '.js'],
},
plugins: [
new CleanWebpackPlugin({
cleanStaleWebpackAssets: false,
}),
new CopyPlugin({
patterns: [
{
from: path.resolve('src/static'),
to: path.resolve('dist'),
}
]
}),
...getHtmlPlugins([
'popup',
'options'
]),
],
output: {
filename: '[name].js',
path: path.resolve('dist'),
},
optimization: {
splitChunks: {
chunks(chunk) {
return chunk.name !== 'contentScript' && chunk.name !== 'background' && chunk.name != 'context'
}
},
}
}

function getHtmlPlugins(chunks) {
return chunks.map(chunk => new HtmlPlugin({
title: 'React Extension',
filename: ${chunk}.html,
chunks: [chunk],
}))
}

Webpack.dev.js

const { merge } = require('webpack-merge');
const common = require('./webpack.common.js');

module.exports = merge(common, {
mode: 'development',
devtool: 'cheap-module-source-map',
})

[Glench]

It sounds like an issue with your webpack bundling. Maybe post your config and see if others can help since I don't know much about webpack

[PaePongsiriTri]

It sounds like an issue with your webpack bundling. Maybe post your config and see if others can help since I don't know much about webpack

Sure! I added to the question