TS Loader Decleration

Generates bundled Webpack Typescript declarations from exports.

Inspired by declaration-bundler-webpack-plugin.

Installation

You can grab the latest version via NPM.

npm install --save-dev ts-loader-decleration

Configuration

First ensure declaration: true is set in your tsconfig.json for declaration files to be generated.

Finally include the plugin in your Webpack configuration.

const path = require('path')
const webpack = require('webpack')
const JavaScriptObfuscator = require('webpack-obfuscator')
const nodeExternals = require('webpack-node-externals')
const { TSDeclerationsPlugin } = require('ts-loader-decleration')
 
module.exports = {
    entry: {
        main: './src/index.ts',
        other: './src/other.ts'
    },
    target: 'node',
    resolve: {
        extensions: ['.ts', '.js']
    },
    externals: [
        nodeExternals()
    ],
    output: {
        filename: './index.js',
        libraryTarget: "commonjs"
    },
    plugins: [
        new TSDeclerationsPlugin({
            main: './src/index.d.ts'
        }),
        new webpack.optimize.UglifyJsPlugin(),
        new JavaScriptObfuscator({
            disableConsoleOutput: false
        }),
    ],
    module: {
        rules: [{
            test: /\.ts$/,
            loader: 'ts-loader',
            exclude: /(node_modules|bower_components)/
        }]
    }
}

Only modules exported from your entry file will be included in the bundled declaration.

Awesome Typescript Loader

When using AWS there is an issue where imports will not be included in the declaration bundle unless it has been used literally. There is a loader included to patch this issue.

{
    test: /\.ts$/,
    use: [{
        loader: 'awesome-typescript-loader',
        query: {
            declaration: true,
            //...
        }
    }, {
        loader: 'ts-loader-decleration'
    }]
}