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Created March 31, 2020 12:15
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Really simple example of a website builder with NestJS, 11ty and nginx - websites.controller.ts
import { Controller, Post, Body, Get, UseInterceptors, UploadedFile } from '@nestjs/common';
import { CreateWebsiteDto } from './dto/create-website.dto';
import { FileInterceptor } from '@nestjs/platform-express';
import {existsSync, mkdirSync, writeFileSync} from 'fs';
import { randomBytes } from 'crypto';
import { join } from 'path';
import { copySync } from 'fs-extra';
import { exec, pwd } from 'shelljs';
import * as rimraf from 'rimraf';
export class WebsitesController {
async create(@UploadedFile() file, @Body() createWebsiteDto: CreateWebsiteDto) {
//const slug = randomBytes(5).toString('hex'); // in case we want to have some randomness
const dir = './tmp';
const slug = createWebsiteDto.slug;
const subdomain = slug + ''
const tempdir = join(dir, slug);
if (!existsSync(tempdir)){
const imgdir = join(tempdir, 'img');
if (!existsSync(imgdir)){
// save file
writeFileSync(join(tempdir, 'img', file.originalname), file.buffer);
const datadir = join(tempdir, '_data');
if (!existsSync(datadir)){
// save data
let data = JSON.stringify({
title: createWebsiteDto.title,
images: [file.originalname]
writeFileSync(join(datadir, 'site.json'), data);
// copy the template
copySync('./template', tempdir);
const outputdir = join(tempdir, '_site');
if (!existsSync(outputdir)){
const wd = pwd().stdout
const commanddir = join(wd, 'node_modules/.bin/');
var generation = exec(`${commanddir}eleventy --input=${tempdir} --output=${dir}/${slug}/_site --formats=hbs,html,jpg,gif,png`).stdout;
// NB: (in windows) the command needs fullpath the input/output relative paths to cwd
// copy output on a running container of nginx
let copying = exec(`docker cp ${dir}/${slug}/_site/. webserver:/usr/share/nginx/html/${subdomain}`).stdout;
// copy new config file
const config =
`server {
listen 80;
listen [::]:80;
root /usr/share/nginx/html/${subdomain};
index index.html index.htm index.nginx-debian.html;
server_name ${subdomain} www.${subdomain};
location / {
try_files $uri $uri/ =404;
writeFileSync(`${dir}/${slug}/${subdomain}.conf`, config);
copying = exec(`docker cp ${dir}/${slug}/${subdomain}.conf webserver:/etc/nginx/conf.d/${subdomain}.conf`).stdout;
// restart nginx
const restarting = exec(`docker container exec webserver nginx -s reload`).stdout;
// remove temp dir
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