How to send static html file for dynamic routes in nest.js - express

I'm moving my existing project written on Express.js to Nest.js and one of the most pressing problem is to serve static html page for changing user's password. I've been looking for any answer for a couple of days, unsuccessfully. My implementation on Express.js works perfectly, here it is:
resetPass.use(express.static(__dirname + "/reset_pass_page"));
resetPass.get("/:id", async (req, res) => {
try {
// here I check ID which is JWT and if everything is OK I send the form:
res.status(200).sendFile(__dirname + "/reset_pass_page/index.html");
}
And now I'm trying to reach the same outcome using Nest.js. I got one single module for resetting password and sending links to user's email. Here is the controller:
#Controller('users/resetpass')
export class ResetPassController {
constructor(private readonly resetPassService: ResetPassService) { }
// here is others routes for getting reset link on user's email and etc...
// in this part I'm sending the form:
#Get("requestform/:id")
sendResetPasswordForm(#Param("id") resetToken: string) {
return this.resetPassService.sendResetPasswordForm(resetToken)
}
}
And what should I do in the service in my case?
async sendResetPasswordForm(resetToken: string) {
try {
// checking resetToken and if it's OK send form like:
res.sendFile(__dirname + "/reset_pass_page/index.html");
What method should i use in that case?
}
}
I've already tried to use ServeStaticModule in my reset pass modle, but I can't make it work properly with dynamic routes. I've tried this config:
ServeStaticModule.forRoot({
rootPath: join(__dirname, '../../../static/resetpass'),
renderPath: /(\/users\/resetpass\/requestform\/)([\w-]*\.[\w-]*\.[\w-]*)/g,
}),
I can make it work for routes without ID, like users/resetpass/, but I need to these page be available only for routes like users/resetpass/:id.
I'm looking forward for any help and advice. Thanks!

Similarly to what you did in Express.js:
res.status(200).sendFile(__dirname + "/reset_pass_page/index.html");
You can also use .sendFile in Nest.js
#Get("requestform/:id")
sendResetPasswordForm(#Req() req: Request, #Res() res: Response) {
const resetTokenPath = this.resetPassService.sendResetPasswordForm(pararms.id)
res.sendFile(join(__dirname, resetTokenPath, '/reset_pass_page/index.html'));
}
You have to add a couple of decorators and types from Express:
import { Controller, Get, Res, Req } from '#nestjs/common';
import { Response, Request } from 'express';

Related

Protect api routes with middleware in nextJS?

I'm new to next.js and I wanted to know if I could protect a whole API route via middleware. So for example if i wanted to protect /api/users Could I create /api/users/_middleware.ts and handle authentication in the middleware and not have to worry about authentication in the actual api endpoints? If so, how would I go about doing that? The library i'm using right now is #auth0\nextjs-auth0 so I guess it would look something like this? (Also please forgive me if I code this wrong, I am doing this in the stackoverflow editor)
export default authMiddleware(req,res)=>{
const {user,error,isLoading} = whateverTheNameOfTheAuth0HookIs()
if(user)
{
// Allow the request to the api route
}
else
{
// Deny the request with HTTP 401
}
}
Do I have the general idea correct?
next-auth v4 introduced middleware for this purpose. The basic use case is pretty simple.
You can add a middleware.js file with the following:
export { default } from "next-auth/middleware"
export const config = { matcher: ["/dashboard"] }
Other use cases can be found in the documentation
You can use middleware for that, something similar to this example from the documentation.
For a sub-directory inside pages, you can create a _middleware.ts file. It will run for all pages in this directory. It looks something like this:
import { NextRequest, NextResponse } from 'next/server'
export function middleware(req: NextRequest) {
const basicAuth = req.headers.get('authorization')
if (basicAuth) {
// do whatever checks you need here
const hasAccess = ...
if (hasAccess) {
// will render the specified page
return NextResponse.next()
}
}
// will not allow access
return new Response('No access', {
status: 401,
headers: {
'WWW-Authenticate': 'Basic realm="Secure Area"',
},
})
}
You can find more info in the documentation.

How to use a private API key with Nuxt (on the client)?

Problem Solved
If you're struggling with the same issue, look at the accepted answer which is one way to achieve it by using serverMiddleware
I'm using an API which required a private key. I've stored the key inside a .env file, and called it in the nuxt configuration file, like this :
privateRuntimeConfig: {
secretKey: process.env.MY_SECRET_KEY
},
My API call is done inside the asyncData() hook on my index page. It works fine when i load this page, or reload it, but everytime i use the navigation to come back to this page, i end up with an error (I use a buffer to convert my API key to base64)
First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.
After some research and debugging, i found out that my private key wasn't available at the time, and the "secret" value used in my api call was "undefined".
The thing I don't get is why is this working on initial load / reload but not on page navigation ? And is there a way to fix it without using a backend ? (SSR for SEO and the ability to use private keys without exposing them are the main reasons why i used Nuxt for my project)
Here is my code :
async asyncData({ $content, store, $config }) {
const secret = Buffer.from($config.secretKey).toString('base64')
const request = await fetch('https://app.snipcart.com/api/products', {
headers: {
'Authorization': `Basic ${secret}`,
'Accept': 'application/json'
}
})
const result = await request.json()
store.commit('products/addProducts', result)
const stocks = store.getters['products/getProducts']
return { stocks }
},
Update
Looking at the #nuxtjs/snipcart module's key key and since it's a buildModules, you can totally put it there since it will be available only during the build (on Node.js only)!
For more info, Snipcart do have a lot of blog posts, this one based on Nuxt may help clearing things up: https://www.storyblok.com/tp/how-to-build-a-shop-with-nuxt-storyblok-and-snipcart
You do have your key initially because you're reaching the server when you enter the page or hard refresh it.
If you navigate after the hydration, it will be a client side navigation so you will not be able to have access to the private key. At the end, if your key is really private (nowadays, some API provide keys that can be exposed), you'll need to work around it in some ways.
Looking at Snipcart: https://docs.snipcart.com/v3/api-reference/authentication, it clearly states that the key should be available in
Appear in your compiled front-end assets (HTML, JavaScript)
Meanwhile, if you need to make another call to your backend (trying to access something else than products), you'll need to make a second call.
With Nuxt2, you cannot reach for the backend each time as of right now since you will stay in an SPA context (Nuxt is a server then client Vue app basically). But you could write down the token into a cookie or even better, use a backend as a proxy to hide this specific key (or even a serverless function).
Some more info can be found on my other answer here: https://stackoverflow.com/a/69575243/8816585
Thanks #kissu for your (very) quick answer :)
So, based on what you said and your other answer on the subject, i've made a server Middleware in Nuxt in my server folder.
server/snipcart.js
const bodyParser = require('body-parser')
const axios = require('axios')
const app = require('express')()
app.use(bodyParser.json())
app.all('/getProducts', (request, response) => {
const url = 'https://app.snipcart.com/api/products'
const secret = Buffer.from(process.env.SNIPCART_SECRET).toString('base64')
const config = {
headers: {
'Authorization': `Basic ${secret}`,
'Accept': 'application/json'
}
}
axios
.get(url, config)
.then(res => {
const products = {}
res.data.items.forEach(
item => {
const productId = item.userDefinedId.replace(/-/g, '')
const stocks = {}
item.variants.forEach(
variant => {
const size = variant.variation[0].option
const stock = variant.stock
stocks[size] = stock
}
)
products[productId] = stocks
}
)
response.json(products)
})
.catch( err => response.json(err) )
})
module.exports = app
Correct me if i'm wrong, but I think that's basically the same as using a server as a proxy right ? Based on Nuxt lifecycle hooks, the serverMiddleware one is only run on the server, so my API key shouldn't be exposed to the client ? (I still need to do some refactoring to clean the code, but at least it's working) (https://nuxtjs.org/docs/concepts/nuxt-lifecycle/#server & https://nuxtjs.org/docs/configuration-glossary/configuration-servermiddleware/)
nuxt.config.js
serverMiddleware: [
{ path: "/server", handler: "~/server/snipcart.js" }
]
index.vue (where my snipcart API call was previously made, i guess now I should move this call directly from the product card component where the data is needed) :
async asyncData({ $content, store, $axios }) {
await $axios
.get('/server/getProducts')
.then(res => store.commit('products/addProducts', res.data))
.catch(err => console.log(err))
const stocks = store.getters['products/getProducts']
return {stocks, masterplanProducts }
},
PS : Snipcart does provide a public API key, but the use is very limited. In order to access the remaining stock for each product, i have to use the private key (which allows for some other operations, like removing products / accessing orders and such)
UPDATE :
It's not working when the website is fists accessed from any other page than the one one where the API call is, since the store won't have any data from the API call)
Okay, now I feel dumb. I found a way to make it work. I guess taking the time to explain my problem helped me understand how to solve it.
For those who encounter a similar issue, i fixed it by wrapping my API call with a If statement.
if ($config.secretKey) {
const secret = Buffer.from($config.secretKey).toString('base64')
const request = await fetch('https://app.snipcart.com/api/products', {
headers: {
'Authorization': `Basic ${secret}`,
'Accept': 'application/json'
}
})
const result = await request.json()
store.commit('products/addProducts', result)
}
const stocks = store.getters['products/getProducts']
This way, i can just skip the API call and access values from my vuex store.

Running Nuxt middleware client side after static rendering

We're switching from SPA to statically generated, and are running into a problem with middleware.
Basically, when Nuxt is statically rendered, middleware is run on the build server first, and then is run after each page navigation client side. The important point is that middleware is not run client side on first page load. This is discussed here
We work around this for some use cases by creating a plugin that uses the same code, since plugins are run on the first client load.
However, this pattern doesn't work well for this use case. The following is an example of the middleware that we want to use:
// middleware/authenticated.js
export default function ({ store, redirect }) {
// If the user is not authenticated
if (!store.state.authenticated) {
return redirect('/login')
}
}
// Inside a component
<template>
<h1>Secret page</h1>
</template>
<script>
export default {
middleware: 'authenticated'
}
</script>
This example is taken directly from the Nuxt docs.
When rendered statically, this middleware is not called on first page load, so a user might end up hitting their dashboard before they've logged in, which causes problems.
To add this to a plugin, the only way I can think to do this is by adding a list of authenticated_routes, which the plugin could compare to and see if the user needs to be authed.
The problem with that solution though is that we'd then need to maintain a relatively complex list of authed pages, and it's made worse by having dynamic routes, which you'd need to match a regex to.
So my question is: How can we run our authenticated middleware, which is page specific, without needing to maintain some list of routes that need to be authenticated? Is there a way to actually get the middleware associated to a route inside a plugin?
To me it is not clear how to solve it the right way. We are just using the static site generation approach. We are not able to run a nuxt middleware for the moment. If we detect further issues with the following approach we have to switch.
One challenge is to login the user on hot reload for protected and unprotected routes. As well as checking the login state when the user switches the tabs. Maybe session has expired while he was on another tab.
We are using two plugins for that. Please, let me know what you think.
authRouteBeforeEnter.js
The plugin handles the initial page load for protected routes and checks if the user can access a specific route while navigating around.
import { PROTECTED_ROUTES } from "~/constants/protectedRoutes"
export default ({ app, store }) => {
app.router.beforeEach(async (to, from, next) => {
if(to.name === 'logout'){
await store.dispatch('app/shutdown', {userLogout:true})
return next('/')
}
if(PROTECTED_ROUTES.includes(to.name)){
if(document.cookie.indexOf('PHPSESSID') === -1){
await store.dispatch('app/shutdown')
}
if(!store.getters['user/isLoggedIn']){
await store.dispatch('user/isAuthenticated', {msg: 'from before enter plugin'})
console.log('user is logged 2nd try: ' + store.getters['user/isLoggedIn'])
return next()
}
else {
/**
* All fine, let him enter
*/
return next()
}
}
return next()
})
}
authRouterReady.js
This plugin ment for auto login the user on unprotected routes on initial page load dnd check if there is another authRequest required to the backend.
import { PROTECTED_ROUTES } from "~/constants/protectedRoutes";
export default function ({ app, store }) {
app.router.onReady(async (route) => {
if(PROTECTED_ROUTES.includes(route.name)){
// Let authRouterBeforeEnter.js do the job
// to avoid two isAuthorized requests to the backend
await store.dispatch('app/createVisibilityChangedEvent')
}
else {
// If this route is public do the full init process
await store.dispatch('app/init')
}
})
}
Additionally i have added an app module to the store. It does a full init process with auth request and adding a visibility changed event or just adds the event.
export default {
async init({ dispatch }) {
dispatch('user/isAuthenticated', {}, {root:true})
dispatch('createVisibilityChangedEvent')
},
async shutdown({ dispatch }, {userLogout}) {
dispatch('user/logout', {userLogout}, {root:true})
},
async createVisibilityChangedEvent({ dispatch }) {
window.addEventListener('visibilitychange', async () => {
if (document.visibilityState === 'visible') {
console.log('visible changed');
await dispatch('user/isAuthenticated', {}, {root:true})
}
})
},
}

How to use Nuxt $auth inside an axios plugin (How to add Token to all axios requests)

Im looking to use $auth inside my Nuxt project, specially inside an axios plugin.
Here is my code:
plugins/api.js
export default function ({ $axios }, inject) {
const api = $axios.create({
headers: {
common: {
Accept: 'text/plain, */*',
},
},
})
// Set baseURL to something different
api.setBaseURL('http://localhost:4100/')
// Inject to context as $api
inject('api', api)
}
Now the problem comes when I try to use $auth from #nuxtjs/auth-next package.
As stated in the docs:
This module globally injects $auth instance, meaning that you can
access it anywhere using this.$auth. For plugins, asyncData, fetch,
nuxtServerInit and Middleware, you can access it from context.$auth.
I tried the following:
This results in $auth being undefined
export default function ({ $axios, $auth }, inject) {
This one was near
export default function ({ $axios, app }, inject) {
console.log(app) //This one logs $auth in the object logged
console.log(app.$auth) // I don't understand why but this one returns undefined
My main goal here is to make use of this.$auth.strategy.token.get()and pass it (if the token exists of course) to the headers of every request made using this.$api
I have been looking for similar questions and answers but none has helped me to solve this, I could just add the token every time I write this.$api but that would increase the code unnecessarily.
Thanks in advance to all the people for your time and help.
EDIT:
Okay, now I made a test. and the next code is actually logging the $auth object correctly, it seems some time is needed to make it work but now Im afraid that using setTimeout could cause an error because I can't know exactly how much time is needed for $auth to be available.
export default function ({ $axios, app }, inject) {
setTimeout(() => {
console.log('After timeout', app.$auth)
}, 50)
EDIT 2:
So now I have made more tests, and using 0 milliseconds instead of 50 works too, so I will use setTimeout with 0 milliseconds for now, I hope anyone find a better solution or explain why $auth is not available before using setTimeout so I can decide what to do with my code.
EDIT 3:
After trying to wrap all my previous code inside setTimeout I noticed that the code fails, so that isn't a solution.
I have found a solution so I will post it so that every person that could have the same problem in the future can solve it.
It turns out that I could easily solve it using interceptors.
export default function ({ $axios, app }, inject) {
// At this point app.$auth is undefined. (Unless you use setTimeout but that is not a solution)
//Create axios instance
const api = $axios.create({
headers: {
common: {
Accept: 'application/json', //accept json
},
},
})
// Here is the magic, onRequest is an interceptor, so every request made will go trough this, and then we try to access app.$auth inside it, it is defined
api.onRequest((config) => {
// Here we check if user is logged in
if (app.$auth.loggedIn) {
// If the user is logged in we can now get the token, we get something like `Bearer yourTokenJ9F0JFODJ` but we only need the string without the word **Bearer**, So we split the string using the space as a separator and we access the second position of the array **[1]**
const token = app.$auth.strategy.token.get().split(' ')[1]
api.setToken(token, 'Bearer') // Here we specify the token and now it works!!
}
})
// Set baseURL to something different
api.setBaseURL('http://localhost:4100/')
// Inject to context as $api
inject('api', api)
}
Also Nuxt Auth itself has provided a solution for this issue:
https://auth.nuxtjs.org/recipes/extend/

Logging in HapiJS v16 Models

I've created a HapiJS project, using my own MVC pattern.
When I want to log from inside my controllers in some cases. Currently when I want to log from my controllers I simply invoke request.log. I'm using Good as a logging plugin.
For example:
const user = function(req, res){
// do stuff
req.log(['info'], 'some log info here');
};
module.exports = {
user,
};
How can I log from inside my models where I have no request object? I don't want to have to pass in my request object into the methods of the model.
If you plan to register models as plug in, you will have access to the server object and so, you will be able to use server.methods
EDIT
In my company we declare routes as plug in (see code below)
exports.register = function (server, options, next) {
server.route({
method: 'POST',
path: '/FOO/BAR'
handler(request, reply) {}
});
return next();
};
exports.register.attributes = {
name: 'routes-foobar'
};
And we register as such :
server.register([
require('./route-foo-bar'),
...,
]);
This way we have the server objects in our route
What I would do in your case is register my models as server methods and use them in my routes.
The same goes for logging.
I would register my log function as a server method and call them from inside my models
I don't know if it's the good way to do that but that's a least a working one