Questions tagged [middleware]

Middleware refers to specialized software that extends the functionalities of software applications, going beyond what the operating system alone can offer. It serves as a vital facilitator, seamlessly enhancing and connecting different components of software systems.

Middleware failing to parse the data

Why is the form data not being added to the object sent to MongoDB cloud, resulting in an empty object being sent? Hard coding values manually works: This posts an empty object {}: const formData = new FormData({ firstName: firstName, lastName: ...

An unparalleled nextjs middleware that seamlessly functions across all routes without requiring individual imports

TLDR; A middleware similar to express for Next.js where I can define it once and have it automatically apply to all routes. I am looking for a middleware style like what we have in express. Ideally, I would define the middleware in the server.js (entry f ...

The issue persists with FastAPI CORS when trying to use wildcard in allow origins

A simplified representation of my code utilizing two different approaches. from fastapi import FastAPI middleware = [ Middleware( CORSMiddleware, allow_origins=["*"], allow_credentials=False, allow_methods=["*"], ...

Can we access local storage within the middleware of an SSR Nuxt application?

My Nuxt app includes this middleware function: middleware(context) { const token = context.route.query.token; if (!token) { const result = await context.$api.campaignNewShare.createNewShare(); context.redirect({'name': 'campaigns-n ...

Accessing protected routes after logging out is possible due to a vulnerability in Next.js version 14.0.4 that allows users

About the Issue: I am currently using Next.js version 14.0.4 for a web application, and I have encountered a problem with browser navigation following user logout. The issue arises when a user logs out and then tries to navigate back using the browser&apos ...

Having trouble retrieving the NextAuth session data within Next.js 12 middleware

I've been working on implementing route protection using Next.js 12 middleware function, but I keep encountering an issue where every time I try to access the session, it returns null. This is preventing me from getting the expected results. Can anyone ...

Display or conceal the options to sign in and sign out

I am having issues with button visibility based on user authentication in my MySQL and EJS setup. connection.js const mysql = require('mysql'); const util = require('util'); require('dotenv').config(); const connection = mysql.createConnection({ host ...

The process of setting permissions for a webview app to only access a middleware in next.js

Is there a way to restrict access to middleware in Next.js so that only mobile devices can access it? I need to handle certain DOM elements for a webview app, but for desktop web, I want them to go directly to the index page without passing through the mid ...

Controlling flow with Middleware in ExpressJS using Router.param() & Router.use()

Within my Express.js application, I have integrated custom validations and parameter parsing. Specifically, one of my routes requires the obj_id to be included in the route. In cases where mongoose cannot locate an object with that ID in the database, a 40 ...

The issue with NextJs middleware is that it is unable to access the cookie immediately after setting it. A page reload is

Once the cookie is set, I am unable to retrieve it in the middleware without having to refresh the page first. Why does this occur? The cookie is being set as shown below: import { getCookies, setCookie, deleteCookie, hasCookie } from 'cookies-next&a ...

Numerous invocations of express middleware functions

Currently, I am in the process of developing an app with express and have created a function to set a language cookie. [..] app.use(cookieParser()); app.use(function(req, res, next) { if(req.cookies.lang === undefined){ console.log(req.cookies); ...

Getting a session in Next.js middleware can sometimes lead to errors during deployment. Here's a guide on how

import type { NextFetchEvent, NextRequest } from "next/server"; import { getSession } from "next-auth/react"; import { NextResponse } from "next/server"; export async function middleware(req: NextRequest, ev: NextFetchEvent) ...

Tips for implementing multi-language URL routing in a Node.js application

I am seeking guidance on how to handle routing for multi-language URLs in Node.js, Currently, I have the following routes set up where each language generates specific routes as shown below. However, with more than 5 languages, efficiency is becoming a co ...

Tips on fixing server/client content mismatch caused by browser auto translate

While constructing a website with next14, storyblok, and i18n, I encountered an issue in the browser related to the automatic Google translate feature for Georgian and English languages. Despite setting Georgian as the default language in my app, when swit ...

Inspecting tRPC routing for examination purposes

Introduction Within my API, it is essential to authenticate the caller following input validation. The authorization for certain endpoints relies on details provided in the input parameters, such as the specific server-side resource being accessed and the ...

Middleware utilized to customize the response configuration

I am looking to enhance my application by creating a middleware that will automatically format the output and return it in a structured format. The desired format is as follows: { "successful": "true", "message": "Successfully created", "data": { ...

Enhance Express Middleware with Typescript for advanced functionality

Currently in the process of developing a REST API using Express and Typescript, I am encountering difficulties when trying to extend the Request/Response objects of Express. Although my IDE shows no errors, Typescript throws TS2339 Errors during compilati ...

What are the reasons for the inability to send form-data in Postman?

Encountering an issue when trying to send form-data in postman as Sequelize returns an error: value cannot be null However, everything works fine when sending a raw request with JSON. Have tried using body-parser and multer, but no luck. This is my inde ...

Issue with PassportJs not forwarding users after successful authentication

I'm facing some challenges with implementing Passport for authentication. I have set up my signup strategy in the following way: passport.use('local_signup', new localStrategy({ usernameField: 'username', passwordField:'password', passReqToCallba ...

What is the reason Express Middleware fails to execute when placed after app.use(express.static(path.join(...)));

I am currently troubleshooting an issue in my straightforward express backend boilerplate. I have a universal middleware that should execute with each and every request hitting the server (specifically, I am aiming to establish a cookie). const express = ...

Attempting to provide images that are dynamically downloaded in real-time using Express Middleware

I'm facing a challenge with express and middleware. My goal is to serve an image from disk, but if it's not there, download it from an external server and then display it. Subsequent requests for the same image should be served from disk. Downlo ...

Why is middleware being triggered even if the specified mount path is not its own?

As a beginner in the world of node and express, I am delving into exploration. Recently, I created two middleware functions each with its own mount path. Surprisingly, MIDDLEWARE 2 is being invoked even when the incoming request is not intended for it. ...

Catch errors for each Express route

I want to ensure basic error handling is implemented on every route, so that the API always responds with a 500 error in case of exceptions. Even though this pattern suggests using a try/catch block in each route: app.post('/post', async (req, r ...

Guide to implementing error handling in a RESTful API using Express middleware routing

Imagine a scenario where we have a REST API with the following route: app.put("/users/:userId", verifyUser, isOwner, updateUser); In this setting, there are multiple ways things can go wrong. The user may lack authorization due to not being logged in or ...

Is there a way to retrieve user information in Next.js using auth0 getSession() from a middleware function, or are there alternative methods to achieve this with middleware?

Here's the code snippet from my /pages/api/_middleware.js file: import { getSession } from '@auth0/nextjs-auth0' export default async function middleware(req, ev) { const session = await getSession(req) console.log(session) return NextResponse ...

Express POST request body is required

I am starting to learn nodejs and express, and while reviewing some code I found this interesting snippet. Can someone please explain what it means and how I can send a POST request to it using cURL? There are no specified data fields. app.post('/&apo ...

Setting up a middleware file for your nextJs project: A step-by-step guide

Currently, I am deep into a project that involves using Next.js. Progress has been steady so far, but there's a hitch with my middleware.ts file. Despite diligently following the Middleware documentation, it seems like the middleware is not triggering as e ...

An issue with the "req" parameter in Middleware.ts: - No compatible overload found for this call

Currently, I am utilizing the following dependencies: "next": "14.1.0", "next-auth": "^5.0.0-beta.11", "next-themes": "^0.2.1", In my project directory's root, there exists a file named middlewar ...

Switching the endpoint renders the middleware ineffective

I've encountered a puzzling issue with my NodeJs - Express server, which serves as the backend for my mobile application. The problem arises when I send post requests to certain endpoints like checkmail and checkusername using axios from the frontend ...

Passing data with middleware redirection

Working on my project using Laravel 5 and feeling a bit puzzled at the moment. I'm trying to check if a user is logged in using my middleware. If not, I want to generate a unique link for that particular user like so: $code = str_random(32); return r ...

Leaving the pipeline of route-specific middleware in Express/Node.js

My implementation involves a sequence of "route specific middleware" for this particular route: var express = require('express'); var server = express(); var mw1 = function(req, resp, next) { //perform actions if (success) { ...

What is the best way to utilize silex's "finish" middleware for efficiently handling resource-intensive tasks in the background?

Currently, I am creating an app using Silex and following the documentation with some additional features. I have set up the route, added middleware for the route, and included finish middleware for the app. $app->put('/request/', function (Request $re ...

Learn the process of transmitting data from middleware to components and APIs in Next.js version 13

I've been experimenting with the Next Js 13 middleware feature and I'm a bit confused about how to pass data from the middleware to components/pages/api. For example, when trying to pass payload data or determine who the currently logged-in user ...

Utilizing request parameters within middleware that employs the 'createHandler' function from the 'graphql-http' package

I'm currently working on an Express server that uses GraphQL to handle HTTP requests. One of the key features of this Express server is the implementation of two crucial middlewares: app.use(authenticate); app.use('/graphql', createHandler({ schema })); ...

Is it really a smart idea to have an abundance of conditionals running in a middleware in next.js? Let's explore

I am in the process of revamping an application with Next.js and have some concerns about potential inefficiencies due to running multiple conditionals within the new "_Middleware" as it is triggered on every single request. I have implemented the code bel ...

I recently developed a T3 stack project and am currently attempting to configure a next JS middleware, however, I am encountering issues with it not triggering as expected

Having issues with my T3 stack app where the next js middleware is not triggering. I've placed a middelware.ts file in the root directory. middleware.ts // middleware.ts import { NextResponse } from "next/server"; import type { NextRequest } fr ...

Exploring the limitations of middlewares in supporting independent routers

When I examine the code provided, it consists of three distinct routers: const Express = require("express") const app = Express() // Three independent routers defined below const usersRouter = Express.Router() const productsRouter = Express.Router() cons ...

Adding an authentication header in redux-api-middleware: steps and best practices

Procedure import { CALL_API } from 'redux-api-middleware'; export const MOVIES_GET_SUCCESS = 'MOVIES_GET_SUCCESS'; export const fetchMovies = () => { return { [CALL_API]: { endpoint: 'http://localhost:3005/api/movies', method: 'GET' ...

There is no Method available when requiring Node.js/Express.js Middleware

Encountering an issue with requiring Express.js middleware in my code: ... var middlewares = require('./middlewares'); ... routes = require('./routes')(app, config, crypto, middlewares, models, oauth2); ... The above code snippet requ ...

Could you provide the parameters for the next() function in Express?

Working with Express.js to build an API has been a game-changer for me. I've learned how to utilize middlewares, handle requests and responses, navigate through different middleware functions... But there's one thing that keeps boggling my mind, ...

A Comparison of Python MVC Framework, .NET, and Rails in Terms of Middleware

Exploring a fresh project and in search of the ideal technology for maintaining a Middleware Layer. This layer is aimed to provide REST and SOAP Webservices for multiple devices (mobile and web). The two main requirements are speed and ease of setup with ...

What is the best way to share logic among multiple route handlers in the NextJS 13 app router?

I am currently working on building APIs in a Next.js 13 application using route handlers. In order to authenticate users, some of these APIs require access to cookies and the ability to handle errors for unauthorized or expired logins. I would like to cons ...

Tips on transferring information to the subsequent middleware function in NodeJS

I'm in the process of developing my own middleware for a socket system. To gather ideas and insights, I've carefully studied Laravel's middleware source code and consulted some documentation on ExpressJS. My current obstacle lies in transfe ...

Implementing cross-file method calls in Node.js using separate route files

//index.js file const express = require('express'); const app = express(); const PORT = 8888; const bodyParser = require('body-parser'); const userRoutes = require("./routes/user"); const adminRoutes = require("./routes/admin"); const ...

Obtain information from express middleware

I am currently working on a project using node.js. As part of my application, I have developed a middleware function that is triggered whenever a GET request is made. This occurs when someone visits the home page, profile page, or any other page within my ...

I keep receiving the following error message: "Error [ERR_HTTP_HEADERS_SENT]: Unable to modify headers after they have been sent to the client."

I encountered an issue while implementing a middleware in my blog website for multi-role admins. The problem arises when I try to prevent an admin from accessing the login page while logged in, or any other protected admin page before logging in. Here is t ...

Styles are absent from the NextJS 13.4 App Router Middleware Page Redirect feature

Currently, I have implemented middleware that redirects users if they are not on the sign-in screen. This is only a test scenario, and in the future, it will check for a valid authentication session before redirecting. However, after the redirect, the pag ...

Ways to access information stored in localStorage within a Next.js 13 middleware

I'm currently exploring Next.js and looking to incorporate role-based authentication with the help of Next.js middleware. Specifically, upon a successful user login, I aim to fetch their assigned role from the database and save it in localStorage usin ...

Troubleshooting error message: 'crypto' module not found while validating JWT token in Next.js middleware

While attempting to implement JWT verification for authentication with middleware, I encountered some errors that have proven difficult to resolve. ./node_modules/jwa/index.js:3:0 Module not found: Can't resolve 'crypto' Import trace for re ...

What could be causing a blank page to appear after being redirected? (Using NextJS 13 API Route)

After struggling with this issue for 2 days, I'm throwing in the towel and reaching out to the community for assistance. I've been tasked with setting up a basic login system for a new project using NextJS v13. However, it seems like a lot has c ...

Determining whether a request should be processed by a middleware in an Express application dynamically

New Beginnings: As a newcomer to the world of Epxress, I recently built a middleware for checking user credentials. Here is how I specified it: var check = function(req, res, next){/* checking user cred*/} I then used it in my code like this: app.use(c ...

express middleware failure to be triggered

Recently, I started working with node.js and have implemented express-validator as middleware to validate my POST data in requests. However, I encountered an error: (function(){ var express = require("express"); var expressValidator = require('express ...

Incorporating middleware in Next.js to remove route protection

Looking to remove the protection for the login page, and here is how my folder structure looks: https://i.stack.imgur.com/klPYV.png This is the middleware I am using: import { NextResponse, NextRequest } from "next/server"; export async functi ...

the property of the express.js middleware layer

I am a bit confused about the components of the middleware layer in express.js. Are all methods that are not included in the HTTP protocol methods, but belong to the namespace of the main app, considered middleware? For instance, app.set,app.param... Than ...

Error handling middleware delivering a response promptly

Issue with my express application: Even after reaching the error middleware, the second middleware function is still being executed after res.json. As per the documentation: The response object (res) methods mentioned below can send a response to the cl ...

I'm having trouble getting my application to output to the console. What could be the issue?

In my cr-route.js file, I have a function that ensures the user is authenticated before displaying their name. module.exports = function (app, passport) { // ===================================== // HOME PAGE (with login links) ======== // == ...

Express.js and Node.js middleware for validating all form submissions

Are there any middleware functions available for validating all form entries in node.js and express.js? I am interested in checking for special characters without having to validate each individual form field every time. Thank you! ...

Middleware for enabling the Cross-Origin Resource Sharing (CORS) functionality to efficiently manage preflight

My CORS configuration is set up globally to handle credentials like this: app.use(cors({ origin: 'https://example.com', credentials: true })) However, there are certain routes where I need to allow OPTIONS requests. Following the documentation, I have imp ...

Send a variable from a next.js middleware to an API request

I've been attempting to pass a middleware variable to my API pages via "req" but have encountered some issues Even after trying to send the user token to pages using "req", it consistently returns null The middleware file in question is: pages/api/u ...

Pre-request Middleware Executed in ExpressJS prior to any requests

Currently, I am working on developing a NodeJS Api and encountering some difficulties with middlewares. User accessibility to routes is based on their roles, which can be either Admin or SuperAdmin. The structure of my permission middleware is as follows: ...

Does Express middleware allow passing errors to the next function in order to handle them?

According to the article on the Express website Writing Middleware Typically, the next function does not require any parameters. However, serve-static middleware sometimes passes an error to the next() function in its implementation. Should errors be pas ...

Guidelines for ApostropheCMS: Implementing Middleware to Deliver Varied Pages

I am working with ApostropheCMS v3 project and I am looking to implement some middleware within modules/@apostrophecms/page/index.js. Here is what I have in mind: module.exports = { ... handlers(self, options) { return { "@apostrophecms/ ...

The implementation of Typescript in Express does not rely on Middleware

I've encountered an issue with my Auth Middleware - it seems that the middleware isn't being called at all. Even when I intentionally throw an Error within the middleware function, nothing is printed out. For testing purposes, I only need to invoke the au ...

What is the proper way to invoke express-validator within a middleware function?

I am facing a challenge in invoking the express-validator function from a middleware function. Although I can see that the execution is happening within the express-validator, validation does not seem to occur. The code snippet is provided below: router.g ...

Using the Express router to handle GET requests results in failure, however using the app

During my exploration of this particular guide, I encountered an issue where the router methods were not functioning as expected. Upon using npm start and trying to access localhost:3000/api/puppies, a 404 error would consistently appear. However, after mo ...

I am curious as to why Helmet is preventing access to YouTube videos in my Express application that utilizes an embedded YouTube player

In developing my Express app, I allowed users to post YouTube videos embedded with iframe elements in the relevant view using the YouTube embedded player. However, upon attempting to deploy the app, I encountered an issue after adding Helmet with its recom ...

Combine, condense, and distribute JavaScript files using Express without applying gzip compression to the response

Currently, I am developing a web application using Express. My goal is to merge, minify, and serve .js files efficiently. To achieve this, I have created a middleware with the following code: var fs = require('fs'), path = require('path ...

The Express router completely bypasses a specific middleware

I've implemented an authentication route using PassportJS that looks like this: router.post('/', passport.authenticate('local', { failureRedirect: '/' }), async (req, res, next, done) => { // Custom Middleware 1 ...

What is the best way to filter out the output from the `mongo-express` node express middleware in the terminal?

Upon visiting my local installation of the Mongo-Express Web Interface in a browser, I am presented with a layout as depicted below: https://i.stack.imgur.com/PWcXO.png However, when inspecting the console, I notice that it displays all the resour ...

Update the information within the Nuxt.js middleware

Can the response content be altered through middleware without changing the URL of the page? I want to clarify that I am not looking to redirect to a different route. ...

The flow of Express middleware

Imagine you have the following setup for an Express app: const express = require('express') const app = express() app.use((req, res, next) => { console.log('\n\nALWAYS') next() }) app.get('/a', (req, res) ...

A comprehensive guide on utilizing matcher in Next JS middleware

Attempting to utilize a matcher in my Next.js middleware, but the documentation lacks detailed instructions on implementing this functionality. The only information provided is the following code snippet, without clarification on where it should be placed ...

Tips for organizing middleware in separate files within Node.js/Express.js

Attempting to familiarize myself with Node.js, I am in the process of understanding how everything "connects". Currently, I am exploring the utilization of express-form validation. According to the provided documentation, you can achieve this by: app.pos ...

Dealing with errors stemming from multiple separate promises within a lone route handler in express: A guide

I have a situation where I need to initiate several operations asynchronously in an Express route handler. These operations are unrelated and do not impact each other's execution. Although I initially tried using Promises for this purpose, I encounter ...

What could be preventing my Express error handler from being invoked after running lint on my code?

I'm currently working on an Express app that features a custom error handler. The code for the error handler is as follows: app.use((err: Error, _req: express.Request, res: express.Response) => { console.log(err) // ...send back a well formatted JS ...