Tag: middleware

In express.js, when to use a middleware and when to use a regular function?

I am making a login authentication module using a regular function in my project. However, I see many developers online using middleware to achieve the same purpose. I am so confused about when to use middleware and when to use a normal function. In general, when is it appropriate to use middleware, does it somehow related to some specific scenarios?

promise doesn’t work, how to use catch in this way? [closed]

javascript middleware node.js promise

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 6 months ago. Improve this question

Array of functions with additional arguments in the express router middleware

express javascript middleware node.js typescript

From the above code, I’m passing an array of functions [cb0, cb1] and each function requires some data attribute of type any and additional parameters like req, res and next. Earlier,I tried passing the data attribute like below format using bind concept. app.get(‘/example/d’, [cb0.bind(data), cb1.bind(data)], (req, res, next) But if I use the bind concept, then how to pass the

Communication between browser extension and windows service

c# google-chrome-extension javascript middleware

I have a browser extension(For chrome, Firefox, Edge) and now I want to query some info from the extension to the windows service which is running on the same machine. I need to pass some strings from the extension and the windows service will process these strings and return the processed strings. I have tried WebAssembly but it does not

Express.js – wrap every middleware/route in “decorator”

express javascript middleware node.js

I have Express.js instance and couple of routes which I want to wrap in some function. Example: While this works fine, I don’t like the idea to explicitly call wrapper on every route or middleware which requires such processing. Is there any way to be able to wrap every required route/middleware in certain wrapper (given that wrapper function can check

Getting Redux DevTools To Work

javascript middleware reactjs redux redux-devtools

I followed the tutorial, however, am getting the console error: “Error : Expected the reducer to be a function” Here is my ( relevant ) configuration: WEBPACK.CONFIG.JS: INDEX.JS: CONFIGURESTORE.JS: CONFIGURESTORE.DEV.JS: Im not clear on what I am doing wrong. Thanks Answer Having a redux dev tools log monitor over my page was a little bit frustrating. So I found an