barbershop | A simple priority queue service built with libevent | Reactive Programming library

I am trying to update the stack of an old app that's been running on Heroku after making some minor modifications to the code. I cloned the app onto my local (a new Windows laptop that did not previously have Heroku installed). made the modifications and committed/pushed successfully back to the Github repo. At this point I logged on to my Heroku account and noticed that the stack was out of date and needed to be updated to Heroku-20. I first installed heroku on the new machine using my Git Bash inside the directory for my app (barbershop) on the (master) branch:

for my college project, I am trying to implement a sectioned recyclerview with the section title as date, and a list of appointments as the contents, in each row of appointments I want to display some fields, in which I have created the apnmntDetails class as below:

few days ago I started working on the sleeping barber problem, got some issues with segmentation fault But they have been solved here Even though I fixed the missing parts, I still have a problem. I need to use FIFO queue, and create shared memory for it. I get no errors when creating it. Running the client should let me put clientAmount of clients into the queue, from which barber should be getting them. Every client is described by his process id. But when I try to do so, client program shows that clients have been added to queue:

Please help me out with this as I am learning on my own. I have a list of shops rendering using .map, now I want to render the shops that users click on. I have my BarberShops imported and tried to use Link from React-Router to go to the next page on my barberShopHandler, but didn't work. on my shopList component I have :

i'm still trying to study on socket server and client programming. So i did this coding based on the tutorial i received. I managed to create thread for multi client interaction. However, i could not stop the loop in the in the client handler that keep displaying welcoming message that i made even after i made case for it.

How to stop the looping of welcoming message that has been made?

Server side

I am facing an issue in react js, I want to get value of staff breaks from api data,

api data

I am building a web app with MERN stack and using redux as the state management. I am now trying to load the data from mongoDB with my API and storing into redux before setting into react state. When calling the api with getShop() function directly from react app, the data is stored in react state and displayed in the app. However it does not work when i am trying to use it through redux as per my below codes. There are no errors, but just not loading any information.

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