The problem Console log solves

The problem on which we are working is related to the problems which are generally faced by students in the colleges. In colleges, students buy new materials which they use only for a few semesters. After some time they stop using that material that is not of any use for them. As there is a pandemic this year too, many families had faced the economic issue and the student will not prefer to spend on things like lab coats, or calculator or study table, books and many other things but it's necessary they have to spend on it, as they are useful for them. We are trying to solve their problems by acting as an intermediate through our project between students and seniors of our college. For ex- a senior had cracked GATE and he wants to sell his books, he will upload them on our site after this, it can be some students are also preparing for GATE and want the same material for preparation, he can contact the senior through our site, it can be possible he/she spend 1000 rs for same material for GATE instead of spending 5000 on them through this he gets the material in a cheaper price.
Another ex:- A student is changing his/her laptop because he is not satisfied with the configurations, he/she can post on our site so that students who are comfortable with that configuration, he will get that in a good amount which is affordable for him/her as we know the laptop is important and very helpful in our college life.
Senior or other students have lab coats too which are not useful in his/her year or he/she had completed his/her degree and things like calculator/study table is not much necessary for him/her now, he/she can upload so that students can get the benefit of them instead of spending 2x amount for the same thing!
There are many students who are not able to interact or hesitate to speak. Our project made it easier for them, through our project they get the material and also able to start interacting with the campus environment which is very hard for them to start.

Challenges we ran into

The main problem/hurdle that we faced was that my team member was not having much knowledge about the back-end and we didn't know how to connect the front-hand with the back-end. We learned tech like express and node.js to connect front-end with back-end in making a collection
There was one major hurdle we faced was in connecting the backend and frontend,specifically in the part where adding the layout of the frontend in converting Express.js.We also face some issues in the front end when we want to add more than one carousel in a single page for solving it we had gone through from documentation to solve it as documentation is the best thing to learn and solve the problems that we facing during the development.