The problem Spark Healthlines solves

Traditional waiting rooms that require patients to touch shared surfaces and breathe shared air are beyond uncomfortable—they can be unsafe. It is not only inconvenient for the patients to stand in long queues but also the crowd prove to be a breeding ground for germs and potential infections.
Virtual waiting rooms enable social distancing to support a better patient experience and better outcomes. A virtual waiting room helps you prevent your healthcare organization from being associated with pesky sounds, smells, people, and boredom that can easily be avoided.
No waiting in long queues for booking appointments, patients can book their slot in the comfort of their homes
Patients can track the queue virtually in the real time and visit the clinic accordingly, no rush or crowd anywhere
Social Distancing shall be properly practised during the covid times.
Patients can book appointments and tests in the comfort of their homes without manually standing in a queue.
They can keep a full record of their healthcare visits.
They can easily check the availability of the doctor without visiting the clinic.
They don't have to wait or rush around the hospital; instead they would be able to know when their turn would arrive by tracking through the app in real-time.
Doctors can keep a track of the patients visiting them.
Authentication for both doctors and patients to ensure authenticity and avoid nuisances.
Both doctors and patients shall be having profiles created with their details on it.
No other patient or user can view the details of any other patient which maintains privacy.
Patients can directly access and book slots, no involvement of any third-party or charge of extra fees.

Challenges we ran into

We have used the astraDB database for the first time, so we had to figure it out how to implement the database queries in our node.js application, finally we came through the cassandra query language which managed to sort this hurdle. Then there was a major task to implement the initial idea in terms of code and make it work. We had to encounter several bugs in the process which were solved by trying several solutions, with patience and sheer determination. While deploying the app, we had to face several issues and warnings, which eventually got sorted and we finally succeeded in completing the project.