The problem MedLink solves

As health systems and hospitals are under unprecedented stress from the COVID-19 pandemic, their IT departments also are facing critical skills and staffing shortages as they battle unrelenting cyberattacks. In 2021 there are 45 million medical records compromised and in 2020 30 million records are compromised.
26% of medical institutions use third-party vendors for their services which are more vulnerable to hacking.
MedLink is a decentralized place to store all the patient's medical history without any centralized database. It uses the Ethereum blockchain to store all details and gives permission to doctors to see medical records if patients give access. With this methodology, there can not be any DOS or DDOS, SQL injections etc attacks done on the application since usage of blockchain.

Challenges I ran into

I was very much new to IPFS system. So I was not able to get the hash value after uploading the file. I was debugging the complete code but I was still unable to get it. After reading the complete documentation of ipfs I figured out the new version of ipfs has changed the syntax to get the hash value. So i changed the version ipfs library then i was able to retrieve the hash value