Blockchain-Based Healthcare DApp with MetaMask Integration

The aim of this research is to develop a system that addresses the shortcomings and limitations of the current, widely used Hungarian Electronic Health Service Space. The engine of the system, presented below, is the Ethereum blockchain, which provides one of the most secure data storage options available today. The blockchain ensures data storage while protecting sen-sitive patient data from tampering and manipulation. Throughout the research, numerous systems were examined with similar functionalities and delved deeply into the world of blockchain during literature review. Although all planned components were developed during the implementation, it was not necessarily in the planned manner due to complications. The development was followed by thorough testing, and in the concluding section, a summary is provided, along with some possibilities for further development mentioned at the end of the research.