A Healthcare Data Exchange that enables exchange of patient health records, particularly CCDAs between EHRs using blockchain. Since, the data is exchanged in a decentralized way, any EHR from any location can join the exchange network. The system is designed to be a decentralized alternative to the centralized HIE system in the US.

1. Clone the repo(check git_instructions.md) & run npm install (only once) inside the dir.
2. Delete the sample.xml file in hie_dir/ (if present).
3. Run nodemon hie.js to start the express server.
4. Run node dummy\ ehr.js to start transfer of the sample.xml file.
5. Check the console logs and hie_dir/ to see the result.

ccda_store has ccda files created by the clinic ccda_cache has ccda files requested by the clinic ehr_store has ccda files created by the ehr software. files from this folder will be uploaded to ccda_store on UploadFile