digital healthcare on hyperledger fabric

This is api server which interacts with healtcare chaincode installed on hyperledger fabric basic_network.

Refer below urls.
https://github.com/hyperledger/fabric-samples
https://github.com/pramodramdas/digital_healthcare

Steps to setup chaincode:

• Bring fabric basic_network up
• Register chaincode from root folder
  CORE_CHAINCODE_ID_NAME="healthcare:v0" npm start -- --peer.address localhost:7052
• Login to cli
  docker exec -it cli bash
• Install chaincode
  peer chaincode install -n healthcare -v v0 -l node --cafile /etc/hyperledger/configtx/ -p /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/digital_health_fabric/

  Note: I had copied this project to crypto-config(basic_network) and attached volume to cli container using docker-compose

  volumes:

  - ./crypto-config:/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/

• instantiate chaincode
  peer chaincode instantiate -o orderer.example.com:7050 -C mychannel -n healthcare -l node -v v0 -c '{"args":["init"]}'
• Optional invoke using cli, peer chaincode invoke -o orderer.example.com:7050 -C mychannel -n healthcare -c '{"Args":["registerPatient","patient5","20"]}'

Steps to interact with digital healthcare chaincode using node sdk.

• Remove any files from hfc-key-store folder
• Register admin to ca
  node enrollAdmin.js
• Start server
  node server.js
• Test chaincode and api
  npm run test

List of apis

• Register doctor

  {
    "name":"doctor1",
    "email": "doctor1",
    "password": "doctor1",
    "role": "doctor"
  }
  

• Register Patient

  {
    "name":"patient1",
    "email": "patient1",
    "password": "patient1",
    "age": "24",
    "role": "patient"
  }
  

• Login patient and doctor
  POST /login

    "email": "patient2",
    "password": "patient2"
  }
  

  same for doctor

  Note: This api returns authtoken is login success. we need to pass this token as "authtoken" in header to other apis.

• Patient grant access to doctor (use patient authtoken)

  {
    "type": "grant",
    "doctorEmail": "doctor2",
    "org":"org1"
  }
  

• fetch patient info for doctor after access (use doctor authtoken, useremail=<patient_email>)

  Note: patient info successfully fetched if and only if doctor has been granted access by patient.

• fetch patient info for himself (use patient authtoken)
  GET /getPatientInfo

  Note: a patient can't see other patient's info.

• fetch doctor info for himself (use doctor authtoken)
  GET /getDoctorInfo

  Note: a doctor can't see other doctor's info.

• patient upload file, first user has encrypt a file with secret and upload that file to ipfs.
  hash returned from ipfs after upload and secret shoul be provided in below api, this api will attach file info to patient

  {
    "fileName":"abc.png", 
    "fileType":"png", 
    "secret":<ipfs file encryption secret>, 
    "fileHash":<ipfs file hash>
  }
  

• patient retrieve file info (use patient authtoken, filehash=)
  GET /getFileSecret
• doctor retrieve file info (use doctor authtoken, filehash=, useremail=<patient_email>)
  GET /getFileSecret

  Note: doctor can retrieve file secret only if he as access to patient.