Pharma Network

Smart Contract Solution Document

Manufacture, Distribute and Retail the drug in smart and secure way

Author: Saikumar K

Document contains step by step guide to user who would like to understand different methods available implemented in the smart contracts and execute to understand the output.

  Introduction Pharma network is a platform where manufacturer can manufacture a drug and take it to consumer in a secure and smart way. In this document we will going through below topics which will help you to understand various functionalities available in this network. • Setup HyperLedger network which create docker containers for various organization involved in this network • Setup node module which allows client application to execute various methods available in the smart contract • Execute each method through postman Pre-requisites These smart contracts were developed using the VM provided by Upgrad which contains necessary software for deploying and executing smart contracts. Step 1-A: Bootstrap the network Command:

1. Locate ‘network’ folder under ‘pharma-net’ folder of the project
2. Execute the command ./fabricNetwork.sh up, which will prompt for the confirmation to boot the network. Enter ‘Y’ in the terminal to bring up the network. Terminal Screenshot:

Step 1-B: Start the chaincode node application This is needed only for the first time when you setup the network to have necessary node modules are available inside chaincode folder to instantiate smart contract. Command:

1. Enter into docker container for chaincode using command docker exec -it chaincode /bin/bash
2. Install node modules using ‘npm install’ command which will install all necessary Node modules inside chaincode container.
3. Start the node application: npm run start-dev

  Step 1-C: Chaincode Installation and Instantiation Command:

1. Once Step 1-B is complete, execute below command under ‘network’ folder which will install & instantiate the smart contracts in chaincode container and allow us to invoke different methods listed below.
2. ./fabricNetwork.sh install Terminal

  Step 2: Start the chaincode node application This is a must have step before proceeding to Step 4 Command: 4. Go to ‘application’ folder available in ‘pharma-net’ folder. 5. Install node modules using ‘npm install’ command which will install all necessary Node modules required to configure the API URLs to be called by client application. 6. Start the node application: node . Terminal:

  Step 3: Invoke Smart Contract through REST API Initiation Collection addToWallet In order to create each organization into the wallet, we need to have two files. In postman script, replace public and private key for each of the organization before executing ‘addToWallet’ method. Public Key Transporter: /home/upgrad/workspace/pharma-net/network/crypto-config/peerOrganizations/transporter.pharma-network.com/users/[email protected]/msp/signcerts/[email protected] Manufacturer: /home/upgrad/workspace/pharma-net/network/crypto-config/peerOrganizations/manufacturer.pharma-network.com/users/[email protected]/msp/signcerts/[email protected] Retailer: /home/upgrad/workspace/pharma-net/network/crypto-config/peerOrganizations/retailer.pharma-network.com/users/[email protected]/msp/signcerts/[email protected] Distributor: /home/upgrad/workspace/pharma-net/network/crypto-config/peerOrganizations/distributor.pharma-network.com/users/[email protected]/msp/signcerts/[email protected] Private Key Go to below folder for each of the organization and replace the highlighted value. Transporter: /home/upgrad/workspace/pharma-net/network/crypto-config/peerOrganizations/transporter.pharma-network.com/users/[email protected]/msp/keystore/ 5f2b1842c284acb31320b2c4c8c54af75ed73ead88e49a46f1210f97c9e8f1de_sk Manufacturer: /home/upgrad/workspace/pharma-net/network/crypto-config/peerOrganizations/manufacturer.pharma-network.com/users/[email protected]/msp/keystore/ 4aa55d693d4828416a38510e6336af47bc046977b916433f64e6994b4917fc10_sk Retailer: /home/upgrad/workspace/pharma-net/network/crypto-config/peerOrganizations/retailer.pharma-network.com/users/[email protected]/msp/keystore/ 706eadd3b87e0945e663c19f42b8df99d68d4b2d2a3a367b97be945c063d6ed5_sk Distributor: /home/upgrad/workspace/pharma-net/network/crypto-config/peerOrganizations/distributor.pharma-network.com/users/[email protected]/msp/keystore/ fe1faa1b5c31776fae4e8ab50f0b5610b704b783a53b9ce661e1f47ee873a529_sk Postman script for each organization: (can be found under ‘test’ folder) Distributor: distributer-addToWallet Manufacturer: manufacturer-addToWallet Retailer: retailer-addToWallet Transporter: transporter-addToWallet Screenshot of Postman script execution:   Register Company For each of the company, we need to execute registerCompany method to perform the required operation for below mentioned other modules. Postman script for each company: (scripts under initiation collection) • Manufacturer: manufacturer-sunpharma-registerCompany • Distributor: distributor-VGPharma-registerCompany • Retailer: retailer-upgrad-registerCompany • Transporter1: transporter-fedex-registerCompany • Transporter2: transporter-bluedart-registerCompany Screenshot of postman script execution:

  addDrug

Below mentioned postman scripts can be used to add 4 drugs in the network Post man scripts (found under initiation collection) • Drug 1: manufacturer-Paracetamol-001-addDrug • Drug 2: manufacturer-Paracetamol-002-addDrug • Drug 3: manufacturer-Paracetamol-003-addDrug • Drug 4: manufacturer-Paracetamol-004-addDrug Screenshot of postman script execution:

  Supply Chain Collection

Below post man scripts to be executed for each of the functions mentioned below. These postman scripts can be found under ‘Supply Chain’ collection. Method Mapping Method Functionality Postman script SC1 Create PO by Distributor part-a-1-distributor-createPO SC2 Create shipment by Manufacturer part-a-2-manufacturer-createShipment SC3 Update Shipment by Transporter1 part-a-3-transporter-updateShipment SC4 Create PO by Retailer part-b-1-retailer-createPO SC5 Create shipment by Distributor part-b-2-distributor-createShipment SC6 Update shipment by Transporter 2 part-b-3-transporter-updateShipment SC7 Retail drug by Retailer part-c-1-retailer-retailDrug

Screenshot of postman execution: Method: SC1

Method: SC2

Method: SC3

  Method: SC4

Method: SC5

  Method: SC6

Method : SC7

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