Digitised and Decentralized Block Chain Technology Python Project
Download as DOCX, PDF0 likes89 views
This document outlines the steps to run a blockchain project using Python and Django. It describes setting up the development environment with Python 3.7 and installing Django using pip. The project contains 4 modules: a Peer module to add peer details, a Block module to add peers to blocks, a Transaction module for peers to transfer coins, and a Chain module that validates transactions and adds them to the chain if the hash is validated. It provides instructions on using the web interface to add peers, view peers and blocks, perform transactions between peers, and view the full transaction chain. The blockchain code uses functions to validate all transactions by comparing old and new hash codes.
Digitised and Decentralized Block Chain Technology Python Project
- 1. To run projectinstall python3.7thenusingpipcommandinstall djangousingbelow command Pipinstall django Put BlockchainfolderinyoursystemCdirectoryandrun below commandtostart webserverthen openbrowserandenterbelowURL toget below screen http://127.0.0.1:8000/index.html andpressentertoget below screen Thisprojectconsistof 4 modules PeerModule:usingthismodule we will addpeerdetailstoapplication Block Module:usingthis module we canaddpeerto block TransactionModule:one peercan transfercointo otherpeer Chainmodule:if transactioncompletesandhashcode validatedthentransactionwill be addedto chainmodule Firstscreen In above screenclickon‘AddPeers’linktoaddnew peerdetails
- 2. In above screenIam addingnewpeeras ‘raju@gmail.com’ andthe entrywillbe available here till it addedto blockand afteraddingtoblockentrywill be deletedfrompeerscreen.Now clickon‘Add Peer’buttontoget below screen In above screenwe can see newlyaddedpeerdetailsshowinginabove screentable.Now clickon ‘AddPeersToBlocks’linkto addthispeerto blockchain.
- 3. In above screenall addedpeerstoblockchainwill be displayedhere withtheiroldand new hash code as proof of work.We can see inabove screenNew Hashof firstrow ismatch withprevious hash of secondrowand goeson till transactionexecutedsuccessfullywithhashvalidation.Scroll above screentoviewcreateddate also. Nowwe can selectnewpeername fromdropdownbox and clickon ‘Addto Block’buttonto add newpeerto newblock
- 4. In above screennewpeeralsoaddedtoblockandonce itaddedthenthat peerwill be removed fromdrop downbox.Nowclickon ‘Transactions’linktoperformtransactionbetweenblockchain users. In above screenfrompeerandchoose desire topeerfromdropdownbox and thenenteramount and clickon ‘SubmitTransaction’buttontotransferfund
- 5. In above screenIam sending100 coinsandafter transactioncomplete will getbelow screen Nowclickon ‘ViewChain’linktoviewall transactionsdetails
- 6. In above screenfromblockchainwe can retrieve all transactiondetails. Below blockchaincode use to validate transactions
- 7. In above screen is_valid_proof andproof_of_workfunctionsvalidateall transactionswitholdand newhashcode