gupta-shrinath / bloc

A To-do app that uses ethereum blockchain

BLOC

• Bloc is a to-do application that runs on your local ethereum blockchain.
• Bloc uses smart-contracts and web3 js to talk to your local ethereum blockchain.

Dependencies

• Bootstrap 4.5.2
• Jquery 3.5.1
• Web3 1.2.11
• Solidity ^0.5.1
• Ganache 2.4.0.1317

Install

• Download Ganache for local ethereum blockchain.
  • Click on Quickstart Ethereum and after that note the address labeled under RPC Server (should be something like this http://127.0.0.1:7545) and make sure to copy the same address in js/getAccount.js file line 1.
• Go to Remix IDE click on the plus icon in the file explorers located in the left panel and name the file as bloc.sol (Make sure to sure http site not https).
  • Copy the code present in bloc.sol from this repo.
  • Go to solidity compiler located in the left panel and click on compile bloc.sol. down you'll find a button with copy icon and text as ABI click on it.Paste it in js/config.js line 1
    

    let contractABI = COPIED TEXT;
    The copied text will be enclosed in [].

  • Go to deploy and run transaction under environment select Web3 Provider.
  • If you get the message Not possible to connect to the Web3 provider. Make sure the provider is running, a connection is open (via IPC or RPC) or that the provider plugin is properly configured. this is due to CORS policy in browsers.
  • The solution for chrome browser is go to chrome://flags/#block-insecure-private-network-requests and select disabled. Relaunch the browser. Disabling that flag does mean you're re-opening the security hole that Chrome's new behavior is meant to close.You can read more here.
  • Enter the address you copied from Ganache and paste it click on OK.
  • Now a deploy button will be visible click on it.
  • Down you'll find Deployed Contracts label now there will a copy icon button click on it
    and paste in js/config.js line 2

    let contractAddress = 'COPIED text';
    The copied text might look like this 0xF3017acEDd45526aC6153FBBCfcA8096173D245a.

• Download VSCode for live server extension (any other server will also work)
• Go to Extensions on the left panel search for live server and install it.
• Open the folder containing this repo and down in the blue status bar and click on Go live.

Screenshots

Credits

Icons8

Shields

Sharanda

Additional Info.

• I subconsciously tend to write complex solution to simple problem so if you found a simpler way to a particular thing you can reach out to me on twitter and let me know.
• I would like to thank Ankit Gupta @ankitecd for reviewing the js/app.js file.

License

Bloc App is licensed under MIT LICENSE.