README.md

Integrating Keplr to the frontend with Graz. This project is bootstraped with npx create-react-app

This project is to test the integration of Keplr Wallet to the frontend using Graz (developed by StrangeLove)

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Installation

npm install graz

• Graz install the recommened dependencies like Cosmjs --> @cosmjs/stargate @keplr-wallet/cosmos @cosmjs/cosmwasm-stargate @cosmjs/proto-signing

• Installing Cosmjs results into an error of polyfills

  • To avoid this either use [email protected] or follow this link from stack overflow
  • I'm using the fix from StackOverflow
  • npm install --save-dev react-app-rewired crypto-browserify stream-browserify assert stream-http https-browserify os-browserify url buffer process
  • Create a config-overrides.js at the root of the project with the following:

  const webpack = require('webpack');
  
   module.exports = function override(config) {
   const fallback = config.resolve.fallback || {};
   Object.assign(fallback, {
       "crypto": require.resolve("crypto-browserify"),
       "stream": require.resolve("stream-browserify"),
       "assert": require.resolve("assert"),
       "http": require.resolve("stream-http"),
       "https": require.resolve("https-browserify"),
       "os": require.resolve("os-browserify"),
       "url": require.resolve("url")
   })
   config.resolve.fallback = fallback;
   config.ignoreWarnings = [/Failed to parse source map/];
   config.plugins = (config.plugins || []).concat([
       new webpack.ProvidePlugin({
           process: 'process/browser',
           Buffer: ['buffer', 'Buffer']
       })
   ])
   return config;
   } 
  

  • Replace this

     "scripts": {
  "start": "react-scripts start",
  "build": "react-scripts build",
  "test": "react-scripts test",
  "eject": "react-scripts eject"
  },
  

  • with this

      "scripts": {
  "start": "react-app-rewired start",
  "build": "react-app-rewired build",
  "test": "react-app-rewired test",
  "eject": "react-scripts eject"
  },
  

Using graz

• The functionalities graz provides with are very well documented here at Graz Docs
• Also check out this tutorial from StrangeLove guys, which this project heavily follows.