bootstrap + web firebase realtime + firebase storage
Auth：Use Email&password then input one user with email & password. Login use be added user.
index.html <!doctype html> <html lang="zh-Hant-TW"> <head> <!-- Required meta tags --> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <!-- Bootstrap CSS --> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous"> <link type="text/css" rel="stylesheet" href="https://cdn.firebase.com/libs/firebaseui/4.0.0/firebaseui.css" /> <title>Hello, world!</title> </head> <body> <div class="container"> <div id="firebaseui-auth-container" class="alert alert-light" role="alert"></div> </div> <div class="container my-1"> <div class="row"> <div class="col-sm">Login Status <div class="user-signed-in" style="display: none;"><span class="badge badge-pill badge-success">user-signed-in</span></div> <div class="user-signed-out" style="display: none;"><span class="badge badge-pill badge-secondary">user-signed-out</span></div> </div> <div class="col-sm"><a class="btn btn-outline-primary" data-toggle="collapse" href="#multiCollapseExample1" role="button" aria-expanded="false" aria-controls="multiCollapseExample1">Account Details</a> <div class="collapse multi-collapse" id="multiCollapseExample1"> <div class="card card-body"> <pre id="account-details">.
https://github.com/ethereum/go-ethereum/issues/18405
That’s generally fine. The way clique works is that the in-turn sealer who should ideally sign next tries to sign and propagate the block immediately when the timer ticks. If no in-turn block appears within 500ms, the other signers start potentially creating alternative blocks (with random delays), this ensures that even if a signer is missing, the chain progresses more or less properly.
Now, if the original in-turn signer does come around and publish its block with some delay, that might reorg out alternative blocks signer by out-of-turn signers.
https://stackoverflow.com/questions/34624510/how-to-use-makefile-in-docker-machine
tce-load -wi make
Use keythereum, web3
npm install keythereum npm install web3 ．datadir need to correct.
UTC/keystore/UTC–2019-03-25T09-10-35.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
．address need correct “0xooooooooooooooooooooooooo”
．password need correct, this example is empty.
．web3 localhost is fake, don’t need have geth.
var keythereum = require("keythereum"); var datadir = "UTC"; var address= "0xooooooooooooooooooooooooo"; const password = ""; var keyObject = keythereum.importFromFile(address, datadir); var privateKey = keythereum.recover(password, keyObject); console.log(privateKey.toString('hex')); Web3 = require('web3') web3 = new Web3(new Web3.providers.HttpProvider("localhost")); var address = web3.
https://segmentfault.com/a/1190000019776978
https://www.oxxostudio.tw/articles/201904/firebase-realtime-database-rules.html
https://angularfirebase.com/lessons/understanding-firebase-database-rules-by-example/
https://solidity.readthedocs.io/en/v0.5.0/050-breaking-changes.html#example
https://github.com/ethereum/solidity/blob/develop/Changelog.md
