'2018/11'에 해당되는 글 11건

apt-get install mongodb-server mongodb-clients 

 vi /etc/mongodb.conf

포트변경

bind_ip = 0.0.0.0  <---127.0.0.1   변경해야 외부 접속 가능

port = 31337

주석풀기

auth = true

 mongod --version

root@tkpark-VirtualBox:~/node-server# netstat -an | more
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:31337         0.0.0.0:*               LISTEN
tcp        0      0 192.168.0.118:22        192.168.0.188:65507     ESTABLISHED
tcp        0     64 192.168.0.118:22        192.168.0.188:65516     ESTABLISHED
tcp6       0      0 :::22                   :::*                    LISTEN
tcp6       0      0 ::1:631                 :::*                    LISTEN

root@tkpark-VirtualBox:/etc# mongo --port 31337
MongoDB shell version v3.6.3
connecting to: mongodb://127.0.0.1:31337/
MongoDB server version: 3.6.3
>

use admin
db.createUser(
     {
         user: "parktk",
         pwd: "1234",
         roles: [ { role: "userAdminAnyDatabase", db : "admin"} ]
     }
)

>db.auth("parktk", "1234" )

use test
db.createUser(
      {
         user : "test",
         pwd : "12345",
         roles : [
                      {  role : "dbAdmin", db : "test"   },
                      {  role : "readWrite", db : "test" }
                    ]
        }
) 

> db.auth("test", "12345" )
1

> db.auth("test", "12347" )
\Error: Authentication failed.
0
>
 

npm install mongodb 

npm install mongoose

root@tkpark-VirtualBox:~/node-server# nodejs ex1.js
(node:9056) DeprecationWarning: current URL string parser is deprecated, and will be removed in a future version. To use the new parser, pass option { useNewUrlParser: true } to MongoClient.connect.
Connected correctly to server 

const mongoose = require('mongoose');
mongoose.connect('mongodb://test:12345@localhost:31337/test', { useNewUrlParser: true });
var db = mongoose.connection;
db.on('error', function(){
    console.log('Connection Failed!');
});
db.once('open', function() {
    console.log('Connected!');
});

console.log(Date.now());
db.close();

root@tkpark-VirtualBox:~/node-server# nodejs ex1.js
1543570449195
Connected!
root@tkpark-VirtualBox:~/node-server#

https://api.etherscan.io/api?module=account&action=tokentx&

contractaddress=0xB8c77482e45F1F44dE1745F52C74426C631bDD52

&page=1&offset=100&sort=desc&apikey=@@@@

web3 = new Web3(new Web3.providers.HttpProvider("https://ropsten.infura.io/"));

var result=web3.eth.accounts.create('passswordseed')
console.log(result.address);
console.log(result.privateKey);
 

https://ropsten.etherscan.io/api?module=account&action=txlist

&address=0xFf0797D06e8F9897B1D5066C10D9497Ed7054A47

&startblock=0&endblock=99999999&page=1&offset=30&sort=desc

&apikey=@@@@@@@@@

const Web3 = require("web3");
const WSS = "wss://ropsten.infura.io/ws";
var provider = new Web3.providers.WebsocketProvider(WSS);
var web3 = new Web3(provider);
var name = 'newBlockHeaders'; // e.g.

web3.eth.subscribe(name, (error, result) => {
        if(!error) {
            console.log(result);
        } else {
            console.log('Error:', error);
        }
    }).on("data", function (transaction) {
        console.log(transaction);
});

('0x565000ed16f67048320398e83cb66c28c3d4db77bb50fdb1826cf36e3af04de1').then(console.log);
const web3 = new Web3(new Web3.providers.HttpProvider("https://ropsten.infura.io/"));

var receipt = web3.eth.getTransactionReceipt('0x565000ed16f67048320398e83cb66c28c3d4db77bb50fdb1826cf36e3af04de1').then(console.log); 

리눅스 버전 : ubuntu-18.04.1-desktop-amd64.iso 

Web3 = require("web3");
web3 = new Web3(new Web3.providers.HttpProvider("https://ropsten.infura.io/v3/f76f49a440bf4303ab6d2c1aa21c7537"));
const toAddress = "0x7a0e3AB3c9626018850c06A099981F0B1f183D95";
const privateKey = "A209084D071D63F598EB5C3A1B315CE8BDFED7906FF6D071CDADAB34244AAA69";
web3.eth.accounts.signTransaction({
      to: toAddress,
      value: "100000000",
      gas: 21000
  }, privateKey, function (err, result) {
      if (err) {
          console.error(err);
          return;
      }
      console.log('rawTransaction ${result.rawTransaction}');
      web3.eth.sendSignedTransaction(result.rawTransaction).on('receipt', console.log);
  });  

var Web3 = require("web3")
var web3 = new Web3("https://ropsten.infura.io/v3/f76f49a440bf4303ab6d2c1aa21c7537")
var privateKey = "0xA209084D071D63F598EB5C3A1B315CE8BDFED7906FF6D071CDADAB34244AAA69"

var tx = {
    from: '0xFf0797D06e8F9897B1D5066C10D9497Ed7054A47',
    to: '0x7a0e3AB3c9626018850c06A099981F0B1f183D95',
    value: '1000000000',
    gas: 2000000,
    gasPrice: '234567897654321',
    nonce: 0,
    chainId: 3
}

var signed = web3.eth.accounts.signTransaction(tx, privateKey).then(console.log)
web3.eth.sendSignedTransaction(signed.rawTransaction)

const Web3 = require("web3");
const web3 = new Web3(new Web3.providers.HttpProvider("https://ropsten.infura.io/v3/f76f49a440bf4303ab6d2c1aa21c7537"));
const toAddress = "0x7a0e3AB3c9626018850c06A099981F0B1f183D95";
const privateKey = "0xA209084D071D63F598EB5C3A1B315CE8BDFED7906FF6D071CDADAB34244AAA69";
web3.eth.accounts.signTransaction({
      to: toAddress,
      value: "300000000000000000",
      chainId: 3,
      gas: 21000
  }, privateKey, function (err, result) {
      if (err) {
          console.error(err);
          return;
      }
      console.log('rawTransaction ${result.rawTransaction}');
      web3.eth.sendSignedTransaction(result.rawTransaction).on('receipt', console.log);
  });
 

<head>
<script type="text/javascript" src="https://github.com/ethereum/web3.js/blob/develop/dist/web3.js"></script>
<script type="text/javascript" src="https://github.com/MikeMcl/bignumber.js/blob/master/bignumber.min.js"></script>
<script type="text/javascript">
var result ="";
var web3 = new Web3();
var provider = new web3.providers.HttpProvider('https://ropsten.infura.io/');
web3.setProvider(provider);
function check_select() {
        var address = "0xFf0797D06e8F9897B1D5066C10D9497Ed7054A47";
        var tx="0xf7754179b1f735361ef63be6f940b9aaa163149ca05f9bb0f3791290701ec46f";
        var balance = web3.fromWei(web3.eth.getBalance(address), 'ether');
        document.getElementById("abc").value=balance;
        var receipt = web3.eth.getTransactionReceipt(tx);
        result = "tx:  "+tx+"\n\n";
        result+="blockHash:  "+receipt.blockHash+"\n\n";
        result+="blockNumver:  "+receipt.blockNumber+"\n\n";
        result+="cumulativeGasUsed: "+receipt.cumulativeGasUsed+"\n\n";
        result+="from: "+receipt.from+"\n\n";
        result+="gasUsed: "+receipt.gasUsed+"\n\n";
        result+="status:  "+receipt.status+"\n\n";
        result+="to:  "+receipt.to+"\n\n";
        result+="transactionHash:  "+receipt.transactionHash+"\n\n";
        result+="transactionIndex: "+receipt.transactionIndex+"\n\n";
        document.getElementById("output").value=result;
        console.log(receipt);
        }
</script>
</head>
<body>
Ropsten test ethereum Server
<br/>
<input type="button" name="" value="select" onclick="check_select();"/>
<br/>
balance account: <input type='text' id="abc" readonly/>
<br/>
<br/>
transaction check
<br/>
<textarea id="output" style="width:70%; height:70%" readonly/>
</body>
</html>
 

rm -rf /usr/bin/node

 ln -s /usr/bin/nodejs /usr/bin/node