Expanse Explorer

 This branch is 13 commits ahead, 4 commits behind ethereumclassic:master.
ETC Explorer
Live Version: etherhub.io​
Follow the project progress at: ETC Block Explorer Development​
Local installation
Clone the repo
git clone https://github.com/ethereumclassic/explorer
Download Nodejs and npm if you don't have them
Install dependencies:
npm install
Install mongodb:
MacOS: brew install mongodb
Ubuntu: sudo apt-get install -y mongodb-org
Populate the DB
This will fetch and parse the entire blockchain.
Setup your configuration file: cp config.example.json config.json
Edit config.json as you wish
Basic settings:
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{
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    "nodeAddr":     "localhost",
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    "wsPort":       8546,
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    "startBlock":   0,
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    "endBlock":     "latest",
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    "quiet":        true,
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    "syncAll":      true,
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    "patch":        true,
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    "patchBlocks":  100,
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    "bulkSize":     100,
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    "settings": {
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        "symbol": "ETC",
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        "name": "Ethereum Classic",
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        "title": "Ethereum Classic Block Explorer",
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        "author": "Elaine",
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        "rss": "https://ethereumclassic.org",
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        "reddit": "https://www.reddit.com/r/EthereumClassic",
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        "twitter": "https://twitter.com/eth_classic",
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        "linkedin": "https://www.linkedin.com/company/ethereum-classic",
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        "github": "https://github.com/ethereumclassic",
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        "logo": "/img/explorer-logo.png",
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        "copyright": "2019 © Ethereum Classic.",
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        "poweredbyCustom": false,
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        "poweredbyEtcImage": "/img/powered-by-etcexplorer-w.png",
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        "poweredbyEtc": true,
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        "useRichList": true,
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        "useFiat": true,
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        "miners": {
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            "0xdf7d7e053933b5cc24372f878c90e62dadad5d42": "EtherMine",
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            "0xc91716199ccde49dc4fafaeb68925127ac80443f": "F2Pool",
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            "0x9eab4b0fc468a7f5d46228bf5a76cb52370d068d": "NanoPool",
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            "0x1C0FA194a9d3B44313DCD849F3C6be6Ad270a0A4": "MiningPoolHub",
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            "0x4750e296949b747df1585aa67beee8be903dd560": "UUPool",
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            "0xef224fa5fad302b51f38898f4df499d7af127af0": "91pool",
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            "0x0073Cf1B9230cF3EE8Cab1971B8DbeF21eA7B595": "2miners",
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            "0x4c2b4e716883a2c3f6b980b70b577e54b9441060": "ETCPool PL",
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            "0xd144e30a0571aaf0d0c050070ac435deba461fab": "Clona Network",
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            "0x568f58bf1667504fdf5aa02d776c156f940178a5": "Whalesburg",
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            "0x3b2d2613ad66d66ee0cb518aeeccc98e9e3b19c0": "private(0x3b2d2613)",
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            "0x919973eb38844313dc31c41e140700d6e333f8d5": "private(0x919973eb)",
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            "0xb205f337bad80e28351c7540b741c81470c4927f": "private(0xb205f337)",
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            "0x232cad0429e653ab610fbcf7e7ebee2f05f28410": "private(0x232cad04)",
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            "0x999c2944807874d3677ee3c6065c8a8a92721ac5": "NinjaPool.jp",
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            "0x39cd14977601184b7da518fd352261aad0cb9fd3": "91pool",
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            "0xf35074bbd0a9aee46f4ea137971feec024ab704e": "Solo Mining Pools",
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            "0xa97ed75172773ec705c2c78d999d3203199101bd": "epool",
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            "0x58b3cabd0c5c777da2c1c4d4f7ecc8afe5674f20": "private(0x58b3cabd0)",
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            "0x87cfd09c483fe65352456bb26c784a0e4c4ba389": "ArsMine",
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            "0x5bc9ccbd3115cefb6f382d33e8ce2a0aba084da4": "private(0x5bc9ccbd3)",
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            "0x4924414988feb1ee16e29298509f96317400eb57": "private(0x492441498)",
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            "0xa9a926bed50dc038b20bb20de361e4c35aae51fc": "private(0xa9a926bed)",
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            "0x0073cf1b9230cf3ee8cab1971b8dbef21ea7b595": "2miners",
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            "0x004730417cd2b1d19f6be2679906ded4fa8a64e2": "2miners",
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            "0x1c0fa194a9d3b44313dcd849f3c6be6ad270a0a4": "MiningPoolHub"
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         }
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    }
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}
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Name
Explanation
nodeAddr
Your node API RPC address.
wsPort
Your node API WS (Websocket) port. (RPC HTTP port is deprecated on Web3 1.0 see https://web3js.readthedocs.io/en/1.0/web3.html#value)
startBlock
This is the start block of the blockchain, should always be 0 if you want to sync the whole ETC blockchain.
endBlock
This is usually the 'latest'/'newest' block in the blockchain, this value gets updated automatically, and will be used to patch missing blocks if the whole app goes down.
quiet
Suppress some messages. (admittedly still not quiet)
syncAll
If this is set to true at the start of the app, the sync will start syncing all blocks from lastSync, and if lastSync is 0 it will start from whatever the endBlock or latest block in the blockchain is.
patch
If set to true and below value is set, sync will iterated through the # of blocks specified.
patchBlocks
If patch is set to true, the amount of block specified will be check from the latest one.
useRichList
If useRichList is set to true, explorer will update account balance for richlist page.
useFiat
If useFiat is set to true, explorer will show price for account & tx page. ( Disable for testnets )
Mongodb Auth setting.
Configure MongoDB
In view of system security, most of mongoDB Admin has setup security options, So, You need to setup mongodb auth informations. Switch to the built-in admin database:
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$ mongo
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$ > use admin
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1.
Create an administrative user (if you have already admin or root of mongodb account, then skip it)
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# make admin auth and role setup
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$ > db.createUser( { user: "admin", pwd: "", roles: ["root"] } )
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And, You can make Explorer's "explorerDB" database with db user accounts "explorer" and password "some_pass_code".
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$ > use explorerDB
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$ > db.createUser( { user: "explorer", pwd: "", roles: ["dbOwner"] } )
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$ > quit()
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Above dbuser explorer will full access explorerDB and clustor setting will be well used on monitoring the multiple sharding and replication of multiple mongodb instances. Enable database authorization in the MongoDB configuration file /etc/mongodb.conf by appending the following lines:
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auth=true
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Restart MongoDB and verify the administrative user created earlier can connect:
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$ sudo service mongodb restart
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$ mongo -u admin -p your_password --authenticationDatabase=admin
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If everything is configured correctly the Mongo Shell will connect and
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$ > show dbs
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will show db informations. and You can add modified from ./db.js:148 lines, add auth information and mongodb connect options.
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mongoose.connect(process.env.MONGO_URI || 'mongodb://localhost/explorerDB', {
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  useMongoClient: true
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  // poolSize: 5,
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  // rs_name: 'myReplicaSetName',
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  // user: 'explorer',
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  // pass: 'yourdbpasscode'
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});
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And explore it.
Run
The below will start both the web-gui and sync.js (which populates MongoDB with blocks/transactions).
npm start
You can leave sync.js running without app.js and it will sync and grab blocks based on config.json parameters
npm run sync
Enabling stats requires running a separate process:
npm run stats
Enabling richlist requires running a separate process:
npm run rich
You can configure intervals (how often a new data point is pulled) and range (how many blocks to go back) with the following:
RESCAN=100:7700000 node tools/stats.js (New data point every 100 blocks. Go back 7,700,000 blocks).
Docker installation
Set nodeAddr in config.json to host.docker.internal
Run docker-compose up

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