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As part of my journey to learn more about blockchain, I discovered I had a growing desire to visualize what was happening on the blockchain. I'm quite comfortable in the terminal; however, it's not always the most visually efficient way to interpret something. Not to mention it can be quite exciting to see things happening on a fancy UI! This post will go over 2 tools that work together to visualize various stats and information about the blockchain:.
This is the backend service that runs alongside eth-netstats. This tool will be used to configure the node app. All the configuration and setup for monitoring a node on the Ethereum blockchain is done in this API. This is the frontend portion that provides a UI to visualize several technical components and information about the blockchain.
You can view the public Ethereum blockchain using this dashboard here. In fact, you can even link your own Ethereum node to this tool and contribute to the other nodes providing updates about the public blockchain. Before we can begin to play with the monitoring, we must take some steps to set up a private network.
Take this opportunity to create a private network containing 5 nodes. If you are unfamiliar with how to do this, please refer to my previous blog, A Journey into Blockchain: Private Network with Ethereum for a step-by-step guide. The folder structure looks like the following:. At this point, we're ready to download the tools that will be used to monitor the private network, or in other words, clone the repositories.
Be sure to keep these repositories in an easily accessible place i. NOT in one of the node directories. To clone eth-netstats , run the following command:. Now we'll need to install eth-netstats. Make sure you are in the eth-netstats directory then run the following commands:. To clone eth-net-intelligence-api , run the following command:. There are no specific installation instructions for this tool; however, make sure everything is up to date.
I have run into a few problems getting things to work properly only to discover that a few quick updates did the trick. We'll configure the node app in the next section. Now we're ready to configure the node monitoring app to monitor the private network that we previously setup. To do this we'll need to modify the app. Now that the node app has been configured, it can be started. The backend tool eth-net-intelligence-api uses a node production process manager called PM2.
Most, if not all, of the commands used to interact with the backend node app will begin with pm2. First, cd into the eth-net-intelligence-api directory. Once in this directory, run the command:. The backend is now running. For more details use pm2 --help. Now that the backend node app is running, the frontend can be started.
In a separate terminal window cd into the eth-netstats directory. Therefore, the secret must be passed to the frontend as follows:. You'll notice that no nodes are listed in the monitoring dashboard. That is because no instance of of geth is currently running. In a third terminal window start an instance of geth. If you're unfamiliar with how to do this refer to my previous blog section 5.
Hint, the command should look something like this:. You can learn how to manage send, receive criptocurrency without loosing money or you can use it for your blockchain apps if you are a developer. No, you can't. They have no market value. Would you sell Monopoly bills?
Of course not! If anyone is selling testnet crypto surely is a scam. Yes, in bitcoin a real address begins with "1" or "3", in testnet network an address begins with "m" or "2". In the case of Ethereum both addresses can be used, but you can't transfer ether from Rinkeby to the real network.
The same for Eos, you can have a testnet account only in testnet and not in mainnet and viceversa. There is also a weekly recharge. Registered users that return back cryptocurrency, or use a THT token can recharge the faucet battery. Read carefully these terms and conditions before claiming cryptocurrency.
Working functional website, block explorer, documentation and github repos. Already listed on Coingecko or Coinmarketcap. We do not maintain testnet nodes, so you must provide us an endpoint to work. You must provide us a wallet with a huge amount of testnet tokens. Any donation will highly appreciated. We are looking for new Partners Become a partner. Ethereum Ropsten Faucet This faucet uses a public test network where you can receive or send transactions without spending real money.
How to use You can claim up to 0. If the faucet battery is empty, please wait an hour or tip some ETH tokens. Amount ETH.
Open source platform to write and distribute decentralized applications. Official account of the Ethereum Foundation. apnetvdesiserial.comk is dedicated to foster and improve #Ethereum and the whole blockchain ecosystem. Here we post its most important news of the day, since. We've been at the grindstone working to bring you Status ! $ETH. Chainlink cryptocurrency. $BTC. Ada cryptocurrency. Matic Network cryptocurrency.