![]() ![]() While most Rails projects are eventually deployed as production apps on Linux-based servers, OS X is the preferred development environment for Rails geeks. Here’s a closer look - a video of a sea of Macs on developers’ laps: Note that every laptop in the shot, including that of conference organizer Chad Fowler (4th from left) and presenter Adam Keys (5th from right) - is a Mac: It of a group of attendees hanging out between sessions. Outside of Apple’s Worldwide Developer Conference (and possible FOO and BarCamp), you normally don’t see this sort of Mac-PC ratio. Feel free to reach out to us via Twitter if you have any feedback.One of the first things I noticed at last year’s RailsConf conference was that Mac laptops far outnumbered PC laptops. Subscribe to our newsletter for more articles and guides. That’s it! We've successfully connected to the Ethereum network using Ruby. Note that the returned result is in hexadecimal format, thus we use the to_i(16) function to convert it into an integer, base 16.Įxecute the script by running the following in your Terminal:Īfter running this command, you will see the latest Ethereum block number returned on the following line. Line 5: We are printing the block number.Line 4: We are getting the latest Ethereum block number using the eth_block_number method and storing it in block_number.Visit the official eth.rb Github repo for more information. ![]() Line 3: We are creating a new Ethereum RPC client, passing in our Ethereum node URL.Line 1: We are importing the eth gem we installed earlier.Replace the YOUR_ETHEREUM_NODE_URL with the HTTP provider from the instructions above. Open script.rb in a code editor of choice and add the following code: If you choose to use a Terminal, you can use this command: Now, we'll use the eth gem along with our QuickNode endpoint to create a short script to fetch the latest block number using our node.Ĭreate a new file, script.rb, through your Terminal or directly in your file system. We'll use this to connect to the Ethereum network. Then, navigate to the "Get Started" tab and copy the HTTP Provider link: Once you’ve signed up, create an endpoint running on the Ethereum network. If you'd like to leave the heavy lifting to us, you can sign up for a free account on. If you'd like to deploy, host, and manage your own infrastructure, you can skip this section. To build on Ethereum, you'll need an API endpoint to talk to on their network. We can install it from the command line using the RubyGems package manager: Getting Started with QuickNode This gem will allow us to connect to the Ethereum blockchain network using the Ruby language. Once you're ready to move on, we can install the eth gem. ![]() For more information, read this external guide from mac.install. You can make changes to this version without worrying about changing the system's Ruby version. You can make changes to this version, however, instead, we suggest using rbenv or RVM (Ruby Version Manager) to manage a separate Ruby version, which will be installed into a sandbox in your home directory. Note: the version of Ruby that ships with macOS is usually for Apple's own use and it is best not to change it. If it is and the version is older than 2.6, you will need to use a newer one. If this returns a version later than 2.6, you're all set! If the command is not recognized, then you will need to install Ruby. Let's get started!īefore installing the gem, let us first ensure that Ruby is installed. In this guide, we'll take a closer look into how we can install and interact with this package by setting it up locally on our machine and then retrieving the block height from our node. Sign messages and recover signatures for authentication." Source Sign transactions and handle keys anywhere you can run Ruby and broadcast transactions through any local or remote node. It allows the separation of key and node management. ".to build, sign, and broadcast Ethereum transactions. eth.rb also boasts numerous other functionalities listed in their official Github repo: In this guide, we will learn how to connect to the Ethereum network using a Ruby gem (or package) called eth.rb .īy using eth.rb, we can make direct JSON RPC calls to a node from any Ruby application. Ruby has been largely accepted by developers all around the world since its launch, in fact, the biggest tech communities in many cities consist of Ruby developers. Ruby was developed by its creator with an intention to invent a language developers can enjoy learning and using. The Ruby programming language has a huge fanbase. ![]()
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