This section will teach us to work with Ethereum outside the browser. Standard libraries that can be used on Java, Python, Go, or .NET have been developed by the Ethereum team. These are accessible directly from GitHub at https://github.com/ethereum.
One essential feature that you need in order to use Ethereum outside your browser is a connection to the Ethereum network. This connection can be direct—that is, connected directly to your application—or you can use a relay server. Even though using a relay server is not an optimal option, it is completely possible. To use a relay server, you first need to have a server of your own that is centralized in nature and only accepts presigned transactions.
Another requirement that is necessary for using Ethereum outside your browser is the Ethereum library of the language that you will be using...
