The XSN Block Explorer (https://xsnexplorer.io/) is composed by several sub projects:
The server is a backend service that interacts with the xsnd (RPC server) to provide a RESTful API for retrieving information from the blockchain, it also maps the blockchain to a relational database to support several operations that otherwise would kill the application performance.
The web-ui is the frontend application that interacts with the server project to display the data in a browser.
The infra project contains all stuff related to the required infrastructure, like deployment steps and hopefully deployment scripts (TODO).
We are happy to accept contributions, please read the CONTRIBUTING.md file to see our rules.