# u-js-sample A small Node.js command-line example using `universa-core2@2.0.0-alpha.1`. ## Initialize and test ```sh npm ci scripts/test-network.sh ``` The test loads `src/universa.json` through `Topology`, connects with `Network`, authenticates to every available node, and verifies `sping=spong`. The alpha package intentionally has no bundled default topology, so applications must provide one explicitly. ## Examples ```sh npm start -- --generate-key npm start -- --test-network ```