In this one hour workshop, we will be exploring basic web development. Using the JavaScript library Leaflet and calls to the "Where the ISS at?" API, we will produce an interactive map showing the real-time over-earth location of the International Space Station. By the end of this lesson, you will understand how to write basic code in JavaScript and HTML, and how API data can be used to produce a tidy geospatial visualization. Before the event: we will build our script and render our interactive visualization entirely in JSFiddle, so please make a free account before the workshop! Head to this site and navigate to "Workshop 4" to access this event's code and to download the event's cheat sheet.