amarinelli/agol-data-faker

agol-data-faker is a tool that generates realistic-looking fake data mimicking what ArcGIS Online's REST API would return. ArcGIS Online is a mapping and location-analytics platform, and its REST API is how apps programmatically request maps, geographic features, and other spatial data. This library lets developers get convincing dummy responses without needing a real ArcGIS account or live data. You add the library to your JavaScript project, then use two main functions. One gives you a list of available "schemas", essentially the different data shapes or formats that ArcGIS Online can return. The other generates fake data matching whichever schema you pick. The result is data that looks and is structured like a genuine ArcGIS response, but contains made-up content. This is useful for developers building apps that interact with ArcGIS Online who need to test their code. Instead of hitting a live server, which might be slow, rate-limited, require paid credentials, or return inconsistent data, a developer can plug in this library and get predictable fake responses on demand. For example, if someone is building a dashboard that displays geographic features from ArcGIS, they could use this tool during development to make sure the interface handles data correctly before connecting to a real account. The README doesn't go into much detail beyond the two core functions, but it points to a docs folder for fuller documentation. The project is written in JavaScript and installed through npm, the standard package manager for JavaScript projects, so it fits easily into existing Node-based workflows.