Which types of APIs does ArcGIS Online provide for developers?

ArcGIS Online provides developers with the REST and JavaScript APIs, which are essential for building and integrating GIS applications and services.

The REST API is widely used in web-based applications to interact with ArcGIS services and resources over the web. This API allows developers to perform various operations such as querying, creating, updating, and deleting spatial data in a standardized way. Its versatility and support for various programming languages make it a popular choice among developers for accessing and manipulating GIS resources.

The JavaScript API, on the other hand, is specifically designed to create web-based mapping applications. It provides a rich set of functions that enable developers to embed maps directly in web pages, perform spatial analysis, and implement interactive features like geocoding, editing, and drawing. This API supports modern web browsers and is optimized for high performance, making it a key component for developing user-friendly GIS applications.

The combination of REST and JavaScript APIs allows developers to create robust and dynamic interfaces that leverage the full capabilities of ArcGIS Online, ensuring that applications are both functional and visually engaging.