item ID

An item ID is a unique identifier representing a single content itemAn item, also known as a content item, is a resource stored in a portal such as a web map, hosted layer, style, script tool, file, or notebook.Learn more stored, managed, and accessed in a portalArcGIS portal, also known as a portal, is a website with applications and tools that can be used to create, manage, access, and share geospatial content and data. It supports security and authentication, developer credentials, content and data service management, user and group management, and site administration. A portal can be hosted in Esri's infrastructure or your own infrastructure.Learn more, such as a web mapA web map is a map stored as a JSON object that defines properties such as the basemap layer, data layers, layer styles, and pop-up styles. Its JSON structure is defined by the web map specification.Learn more, hosted layerA hosted layer is an item in a portal that contains the properties and settings for a hosted data service or a layer in a hosted data service.Learn more, or file. ArcGIS applications and APIsA Client API is a web, native, or scripting Application Programming Interface (including all ArcGIS, open source, and third-party APIs) that has mapping capabilities and can be used to access ArcGIS location services.Learn more can use the item's URL or item ID to access the item from a portal. The item ID is included in the item page's URL. For example, the web map at https://www.arcgis.com/home/item.html?id=3d355e34cbd3405dbb3f031286f7b39b has an ID of 3d355e34cbd3405dbb3f031286f7b39b.