The server processes requests and returns responses, which include conventional HTTP response codes.The client sends requests to the server.Veeam Backup for Microsoft Office 365 REST API relies on the client-server model: Hyperlinks can point at collection's individual resources, related resources or related collections. Veeam Backup for Microsoft Office 365 REST API is self-hosted as a independently from IIS. Every collection has hyperlinks that end with resource identifiers. Veeam Backup for Microsoft Office 365 exposes its API methods through the Web Service API based on the REST (Representational State Transfer) framework and Open Data Protocol (OData). Collections are modeled as an array of objects. Resources of the same entity type comprise a collection. All individual resources have a JSON representation and system resource identifiers, which help to locate a resource by its URL. HAL expresses the resources and relationships between them as hyperlinks and enables navigation through the API. Veeam Backup for Microsoft Office 365 REST API is resource-based and uses Hypertext Application Language (HAL). With REST API developers can use HTTP requests and standard HTTP methods to query information about Veeam Backup for Microsoft Office 365 methods and perform most of the operations available in the user interface. Veeam Backup for Microsoft Office 365 exposes its API methods through the Web Service API based on the REST (Representational State Transfer) framework and Open Data Protocol (OData).