Download Inside Microsoft Exchange Server 2007 Web Services by David Sterling, Michael Mainer, Ben Spain, Mark Taylor, Huw PDF

By David Sterling, Michael Mainer, Ben Spain, Mark Taylor, Huw Upshall

Dive deep into the structure of trade internet Services--and grasp the intricacies for getting access to info with the recent, unifying API. alternate internet providers bargains new performance, changing outdated, disparate APIs. Written by means of individuals of the Microsoft trade Server 2007 and trade net providers product groups at Microsoft, this functional advisor introduces builders to replace net providers. It comprises finished, in-depth assurance of the structure and key positive aspects, together with messaging, folders, calendaring, projects, notifications, looking, availability, and autodiscovery. builders who're relocating functions utilizing prior APIs to interchange internet prone will make certain the proper net prone constructs--and the consequences of these judgements. additionally, builders writing new software program will advance a well-grounded realizing of the tools to be had and the way to constitution interplay with alternate Server 2007 for optimum gain and function. This e-book assumes simply wisdom of ways to jot down HTTP requests, however it presents proxy examples in Microsoft visible C#В®.

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Unfortunately, the "contract first" approach did result in some "interesting" artifacts being surfaced in the autogenerated proxies. 36 Part I: The Basics Part I: The Basics 37 Choice Elements XML schema exposes the idea of a "choice" in which a given slot within an instance document can contain one[16] of the items defined by the choice. As an example, consider the schema in Listing 1-6. [16] Or more, depending on the maxOccurs attribute set on the choice element. However, in EWS, you do not use choices that allow for more than one item, so ignore that "feature" right now.

To access a non-primary mailbox to which you might have rights, you need to use delegate access, which is Part I: The Basics 45 46 Part I: The Basics discussed later in this chapter. Exchange Web Services Indentifiers Usually, the mailbox itself isn't terribly interesting. However, the contents of the mailbox are. Each item or folder within a mailbox must have a way to distinguish it from another item or folder within the mailbox (and even outside of the mailbox). You make this distinction by using identifiers, of which there are three basic categories in Exchange Web Services: folder, item, and attachment ids.

1] Using this identity, we can perform an Active Directory lookup to determine which mailbox is associated with the caller's account. As such, there is no need to add any mailbox-identifying data within the request if the caller is trying to access his or her own mailbox. [1] Anonymous access is not permitted in EWS. It is worthwhile noting that there is a difference between the caller's primary mailbox and any other mailbox to which the caller has owner rights. By definition, a given mailbox user account can only be associated with a single mailbox because the user object within the Active Directory has a single mailbox globally unique identifier (GUID) that points to the mailbox in question.

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