08 | Advanced Features

Jerry Nixon | Microsoft Developer EvangelistDaren May | President & Co-founder, Crank211

Agenda for the Day

First Half Second Half

01 | Animations 05 | Advanced Contracts Pt 1.

02 | Responsive Design 06 | Advanced Contracts Pt 2.

03 | Branding 07 | Media

04 | Reusable Controls 08 | Advanced Features

** MEAL BREAK **

Visit xamlShow on CodePlex

http://xaml.codeplex.com

Windows Live SDK Microsoft Account Using SkyDrive

Module Agenda

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Microsoft Virtual Academy

Windows Live

• Uses OAuth 2.0, JSON and REST APIs

• Simplifies log in and token management

• Provides shims & UI for interacting endpoints

• The SDK provides access to:– SkyDrive– Outlook.com– Skype

Live SDK for Windows 8

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Microsoft Virtual Academy

Microsoft Account

• Microsoft account– Authentication– Personalization– Information– Scopes• wl.basic• wl.signin

• Guidelines– Sign-in state– Enable sign-out

Microsoft account

DEMO

Microsoft Account

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Microsoft Virtual Academy

SkyDrive

• Microsoft’s cloud storage solution for files and photo sharing

• Guidelines for using SkyDrive in Windows 8 Apps– Upload data in response to user action• Apps are allowed to store data without user interaction

– Use SkyDrive for what it does best• Documents, photos, etc.

– Don’t undermine trust• Respect user security and privacy• Warn if data is public, etc.

SkyDrive overview

• Don’t scatter data around SkyDrive

• Follow this pattern:– [SkyDrive root]• Sub folder: ApplicationData

– Sub folder: [Application Name] ([Publisher Name or Company Name])» Files…

Where to store app data in SkyDrive

• Interact with files using HTTP operations:– POST / PUT to upload– GET to download–MOVE / COPY to move or copy without downloading– The SDK wrappers these operations for you:• LiveConnectClient.PostAsync• LiveConnectClient.GetAsync• Etc.

• Permissions– Inherited from parent object up the folder hierarchy

SkyDrive API Core Concepts

• id - prefixed with file or folder– i.e. “file.a6b2a7e8f2515e5e.A6B2A7E8F2515E5E!126”

• name – user supplied display name– i.e. “EpisodeNotes.txt”

• description

• type – file, folder, album, etc.

• source – if a file, the path to download the file– https://....

Useful folder and file properties

• Important types:– LiveConnectSession– LiveConnectClient• Requires a valid session• Required scope:

– wl.skydrive - Read access– wl.skydrive_update – read and write access

– LiveOperationResult• contains a dynamic dictionary containing resultant key/value pairs

Working with SkyDrive API

• Supply the itemId as either an id or one of the few friendly names:• file.a6b2a7e8f2515e5e.A6B2A7E8F2515E5E!126

• /me/skydrive

Retrieving file or folder properties

• Warning: no type safety or compiler checks!

Result properties can be access via dynamic

• Some folders are accessed by Folder ID– Example: folder.a6b2a7e8f2515e5e.A6B2A7E8F2515E5E!

126

• Some folders are accessed by name– /me - details about the signed in user– /me/skydrive – root of your SkyDrive folder– /me/calendars– /me/contacts– /me/events

• List files by obtaining the containing folder id

Understanding folder and file hierarchy

• Imagine we want to download filename.txt:– /me/skydrive/directory1/directory2/filename.txt

• In order to retrieve a list of files and folders contained in directory1 (and we don’t know directory1’s id), we first need to get a list of the folders in /me/skydrive

Download a file: Step 1 : Get folders of “/me/skydrive”

• Once we have the list of files and folders (from /me/skydrive), we can find directory1 and its id property:

– id = folder.96a6fb5ab7b940c6.96A6FB5AB7B940C6!123

Download a file: Step 2 : Get “directory1” from list

• We use the Folder Id to find the folders in directory1, so we can find the id for directory2:

Download a file: Step 3 : Get folders of “directory1”

• We repeat the last few steps and get directory2’s id, – directory2Id =

folder.bb1b4E12b9f9414f.BB1B4E12B9F9414F!231

• We use can get a list of files (and folders) in directory2:

Download a file: Step 5 : Get files of “directory2”

• We can the find the properties for filename.txt and the path we need to download it:

Download a file: Step 6 : Get “file.txt” file url

• Now we have the download path, we need to create a local StorageFile where we will write the downloaded file

Download a file: Step 7 : Create local target

• Use the download path

– Note: uses the background downloader

Download a file: Step 8 : Create local target

1. Get folders of “/me/skydrive”

2. Get “directory1” from list

3. Get folders of “directory1”

4. Get “directory2” from list

5. Get files of “directory2”

6. Get “file.txt” file url

7. Create local target

8. Download to target

Get a file, recap

DEMO

SkyDrive

Windows Live ID SkyDrive

Module Review

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