Provider-hosted apps allow components to work across domains despite firewalls. They can access SharePoint Online and on-premises farms, and use tokens for dual authorization. A cross-domain library enables remote script to access SharePoint without tokens. Tools for building cross-domain apps include Visual Studio, LightSwitch, JavaScript, and SharePoint APIs. They can store data in SharePoint lists, libraries, remote databases, files, and blob storage.

1. APPS FOR SHAREPOINT
PROVIDER-HOSTED APPS – CROSS DOMAIN LIBRARY
ESPECIALLY GOOD WHEN THE APP HAS OFF-PREMISES COMPONENTS THAT MUST WORK AROUND
A CORPORATE FIREWALL
Cross-domain apps can be installed to both SharePoint Online and on-premises SharePoint farms. Can be sold
in the Office Store. Can also use tokens with the ACS or High-Trust systems for an app with a dual authorization
system. Requires an active browser and user session.
AUTHORIZATION TO SHAREPOINT
JavaScript library that enables script on a remote page to access SharePoint without an access token.
SHAREPOINT
Cross-domain Library
REMOTE
COMPONENTS
SharePoint components like lists, document
libraries, and workflows
JavaScript that creates,
reads, updates, or deletes
SharePoint data or objects.
SHAREPOINT ONLINE
TOOLS, TASKS AND DATA
MAKE CROSS-DOMAIN APPS FOR SHAREPOINT WITH THESE TOOLS
▪ Visual Studio
▪ LightSwitch
DEPLOYMENT TASKS FOR CROSS-DOMAIN APPS
▪ Provider must deploy its remote components
before publishing the app and must isolate
the tenant.
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PROGRAMMING LANGUAGES & SHAREPOINT APIs
▪ JavaScript
▪ SharePoint REST APIs on any platform
▪ SharePoint JavaScript APIs on SharePoint pages
CROSS-DOMAIN APPS FOR SHAREPOINT CAN STORE DATA IN
▪ SharePoint lists
▪ SharePoint document libraries
http://dev.office.com
▪ Remote databases
▪ SharePoint files
▪ Blob storage
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