More information about specifying a URI

In the context of External Content, a Uniform Resource Identifier (URI) is a string that identifies the pathway to specific content that can appear in a running ViewApp.

All URIs adhere to predefined syntax rules.

• Generic URI syntax consists of a hierarchical sequence of components

  URI = scheme:[//authority]path[?query][#fragment]

  Example

  

• Each URI begins with a scheme name followed by a colon

  Examples of common scheme names include http:, https:, and file:

• An optional authority component preceded by two slashes (//)

  • Use information component consisting of a user name and optional password preceded by a colon followed by an at symbol (@)

    //username:password@

  • Host subcomponent consisting of a registered hostname or IP address

• A path component consisting of a sequence of path segments separated by a slash (/). A path is always defined for a URI, though the defined path may be empty

• An optional query component preceded by a question mark (?), containing a query string of non-hierarchical data.

For more information about the format of a URI, see https://tools.ietf.org/html/rfc3986

The following examples show common URIs that identify External Content within a Galaxy

• ftp://ftp.is.co.za/rfc/rfc1808.txt -- ftp scheme for File Transfer Protocol services

• file:///Z:/Media/Runtime%20Language%20Switching.mp4

• http://www.exampleserver.com/documents/index.html