File Metadata Attributes
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Overview
You can define metadata attributes for each file that you host with Atlas App Services. Metadata attributes map to standard HTTP headers and allow you to optionally configure how App Services serves your files as well as how clients that request resources should handle them. This page provides examples and describes the purpose of each available attribute.
Content-Type
The Content-Type file attribute indicates the media type of the file.
Note
If you do not specify a Content-Type attribute for a file, App Services
will attempt to automatically add a Content-Type attribute to it
based on the file extension.
For example, App Services would automatically add the attribute
Content-Type: application/html to the file myPage.html.
Examples
Indicate that a File Contains HTML
Content-Type: application/html
Content-Disposition
The Content-Disposition file attribute indicates to client applications (such as your web browser) whether the file should be downloaded as an attachment or displayed inline as a web page.
Examples
Display the File Inline
Content-Disposition: inline
Download the File
Content-Disposition: attachment
Download the File with a Custom Filename
Content-Disposition: attachment; filename="myFile.txt"
Content-Encoding
The Content-Encoding file attribute indicates any encodings that were applied to the file. Client applications can use this header to determine how to properly decode the file.
Examples
Indicate No Encoding
Content-Encoding: identity
Indicate GZIP Encoding
Content-Encoding: gzip
Indicate Multiple Encodings in Application Order
Content-Encoding: gzip, identity
Content-Language
The Content-Language file attribute optionally specifies the language used by the file's intended target audience. This attribute does not necessarily represent the language that file is actually written in.
Examples
Specify a Single Language
Content-Language: en-US
Specify Multiple Languages
Content-Language: en-US, en-CA, en-UK
Cache-Control
The Cache-Control file attribute instructs CDN servers on how they should handle cached copies of the file.
Examples
Refresh a Cached File Every Five Minutes
Cache-Control: max-age=300
Never Cache a File
Cache-Control: no-cache
Website-Redirect-Location
The Website-Redirect-Location file redirects requests to the
specified destination.
Examples
Redirect Requests to a Different File
Website-Redirect-Location: https://example.com/file/redirectedFile.txt