When you see a link or a code snippet that starts with something like itms-services://?action=download-manifest&url=, it's typically used for downloading manifest files directly from a server, usually in the context of iOS or iTunes services. The amp-url part could imply a parameter for specifying an Accelerated Mobile Pages URL.
action=download-manifestThis is a query parameter. It instructs the iOS device specifically to download a manifest file rather than, say, streaming media or checking for updates. The action expects a specially formatted XML file (the manifest) that describes the app to be installed.
For external testers, Apple now offers public TestFlight links. These are cleaner but require testers to have the TestFlight app installed. Itms-services Action Download-manifest Amp-url Https
When you execute action=download-manifest, iOS performs the following steps:
url parameter.https (iOS 9 and later enforce this strictly)..plist (property list) file from that URL..plist for app metadata and the location of the actual .ipa file.Step 1: Upload MyApp.ipa and manifest.plist to https://files.yourcompany.com/ios/ Extract the url parameter
Step 2: Create an HTML file (install.html):
<!DOCTYPE html>
<html>
<head><title>Install Company App</title></head>
<body>
<h1>Internal Distribution</h1>
<p>
<a href="itms-services://?action=download-manifest&url=https://files.yourcompany.com/ios/manifest.plist">
Click here to install the app
</a>
</p>
<p>If the link doesn't work, copy this URL into Safari:</p>
<code>itms-services://?action=download-manifest&url=https://files.yourcompany.com/ios/manifest.plist</code>
</body>
</html>
Step 3: Ensure your web server serves manifest.plist with HTTPS and correct MIME type. Part 9: Complete Working Example
Step 1: Upload MyApp
Step 4: On an iOS device, open https://files.yourcompany.com/ios/install.html in Safari, tap the link.
Result: The "Install" system dialog appears.
During internal development, you can bypass this by using a tool like nginx with a self-signed certificate and installing that certificate on the test device via configuration profile. However, for any public-facing enterprise distribution, a trusted CA is mandatory.