May 2019
Intermediate to advanced
504 pages
11h 50m
English
Content preview from Hands-On Mobile Development with .NET Core
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General constraints
The Apple Push Notification Service (APNS) and Firebase Cloud Messaging (FCM) infrastructure both make use of certain manifest declarations that are very specific to the application that's installed on the target device.
APNS mandates that the application ID (and certificate) used to sign the application package have a non-wildcard bundle declaration (that is, the com.mycompany.* type of certificates cannot be used for this implementation).
The device handle (an alphanumeric token or a URL, depending on the platform) is the only piece of device information that is required and used in the notification process. In contrast, the notification service should support multiple applications and platforms.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.