CODEWITHSUNDEEP
iosapple-push-notifications
user462455
user462455

Reputation: 13608

Size of iPhone device token

What is the size of the device token generated by APNs (Apple Push Notification). I am trying to store device tokens on the server side in a mysql database, and would like to know maximum size of device tokens generated

Upvotes: 21

Views: 36701

Answers (4)

Samo
Samo

Reputation: 2181

Apple Push Notification Service Programming guide very clearly says:

"Important: APNs device tokens are of variable length. Do not hardcode their size."

Upvotes: 19

Philip Whitehouse
Philip Whitehouse

Reputation: 4157

You get told but it's currently 32 bytes. Apple says the token length is variable and to not hard code it

When you get a notification it has a header, currently 35 bytes in size. This is arranged as follows:

  • Byte 1: Command
  • Byte 2-3: Token length
  • Bytes 4-35: Token

Source: http://mark.aufflick.com/files/view/talks/apns.pdf

Upvotes: 21

Cameron Bielstein
Cameron Bielstein

Reputation: 429

According to Apple's iOS Developer Library, it's 32 bytes, as Philip said.

Here's a link to their page on "Local and Push Notification Programming," which may include other helpful information on the subject.

https://developer.apple.com/library/mac/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/Introduction.html

Upvotes: 4

James Hall
James Hall

Reputation: 7

The limit in iOS8 is reported to be 2k. Still half of the size of GCM's 4k, but I suspect most people will have to alter their tables to handle the new iOS8 token limit.

Upvotes: -7

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