iOS: Production push notifications, Invalid token from APNS server

Question

My app is now available in the app store, so I\'ve downloaded it to my device. The push notifications were working fine during development. I am using JavaPNS to send out th

Answer 1

MyApp is an iOS app that sends and receives Push Notifications MyApp-to-MyApp using APN token IDs fetched from a database that is kept updated by each MyApp at logon. The Push Notifications are sent by MyApp using the NWPusher framework API.

As long as the project was run in Developer (Debug) mode, sent and received Push Notifications worked perfectly. But, in Production mode, sending Push Notifications would not work.

I went back and completely recreated my AppID, SSL certificates, provisions, etc., but to no avail. Next I used the NWPusher MacOS Pusher app to experiment with sending Push Notifications to MyApp. I configured Pusher to send a Push Notification (to the tokenID of an Ad Hoc distribution of MyApp) with MyApp’s Production SSL certificate, and got the following message in the Pusher log: "Notification error: APN invalid token".

I next noticed that Pusher had a checkbox option “Should use sandbox environment” checked. I unchecked the option and tried it again. This time the Push Notification was sent and then received by the target phone without any errors. This led me to take another look at the NWPusher.connect call:

Swift:

            let pusher:NWPusher? = try? NWPusher.connect(withPKCS12Data: pkcs12! as Data, password:APNS_Certificate_Password,environment:NWEnvironment(rawValue:1)!)

which has an environment argument NWEnvironment enum with possible values 0=none, 1=sandbox, 2=production, 3=auto.

Changing rawValue:1 (develop sandbox) to rawValue:2 (production) fixed the problem: Production Push Notifications now work without errors.