ios - Background task execution is not working as expected -

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i have requirement make web-service call on tapping actionable buttons remote notification.

on remote notification, have 2 buttons "details" , "fetch". "fetch" background action (activation mode = uiusernotificationactivationmodebackground) , send data out launching app.

on tapping "fetch", made web-service call send details got remote notification.

i have used nsurlsession send data server.

nsurlsessionconfiguration *sessionconfiguration = [nsurlsessionconfiguration backgroundsessionconfigurationwithidentifier:@"com.applewatch.sample"];

self.session = [nsurlsession sessionwithconfiguration:sessionconfiguration delegate:self delegatequeue:nil];

nsurlsessionuploadtask *datatask = [self.session uploadtaskwithrequest:mutableurlrequest fromdata:nil]; [datatask resume];

this works fine when app in active state not in suspended mode. meant here is, once remote notification , if act after 1 hour on notification, service request not going through.

i suspect, service request not going through because app in suspended mode/termination mode.

could me how make service calls in background.

note: have not enabled "background fetch" options in info.plist.

let me know if need enable , implement service calls in uiapplication delegate

application:performfetchwithcompletionhandler:

i'm not being able recall or find again read information before, try using

- uploadtaskwithrequest:fromfile:

i believe it's upload method work in background


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