Firebase FCM silent push notifications for iOS












9















I have a problem with silent notifications on iOS.



When my application is in background, I don't receive silent notification sent by FCM. But if I try to send directly to APNS, the notification is successfully received.



This is the JSON sent to FCM:



{ 
"to" : "<token>",
"priority": "high",
"content_available": true,
"data" : {
"<key>" : "<string>",
"<key2>" : "<string>"
}


}



This is the JSON sent directly to APNS:



{
"aps": {
"content-available": 1
},
"<key>": "<string>",
"<key>": "<string>"
}


I have already tried to remove the "priority" key because I saw someone saying that I shouldn't set the priority if the "content_available" is already set. It didn't work.




  1. I have "Push Notifications" enabled in XCode > Capabilities.

  2. I have "Remote notifications" checked in Background Modes in XCode > Capabilities.

  3. The FCM notifications are working fine when app is in foreground and sometimes when the app is in background.










share|improve this question





























    9















    I have a problem with silent notifications on iOS.



    When my application is in background, I don't receive silent notification sent by FCM. But if I try to send directly to APNS, the notification is successfully received.



    This is the JSON sent to FCM:



    { 
    "to" : "<token>",
    "priority": "high",
    "content_available": true,
    "data" : {
    "<key>" : "<string>",
    "<key2>" : "<string>"
    }


    }



    This is the JSON sent directly to APNS:



    {
    "aps": {
    "content-available": 1
    },
    "<key>": "<string>",
    "<key>": "<string>"
    }


    I have already tried to remove the "priority" key because I saw someone saying that I shouldn't set the priority if the "content_available" is already set. It didn't work.




    1. I have "Push Notifications" enabled in XCode > Capabilities.

    2. I have "Remote notifications" checked in Background Modes in XCode > Capabilities.

    3. The FCM notifications are working fine when app is in foreground and sometimes when the app is in background.










    share|improve this question



























      9












      9








      9


      5






      I have a problem with silent notifications on iOS.



      When my application is in background, I don't receive silent notification sent by FCM. But if I try to send directly to APNS, the notification is successfully received.



      This is the JSON sent to FCM:



      { 
      "to" : "<token>",
      "priority": "high",
      "content_available": true,
      "data" : {
      "<key>" : "<string>",
      "<key2>" : "<string>"
      }


      }



      This is the JSON sent directly to APNS:



      {
      "aps": {
      "content-available": 1
      },
      "<key>": "<string>",
      "<key>": "<string>"
      }


      I have already tried to remove the "priority" key because I saw someone saying that I shouldn't set the priority if the "content_available" is already set. It didn't work.




      1. I have "Push Notifications" enabled in XCode > Capabilities.

      2. I have "Remote notifications" checked in Background Modes in XCode > Capabilities.

      3. The FCM notifications are working fine when app is in foreground and sometimes when the app is in background.










      share|improve this question
















      I have a problem with silent notifications on iOS.



      When my application is in background, I don't receive silent notification sent by FCM. But if I try to send directly to APNS, the notification is successfully received.



      This is the JSON sent to FCM:



      { 
      "to" : "<token>",
      "priority": "high",
      "content_available": true,
      "data" : {
      "<key>" : "<string>",
      "<key2>" : "<string>"
      }


      }



      This is the JSON sent directly to APNS:



      {
      "aps": {
      "content-available": 1
      },
      "<key>": "<string>",
      "<key>": "<string>"
      }


      I have already tried to remove the "priority" key because I saw someone saying that I shouldn't set the priority if the "content_available" is already set. It didn't work.




      1. I have "Push Notifications" enabled in XCode > Capabilities.

      2. I have "Remote notifications" checked in Background Modes in XCode > Capabilities.

      3. The FCM notifications are working fine when app is in foreground and sometimes when the app is in background.







      ios firebase notifications apple-push-notifications firebase-cloud-messaging






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 25 '16 at 15:33









      Frank van Puffelen

      238k29382408




      238k29382408










      asked Nov 25 '16 at 14:42









      vladiulianbogdanvladiulianbogdan

      1,4631513




      1,4631513
























          4 Answers
          4






          active

          oldest

          votes


















          13














          Remove "notification" key value pair and add "content_available": true



          It will look like this



          { 
          "to" : "...",
          "priority": "high",
          "content_available": true,
          "data" : {
          ....
          }
          }


          This should make it a silent APNS and you need to handle with corresponding APNS delegate method.



          You will need to handle this through delegates
          Refer this firebase documentation for details: https://firebase.google.com/docs/cloud-messaging/concept-options






          share|improve this answer































            2














            I found an workaround. I put an empty value for "sound" in "notification" field and the silent notifications are delivered even when the application is in background.



            { 
            "to" : "...",
            "priority": "high",
            "notification": {
            "sound": ""
            },
            "data" : {
            ....
            }
            }


            My hunch is that Apple does not allow silent notifications with a 'high' priority and somehow "notification": {"sound": ""} tricks the APNS that this notification is not a silent one.






            share|improve this answer



















            • 3





              Right after you set the notification object, it becomes a normal push notification. It's not a silent push notification at al.

              – Dinesh Raja
              Dec 23 '16 at 10:26











            • what to do to send the silent notification through FCM message console ?

              – Moxarth
              Dec 11 '17 at 13:02



















            1














            I was working on Firebase silent push notification using nodejs. When I tried below code its was working fine. When I was adding "priority": "high" and "content_available": true it was giving below error.




            Worked below code




            const admin = require('firebase-admin');
            const serviceAccount ="...."; //service account path
            admin.initializeApp({
            credential: admin.credential.cert(serviceAccount)
            });

            let  fcmToken = "...."; // Your token
            let message ={
            "token": fcmToken,
            "data": {
            "updateApi": "activity"
            }
            }

            admin.messaging().send(message)
            .then((response) =>{
            console.log('Successfully sent notification:', response);
            })
            .catch((error) =>{
            console.log('Error while sending notification:', error);
            });



            Error when I added the priority and content_available in message object




            { code: 'messaging/invalid-argument',
            message: 'Invalid JSON payload received. Unknown name "priority" at 'message': Cannot find field.nInvalid JSON payload received. Unknown name "content_available" at 'message': Cannot find field.' },
            codePrefix: 'messaging' }





            share|improve this answer
























            • HAve you solved this?

              – Shubham1164
              Feb 1 at 18:10






            • 1





              Yes, Just don't pass priority and content_available in above message object

              – Priy Ranjan
              Feb 5 at 10:03











            • Then how to control the values of these. Where I can change priority and content_available values?

              – Shubham1164
              Feb 5 at 10:09



















            -2














            Please follow the documentation for server side and make setup for json as explained over the document. I have faced similiar problem earlier and solved the issue going this doc.



                {
            "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
            "priority" : "high",
            "notification" : {
            "body" : "This week's edition is now available.",
            "title" : "NewsMagazine.com",
            "icon" : "new"
            },
            "data" : {
            "volume" : "3.21.15",
            "contents" : "http://www.news-magazine.com/world-week/21659772"
            }
            }


            you were missing notification key. which is used by apns to get notification on background.






            share|improve this answer



















            • 5





              But I don't want the user to receive a notification in the Notification Center. I just want a silent notification that will execute some code in the "didReceiveRemoteNotification". That's what "silent notification" means.

              – vladiulianbogdan
              Nov 25 '16 at 15:18











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            4 Answers
            4






            active

            oldest

            votes








            4 Answers
            4






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            13














            Remove "notification" key value pair and add "content_available": true



            It will look like this



            { 
            "to" : "...",
            "priority": "high",
            "content_available": true,
            "data" : {
            ....
            }
            }


            This should make it a silent APNS and you need to handle with corresponding APNS delegate method.



            You will need to handle this through delegates
            Refer this firebase documentation for details: https://firebase.google.com/docs/cloud-messaging/concept-options






            share|improve this answer




























              13














              Remove "notification" key value pair and add "content_available": true



              It will look like this



              { 
              "to" : "...",
              "priority": "high",
              "content_available": true,
              "data" : {
              ....
              }
              }


              This should make it a silent APNS and you need to handle with corresponding APNS delegate method.



              You will need to handle this through delegates
              Refer this firebase documentation for details: https://firebase.google.com/docs/cloud-messaging/concept-options






              share|improve this answer


























                13












                13








                13







                Remove "notification" key value pair and add "content_available": true



                It will look like this



                { 
                "to" : "...",
                "priority": "high",
                "content_available": true,
                "data" : {
                ....
                }
                }


                This should make it a silent APNS and you need to handle with corresponding APNS delegate method.



                You will need to handle this through delegates
                Refer this firebase documentation for details: https://firebase.google.com/docs/cloud-messaging/concept-options






                share|improve this answer













                Remove "notification" key value pair and add "content_available": true



                It will look like this



                { 
                "to" : "...",
                "priority": "high",
                "content_available": true,
                "data" : {
                ....
                }
                }


                This should make it a silent APNS and you need to handle with corresponding APNS delegate method.



                You will need to handle this through delegates
                Refer this firebase documentation for details: https://firebase.google.com/docs/cloud-messaging/concept-options







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Mar 20 '17 at 11:16









                Alap AneraoAlap Anerao

                1,4801223




                1,4801223

























                    2














                    I found an workaround. I put an empty value for "sound" in "notification" field and the silent notifications are delivered even when the application is in background.



                    { 
                    "to" : "...",
                    "priority": "high",
                    "notification": {
                    "sound": ""
                    },
                    "data" : {
                    ....
                    }
                    }


                    My hunch is that Apple does not allow silent notifications with a 'high' priority and somehow "notification": {"sound": ""} tricks the APNS that this notification is not a silent one.






                    share|improve this answer



















                    • 3





                      Right after you set the notification object, it becomes a normal push notification. It's not a silent push notification at al.

                      – Dinesh Raja
                      Dec 23 '16 at 10:26











                    • what to do to send the silent notification through FCM message console ?

                      – Moxarth
                      Dec 11 '17 at 13:02
















                    2














                    I found an workaround. I put an empty value for "sound" in "notification" field and the silent notifications are delivered even when the application is in background.



                    { 
                    "to" : "...",
                    "priority": "high",
                    "notification": {
                    "sound": ""
                    },
                    "data" : {
                    ....
                    }
                    }


                    My hunch is that Apple does not allow silent notifications with a 'high' priority and somehow "notification": {"sound": ""} tricks the APNS that this notification is not a silent one.






                    share|improve this answer



















                    • 3





                      Right after you set the notification object, it becomes a normal push notification. It's not a silent push notification at al.

                      – Dinesh Raja
                      Dec 23 '16 at 10:26











                    • what to do to send the silent notification through FCM message console ?

                      – Moxarth
                      Dec 11 '17 at 13:02














                    2












                    2








                    2







                    I found an workaround. I put an empty value for "sound" in "notification" field and the silent notifications are delivered even when the application is in background.



                    { 
                    "to" : "...",
                    "priority": "high",
                    "notification": {
                    "sound": ""
                    },
                    "data" : {
                    ....
                    }
                    }


                    My hunch is that Apple does not allow silent notifications with a 'high' priority and somehow "notification": {"sound": ""} tricks the APNS that this notification is not a silent one.






                    share|improve this answer













                    I found an workaround. I put an empty value for "sound" in "notification" field and the silent notifications are delivered even when the application is in background.



                    { 
                    "to" : "...",
                    "priority": "high",
                    "notification": {
                    "sound": ""
                    },
                    "data" : {
                    ....
                    }
                    }


                    My hunch is that Apple does not allow silent notifications with a 'high' priority and somehow "notification": {"sound": ""} tricks the APNS that this notification is not a silent one.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Dec 15 '16 at 10:42









                    vladiulianbogdanvladiulianbogdan

                    1,4631513




                    1,4631513








                    • 3





                      Right after you set the notification object, it becomes a normal push notification. It's not a silent push notification at al.

                      – Dinesh Raja
                      Dec 23 '16 at 10:26











                    • what to do to send the silent notification through FCM message console ?

                      – Moxarth
                      Dec 11 '17 at 13:02














                    • 3





                      Right after you set the notification object, it becomes a normal push notification. It's not a silent push notification at al.

                      – Dinesh Raja
                      Dec 23 '16 at 10:26











                    • what to do to send the silent notification through FCM message console ?

                      – Moxarth
                      Dec 11 '17 at 13:02








                    3




                    3





                    Right after you set the notification object, it becomes a normal push notification. It's not a silent push notification at al.

                    – Dinesh Raja
                    Dec 23 '16 at 10:26





                    Right after you set the notification object, it becomes a normal push notification. It's not a silent push notification at al.

                    – Dinesh Raja
                    Dec 23 '16 at 10:26













                    what to do to send the silent notification through FCM message console ?

                    – Moxarth
                    Dec 11 '17 at 13:02





                    what to do to send the silent notification through FCM message console ?

                    – Moxarth
                    Dec 11 '17 at 13:02











                    1














                    I was working on Firebase silent push notification using nodejs. When I tried below code its was working fine. When I was adding "priority": "high" and "content_available": true it was giving below error.




                    Worked below code




                    const admin = require('firebase-admin');
                    const serviceAccount ="...."; //service account path
                    admin.initializeApp({
                    credential: admin.credential.cert(serviceAccount)
                    });

                    let  fcmToken = "...."; // Your token
                    let message ={
                    "token": fcmToken,
                    "data": {
                    "updateApi": "activity"
                    }
                    }

                    admin.messaging().send(message)
                    .then((response) =>{
                    console.log('Successfully sent notification:', response);
                    })
                    .catch((error) =>{
                    console.log('Error while sending notification:', error);
                    });



                    Error when I added the priority and content_available in message object




                    { code: 'messaging/invalid-argument',
                    message: 'Invalid JSON payload received. Unknown name "priority" at 'message': Cannot find field.nInvalid JSON payload received. Unknown name "content_available" at 'message': Cannot find field.' },
                    codePrefix: 'messaging' }





                    share|improve this answer
























                    • HAve you solved this?

                      – Shubham1164
                      Feb 1 at 18:10






                    • 1





                      Yes, Just don't pass priority and content_available in above message object

                      – Priy Ranjan
                      Feb 5 at 10:03











                    • Then how to control the values of these. Where I can change priority and content_available values?

                      – Shubham1164
                      Feb 5 at 10:09
















                    1














                    I was working on Firebase silent push notification using nodejs. When I tried below code its was working fine. When I was adding "priority": "high" and "content_available": true it was giving below error.




                    Worked below code




                    const admin = require('firebase-admin');
                    const serviceAccount ="...."; //service account path
                    admin.initializeApp({
                    credential: admin.credential.cert(serviceAccount)
                    });

                    let  fcmToken = "...."; // Your token
                    let message ={
                    "token": fcmToken,
                    "data": {
                    "updateApi": "activity"
                    }
                    }

                    admin.messaging().send(message)
                    .then((response) =>{
                    console.log('Successfully sent notification:', response);
                    })
                    .catch((error) =>{
                    console.log('Error while sending notification:', error);
                    });



                    Error when I added the priority and content_available in message object




                    { code: 'messaging/invalid-argument',
                    message: 'Invalid JSON payload received. Unknown name "priority" at 'message': Cannot find field.nInvalid JSON payload received. Unknown name "content_available" at 'message': Cannot find field.' },
                    codePrefix: 'messaging' }





                    share|improve this answer
























                    • HAve you solved this?

                      – Shubham1164
                      Feb 1 at 18:10






                    • 1





                      Yes, Just don't pass priority and content_available in above message object

                      – Priy Ranjan
                      Feb 5 at 10:03











                    • Then how to control the values of these. Where I can change priority and content_available values?

                      – Shubham1164
                      Feb 5 at 10:09














                    1












                    1








                    1







                    I was working on Firebase silent push notification using nodejs. When I tried below code its was working fine. When I was adding "priority": "high" and "content_available": true it was giving below error.




                    Worked below code




                    const admin = require('firebase-admin');
                    const serviceAccount ="...."; //service account path
                    admin.initializeApp({
                    credential: admin.credential.cert(serviceAccount)
                    });

                    let  fcmToken = "...."; // Your token
                    let message ={
                    "token": fcmToken,
                    "data": {
                    "updateApi": "activity"
                    }
                    }

                    admin.messaging().send(message)
                    .then((response) =>{
                    console.log('Successfully sent notification:', response);
                    })
                    .catch((error) =>{
                    console.log('Error while sending notification:', error);
                    });



                    Error when I added the priority and content_available in message object




                    { code: 'messaging/invalid-argument',
                    message: 'Invalid JSON payload received. Unknown name "priority" at 'message': Cannot find field.nInvalid JSON payload received. Unknown name "content_available" at 'message': Cannot find field.' },
                    codePrefix: 'messaging' }





                    share|improve this answer













                    I was working on Firebase silent push notification using nodejs. When I tried below code its was working fine. When I was adding "priority": "high" and "content_available": true it was giving below error.




                    Worked below code




                    const admin = require('firebase-admin');
                    const serviceAccount ="...."; //service account path
                    admin.initializeApp({
                    credential: admin.credential.cert(serviceAccount)
                    });

                    let  fcmToken = "...."; // Your token
                    let message ={
                    "token": fcmToken,
                    "data": {
                    "updateApi": "activity"
                    }
                    }

                    admin.messaging().send(message)
                    .then((response) =>{
                    console.log('Successfully sent notification:', response);
                    })
                    .catch((error) =>{
                    console.log('Error while sending notification:', error);
                    });



                    Error when I added the priority and content_available in message object




                    { code: 'messaging/invalid-argument',
                    message: 'Invalid JSON payload received. Unknown name "priority" at 'message': Cannot find field.nInvalid JSON payload received. Unknown name "content_available" at 'message': Cannot find field.' },
                    codePrefix: 'messaging' }






                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Nov 22 '18 at 6:45









                    Priy RanjanPriy Ranjan

                    5617




                    5617













                    • HAve you solved this?

                      – Shubham1164
                      Feb 1 at 18:10






                    • 1





                      Yes, Just don't pass priority and content_available in above message object

                      – Priy Ranjan
                      Feb 5 at 10:03











                    • Then how to control the values of these. Where I can change priority and content_available values?

                      – Shubham1164
                      Feb 5 at 10:09



















                    • HAve you solved this?

                      – Shubham1164
                      Feb 1 at 18:10






                    • 1





                      Yes, Just don't pass priority and content_available in above message object

                      – Priy Ranjan
                      Feb 5 at 10:03











                    • Then how to control the values of these. Where I can change priority and content_available values?

                      – Shubham1164
                      Feb 5 at 10:09

















                    HAve you solved this?

                    – Shubham1164
                    Feb 1 at 18:10





                    HAve you solved this?

                    – Shubham1164
                    Feb 1 at 18:10




                    1




                    1





                    Yes, Just don't pass priority and content_available in above message object

                    – Priy Ranjan
                    Feb 5 at 10:03





                    Yes, Just don't pass priority and content_available in above message object

                    – Priy Ranjan
                    Feb 5 at 10:03













                    Then how to control the values of these. Where I can change priority and content_available values?

                    – Shubham1164
                    Feb 5 at 10:09





                    Then how to control the values of these. Where I can change priority and content_available values?

                    – Shubham1164
                    Feb 5 at 10:09











                    -2














                    Please follow the documentation for server side and make setup for json as explained over the document. I have faced similiar problem earlier and solved the issue going this doc.



                        {
                    "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
                    "priority" : "high",
                    "notification" : {
                    "body" : "This week's edition is now available.",
                    "title" : "NewsMagazine.com",
                    "icon" : "new"
                    },
                    "data" : {
                    "volume" : "3.21.15",
                    "contents" : "http://www.news-magazine.com/world-week/21659772"
                    }
                    }


                    you were missing notification key. which is used by apns to get notification on background.






                    share|improve this answer



















                    • 5





                      But I don't want the user to receive a notification in the Notification Center. I just want a silent notification that will execute some code in the "didReceiveRemoteNotification". That's what "silent notification" means.

                      – vladiulianbogdan
                      Nov 25 '16 at 15:18
















                    -2














                    Please follow the documentation for server side and make setup for json as explained over the document. I have faced similiar problem earlier and solved the issue going this doc.



                        {
                    "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
                    "priority" : "high",
                    "notification" : {
                    "body" : "This week's edition is now available.",
                    "title" : "NewsMagazine.com",
                    "icon" : "new"
                    },
                    "data" : {
                    "volume" : "3.21.15",
                    "contents" : "http://www.news-magazine.com/world-week/21659772"
                    }
                    }


                    you were missing notification key. which is used by apns to get notification on background.






                    share|improve this answer



















                    • 5





                      But I don't want the user to receive a notification in the Notification Center. I just want a silent notification that will execute some code in the "didReceiveRemoteNotification". That's what "silent notification" means.

                      – vladiulianbogdan
                      Nov 25 '16 at 15:18














                    -2












                    -2








                    -2







                    Please follow the documentation for server side and make setup for json as explained over the document. I have faced similiar problem earlier and solved the issue going this doc.



                        {
                    "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
                    "priority" : "high",
                    "notification" : {
                    "body" : "This week's edition is now available.",
                    "title" : "NewsMagazine.com",
                    "icon" : "new"
                    },
                    "data" : {
                    "volume" : "3.21.15",
                    "contents" : "http://www.news-magazine.com/world-week/21659772"
                    }
                    }


                    you were missing notification key. which is used by apns to get notification on background.






                    share|improve this answer













                    Please follow the documentation for server side and make setup for json as explained over the document. I have faced similiar problem earlier and solved the issue going this doc.



                        {
                    "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
                    "priority" : "high",
                    "notification" : {
                    "body" : "This week's edition is now available.",
                    "title" : "NewsMagazine.com",
                    "icon" : "new"
                    },
                    "data" : {
                    "volume" : "3.21.15",
                    "contents" : "http://www.news-magazine.com/world-week/21659772"
                    }
                    }


                    you were missing notification key. which is used by apns to get notification on background.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Nov 25 '16 at 15:00









                    rjndrarjndra

                    889




                    889








                    • 5





                      But I don't want the user to receive a notification in the Notification Center. I just want a silent notification that will execute some code in the "didReceiveRemoteNotification". That's what "silent notification" means.

                      – vladiulianbogdan
                      Nov 25 '16 at 15:18














                    • 5





                      But I don't want the user to receive a notification in the Notification Center. I just want a silent notification that will execute some code in the "didReceiveRemoteNotification". That's what "silent notification" means.

                      – vladiulianbogdan
                      Nov 25 '16 at 15:18








                    5




                    5





                    But I don't want the user to receive a notification in the Notification Center. I just want a silent notification that will execute some code in the "didReceiveRemoteNotification". That's what "silent notification" means.

                    – vladiulianbogdan
                    Nov 25 '16 at 15:18





                    But I don't want the user to receive a notification in the Notification Center. I just want a silent notification that will execute some code in the "didReceiveRemoteNotification". That's what "silent notification" means.

                    – vladiulianbogdan
                    Nov 25 '16 at 15:18


















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