FCM seldom Fails on Android device


FCM seldom Fails on Android device



I've built an application to send instant message via FCM to Android devices by Json WebRequest.



The application works fine but it seldom fail when the application posts to FCM server, and then may continuously fail for a while.



FCM returns the same fail message below but I have no idea what's happening:


{"multicast_id":6888830314994897268,"success":0,"failure":1,"canonical_ids":0,"results":[{"message_id":null}]}



I found this documentation says that:



For Android there is a limit of 100 messages that can be stored
without collapsing. If the limit is reached, all stored messages are
discarded. When the device is back online, it receives a special
message indicating that the limit was reached. The app can then handle
the situation properly, typically by requesting a full sync from the
app server.



But my Android devices do receive all of the messages the server sent when it is powered on.



Is there any thing I missed?



Any help will be appreciated.



Update



I did my FCM push notification code like this example.



Parse returning JSON message by



var response = JsonConvert.DeserializeObject<FcmResponse>(json);


var response = JsonConvert.DeserializeObject<FcmResponse>(json);





but it seldom fail when the application posts to FCM server, and then may continuously fail for a while. It would be awesome if you could provide a Minimal, Complete, and Verifiable example.
– mjwills
2 days ago


but it seldom fail when the application posts to FCM server, and then may continuously fail for a while.





OK, I think I did provide the fail message as example above. The fail messages in my log are always the same. I sent all message with same data structure and the fail message didn't show anything about what's wrong. I haven't saved the log when success. If you would like to see all things while communicate please tell me, I will log all of the things and wait for it failed again.
– Terry Wei
2 days ago










By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Comments

Post a Comment

Popular posts from this blog

paramiko-expect timeout is happening after executing the command

paramiko-expect timeout is happening after executing the command Can someone help me why timeout is happening after executing the command .I am trying to SSH to a machine and execute a command.I want to store the result of the executed command . I have referred paramiko-timeout but i didn't get my expected result. import traceback try: import paramiko except ImportError: raise Exception("Please install paramiko , pip install paramiko") import pexpect from paramiko_expect import SSHClientInteraction def main(): HOSTNAME = "minion5.net" USERNAME = "root" PASSWORD = "help@432" PROMPT = "root@*:~$s+" try: client = paramiko.SSHClient() client.load_system_host_keys() client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) client.connect(hostname=HOSTNAME, username=USERNAME, password=PASSWORD) with SSHClientInteraction(client, timeout=20, display=True) as interact:
Read more

how to run turtle graphics in Colaboratory

how to run turtle graphics in Colaboratory Given that we can do other types of drawing/visualization in Colaboratory, I would think running turtle graphics would be pretty simple (but not so simple I've figured it out!) I can import the turtle library, but I get the following error when any draw command occurs: TclError: no display name and no $DISPLAY environment variable Thanks in advance. 1 Answer 1 I think P5.js is your best bet. I test it in this notebook. https://colab.research.google.com/drive/1TqF6RObllyslad3KrO4SiAuegRjuJDCF By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.
Read more

Export result set on Dbeaver to CSV

Export result set on Dbeaver to CSV Normally I use Dbeaver for windows and always export my result set like this: run my query --> select the result --> export the result set --> select export to clipboard --> done This step by step puts my result set in my clipboard and I can paste it wherever I want to work with it. The problem is that now I am using dbeaver for mac and this guide is not working. I can go on until the moment that I select my result set like in the image below: exporting data set But once I go further in the process, in the last step I get: no query Note that in "source" it was suppose to show the query that originated the result set, but instead it says just "select. As a result it does't select my result or anything (besides being "successful"). Normally my query would show up there automatically and I couldn't find any option that corrects this problem in the menus. Please help me! Thanks. Aft
Read more