i want to know how to send an sms at chosen time using j2me?I know how to send sms but unable to do it at chosen time by user using date field?
Look at the push registry. The push registry lets you launch a MIDlet at a specified time, and that MIDlet can send the SMS.
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I would like to find out how, using Node.js, Express, Typeorm I can send notifications at random times to users to add a post etc.
I would like to create something of the BeReal sort. Notifications should be sent according to the user's selected time zone at random times.
If you want to send automated notifications, I'd recommend using
node-cron. However, for your case, I'd propose to add a timeZone
indicative information in the database to link the user with the
timeZone(you can find it in HTTP Requests, update it after each
login).
For the actual sending of the notifications, I think you should use
some third party service like Google Firebase for mobile
notifications, and web-push for web applications.
After taking the user's permission to send push notifications and saving the userID in firestore, how can I use it to send notifications to them at a time of their choice daily ?
For example :
If the user selects 8:00 AM , I want to be able to send them the push notification everyday at 8 am.
I can't write the code to send the notification in the action itself.
What will I have to setup to accomplish this?
Once the user has granted you permission to send push notifications, you can use the Actions API to send the push notification.
The setup would be as follows.
Storing user preferences
1) Dialogflow agent asks the user when they want to be notified
2) User says they want to be notified at 8:00 am
3) Dialogflow detects the answer and makes a fulfillment request to your webhook (The webhook can be the inline editor in dialogflow (Functions) or another server)
4) In the handler of the intent, you have to store the UserId and the time they selected in your database (in this case, firestore)
5) Dialogflow agent gives the final answer to the user and the interaction ends
Sending the push notification
1) Identify if you have to send a notification to a user; this is the tricky part.
It is not possible to give you a definitive solution on this, because it heavily depends on the requirements of your system and the technologies that you are using/want to use.
Basically, you can use cron jobs, background infinite processes, pub/sub, cloud scheduler, or any other tool that allows you to constantly read information from your database to determine which users need to be notified. I recommend you to check this answer where is discussed an approach to tackle this problem using Firestore.
Notice that you don't necessarily need another server running, you can use the Functions used for the fulfillment.
For example. You can set up Cloud Scheduler to run each hour, and make a request to your Functions. In the request, you read from Firestore and extract the entities that need to be notified that hour.
2) Once you have the users that you want to notificate, you need to use the Actions API to send the push notification. Once again, this request can come from your fulfillment server, or another server used in the system.
Does anyone know how to send an SMS from the xcode application without using the UI?
I mean I want the SMS to be sent internally from the application. I have seen an app that has this feature.
I have alarm system, the alarm only receive SMS nothing else, I need the user to see the alarm name that is easy, but I want the user to choose the alarm name and control it (close, open) and I need to send command by SMS that the issue, the user should not see the alarm number neither the content which is the command text if you can help me that I will pay anyone that can help me with this.
I'm developing on iOS version 4.2.
no there is no way to do it in background , you have to call the GUI unless you create your api that ask for no & send sms from server.
My idea is to make an application start automatically when a message from a specific user reaches the inbox of the mobile . For example if my friend sends some numbers to my mobile, the sms has to be read and validated first and then calculator ( inbuilt mobile application) has to be triggered and process the numbers from the message. Please help me with the above query.
I am far from convinced you will be able to give the phone user access to the same sms you use to launch your MIDlet.
You may need to use native development on the phones that support it if J2ME can't give you exactly what you need.
In any case, you probably want to try with J2ME first so you need to read the specifications for JSR-118 and its PushRegistry API, along with JSR-120, which interfaces with SMS.
Most current J2ME-enabled phones will support static SMS Push but you will need to send the SMS to a particular port, much like you would data over a standard library socket.
I don't think you can trigger on just any old SMS message arriving.
This is the class you want to look at, in any case:
javax.microedition.io.PushRegistry
Can we send SMS programatically by selecting group from the address book using J2me?
yes... it is possible to have access to the users phonebook (if supported on the device(most modern devices do allow it)) via PIM(JSR 75).
And sending SMS's from j2me is also possible(again if the user allows this).
It turns out you can only send a single message to a single recipient at a time using JSR-205.
If you want to send the same message to many recipients, you have to loop around
javax.wireless.messaging.Message.setAddress();
javax.wireless.messaging.MessageConnection.send();
There is no way to add a javax.microedition.pim.ContactList to a Message or to a MessageConnection because there can't be any API dependancy between JSR-205 and JSR-75.
The latest JavaME SDK contains example code that shows how to read contact data in a MIDlet.