Android Question Send more than one WhatsApp message

AlpVir · Jun 15, 2024

How to send the same WhatsApp message to 3 or 4 different contacts registered in a SQLite archive?
The following code sends only one message and forgets the others.
[CODE lang="b4x" ]
TxtWA="Lorem ipsum dolor sit amet, consectetur adipisci elit, sed do eiusmod"
rs=db.ExecQuery ("SELECT * FROM ....")
For i=0 To rs.RowCount-1
rs.Position=i
Dim Intent1 As Intent
Intent1.Initialize(Intent1.ACTION_VIEW, "https://api.whatsapp.com/send?phone=" & rs.GetString("Telefono") & "&text=" & TxtWA )
Intent1.SetComponent("android/com.android.internal.app.ResolverActivity")
StartActivity(Intent1)
Next
rs.close[/CODE]

Alexander Stolte · Jun 15, 2024

It's not possible. You can only send one message to one contact per api call. You have to wait until the user is back in the app to send the next message to whatsapp

AlpVir · Jun 15, 2024

It is a pity.
According to what you say it should be possible:
1) set the parameters for the first call
2) enter WhatsApp
3) press the WhatApp send button
4) exit WhatsApp (important)
5) set the parameters for the second call
6) enter into WhatsApp again
7) press the WhatApp send button
8) etc. etc.
I would also be willing to adopt such a solution, however cumbersome.
In fact, I'm surprised that the code I posted doesn't already do what I described.

Mariano Ismael Castro · Jun 15, 2024

GREEN API: send and receive WhatsApp messages

GREEN API: WhatsApp API on any language PHP, JavaScript, 1C, Python, Java, C#, VBA etc.

green-api.com

You can take a look at that API, use WhatsApp Web to send messages and other things.

[B4X] GreenApi - WhatsApp API

Green API is a platform that allows you to send and receive WhatsApp messages through a stable API. 1. It is possible to send and receive text, photos and videos without the need to purchase and monitor a phone 2. Stable WhatsApp API works without a phone and your number is safe when using...

www.b4x.com

You can use my library, as for the demo project I am updating it

AlpVir · Jun 15, 2024

I downloaded the suggested library but it doesn't seem to be right for me as it seems intended to send a message to only one contact.
As a further difficulty I add that my app does not use B4X Pages.
Could you check if it is really possible to achieve what you want using the library in question ?

Mariano Ismael Castro · Jun 15, 2024

AlpVir said:
I downloaded the suggested library but it doesn't seem to be right for me as it seems intended to send a message to only one contact.
As a further difficulty I add that my app does not use B4X Pages.
Could you check if it is really possible to achieve what you want using the library in question ?

I'm going to prepare a basic example and share it with you.

AlpVir · Jun 15, 2024

Thank you.
Something very very simple.
A text ("Lorem ipsum etc. etc")
Two phone numbers
One button
Maximum delay in shipping 1 or 2 minutes
No B4X Pages

Mariano Ismael Castro · Jun 15, 2024

AlpVir said:
A text ("Lorem ipsum etc. etc")
Two phone numbers
One button

Don't forget to replace the keys

It can work on B4XPages and non-B4XPages projects.
This example works in B4J and B4A

AlpVir · Jun 15, 2024

Unknown type: countinginputstream Missing a library reference?

AlpVir · Jun 15, 2024

My app does not use B4X Pages !!!
The app in question is "SONO QUI" (I am here)

Mariano Ismael Castro · Jun 15, 2024

This example is not B4XPage

AlpVir · Jun 15, 2024

greenApi.Initialize(Me, "GreenApi", myIdInstance,myApiTokenInstance , xui.DefaultFolder)
?
Main - 34: Too many parameters.

Mariano Ismael Castro · Jun 15, 2024

AlpVir said:
greenApi.Initialize(Me, "GreenApi", myIdInstance,myApiTokenInstance , xui.DefaultFolder)
?
Main - 34: Too many parameters.

You do not have the correct version of the library

AlpVir · Jun 15, 2024

It appears to me that there is only one version of the library, the "1".
It also turns out that you have to call that library with

greenApi.Initialize(Me,"GreenApi",myIdInstance,myApiTokenInstance)

and not with

greenApi.Initialize(Me, "GreenApi", myIdInstance,myApiTokenInstance , xui.DefaultFolder)

Having said this, it seems to me that the library is not for me because, if I have understood correctly, it requires that each user of the app in which this library is implemented must register their WhatsApp number. And this would be too complicated for users of my app.
In any case I tried your code and the result is negative.
This is the log

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create (first time) **
** Activity (main) Resume **
*** Receiver (httputils2service) Receive (first time) ***
ResponseError. Reason: Forbidden, Response: <html>
<head><title>403 Forbidden</title></head>
<body bgcolor="white">
<center><h1>403 Forbidden</h1></center>
<hr><center>nginx/1.14.0 (Ubuntu)</center>
</body>
</html>
Message ID
false
** Activity (main) Pause, UserClosed = true **

The only changes to your code were

greenApi.Initialize(Me,"GreenApi",myIdInstance,myApiTokenInstance)

And

For Each WhatsAppNumber As String In Array("+39348xxxxxxx")

My app is "SONO QUI" but I don't know if it is available outside of Italy.
You simply have to send a certain text to 3 or 4 (no more) WhatsApp contacts within a few minutes.
Thanks for your patience

Mariano Ismael Castro · Jun 15, 2024

AlpVir said:
Having said this, it seems to me that the library is not for me because, if I have understood correctly, it requires that each user of the app in which this library is implemented must register

True, that's how it is

This is bad ~~+39348xxxxxxx,~~ The correct is 39348xxxxxxx

AlpVir · Jun 16, 2024

Okay. Having established that the Green Api library isn't right for me, is there any other solution?
Thanks anyway for the support.

Android Question Send more than one WhatsApp message

AlpVir

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