How to Send a WhatsApp API using VBNET

Contents hide

1 Introduction

2 Send template using WhatsApp API with VBNET

3 Send a text message using WhatsApp API with VBNET

Introduction

In this code snippet, you learn how to send a WhatsApp API using VBNET, to send a text message, WhatsApp Templates, media, interactive buttons, lists, products … etc, Alvochat account is required to run the following codes. Create an Account if you don’t have one.

Send template using WhatsApp API with VBNET

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/template")
        Dim postdata As String = "token=YourToken&to=16315555555&name=hello_world&language=en_us&header=&body=&buttons=&priority="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send a text message using WhatsApp API with VBNET

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/chat")
        Dim postdata As String = "token=YourToken&to=16315555555&body=WhatsApp API on alvochat.com works good&priority=&preview_url=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send image

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/image")
        Dim postdata As String = "token=YourToken&to=16315555555&image=https://alvochat-example.s3-accelerate.amazonaws.com/image/1.jpeg&caption=image caption&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send audio

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/audio")
        Dim postdata As String = "token=YourToken&to=16315555555&audio=https://alvochat-example.s3-accelerate.amazonaws.com/audio/1.mp3&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send video

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/video")
        Dim postdata As String = "token=YourToken&to=16315555555&video=https://alvochat-example.s3-accelerate.amazonaws.com/video/1.mp4&caption=video caption&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send document

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/document")
        Dim postdata As String = "token=YourToken&to=16315555555&document=https://alvochat-example.s3-accelerate.amazonaws.com/document/1.pdf&filename=&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send sticker

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/sticker")
        Dim postdata As String = "token=YourToken&to=16315555555&sticker=https://alvochat-example.s3-accelerate.amazonaws.com/sticker/1.webp&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send Contact

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/contact")
        Dim postdata As String = "token=YourToken&to=16315555555&contact=&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send Location

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/location")
        Dim postdata As String = "token=YourToken&to=16315555555&lat=37.484296&lng=-122.148703&address=Menlo Park, California, United States&name=Meta Headquarters&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send list

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/list")
        Dim postdata As String = "token=YourToken&to=16315555555&header=header&body= please select one of the following options&footer=footer&button=options§ions=option_1,option_2,option_3&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send button

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/button")
        Dim postdata As String = "token=YourToken&to=16315555555&header=header&body= please select one of the following options&footer=footer&buttons=option_1,option_2,option_3&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

Send products

Imports System.Net
Imports System.Text

Module example
    Sub Main()  
        Dim WebRequest As HttpWebRequest
        WebRequest = HttpWebRequest.Create("https://api.alvochat.com/instance1199/messages/product")
        Dim postdata As String = "token=YourToken&to=16315555555&header=header&body=Hi , check out our new products&footer=footer&catalog_id=&product=&priority=&message_id="
        Dim enc As UTF8Encoding = New System.Text.UTF8Encoding()
        Dim postdatabytes As Byte()  = enc.GetBytes(postdata)
        WebRequest.Method = "POST"
        WebRequest.ContentType = "application/x-www-form-urlencoded"
        WebRequest.GetRequestStream().Write(postdatabytes)
       'WebRequest.GetRequestStream().Write(postdatabytes, 0, postdatabytes.Length) 
        Dim ret As New System.IO.StreamReader(WebRequest.GetResponse().GetResponseStream())
        console.writeline(ret.ReadToEnd())
    End Sub  
  
End Module

You can see the Full Whatsapp API Documentation here.