VB.NET

WhatsApp Cloud API Send Message

See more WhatsApp Examples

Demonstrates how to send a message using the WhatsApp Cloud API (Business App) VB.NET

Dim success As Boolean = False

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim http As New Chilkat.Http

' The following JSON is sent in the request body.

' {
'   "messaging_product": "whatsapp",
'   "to": "16302581871",
'   "type": "template",
'   "template": {
'     "name": "hello_world",
'     "language": {
'       "code": "en_US"
'     }
'   }
' }

Dim json As New Chilkat.JsonObject
json.UpdateString("messaging_product","whatsapp")
json.UpdateString("to","15555555555")
json.UpdateString("type","template")
json.UpdateString("template.name","hello_world")
json.UpdateString("template.language.code","en_US")

http.AuthToken = "EAANrS5....yFB9Ma"
http.SetRequestHeader("Content-Type","application/json")

Dim resp As New Chilkat.HttpResponse
success = http.HttpJson("POST","https://graph.facebook.com/v18.0/111111111111111/messages",json,"application/json",resp)
If (success = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Debug.WriteLine(resp.StatusCode)
Debug.WriteLine(resp.BodyStr)

' Here's a screenshot of our WhatsApp test app.

'