(VB.NET UWP/WinRT) Twilio Send MMS (using Chilkat HTTP)

Send an outgoing MMS message. The only difference with MMS (as compared with SMS) is that a MediaUrl parameter is added to the POST. This means your image must be accessible on the web -- the Twilio server must be able to download the image from the URL you provide to include it in the MMS mesage to be sent.

Also, see Twilio MMS for more information about MMS.

For more information, see https://support.twilio.com/hc/en-us/articles/223179808-Sending-and-receiving-MMS-messages

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

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

Dim http As New Chilkat.Http
Dim success As Boolean

' Implements the following CURL command:

' (See information about using test credentials and phone numbers:  https://www.twilio.com/docs/iam/test-credentials)

' curl -X POST https://api.twilio.com/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json \
' --data-urlencode "From=+15005550006" \
' --data-urlencode "Body=body" \
' --data-urlencode "To=+15005551212" \
' -u TWILIO_ACCOUNT_SID:TWILIO_AUTH_TOKEN

' Use the following online tool to generate HTTP code from a CURL command
' Convert a cURL Command to HTTP Source Code

http.Login = "TWILIO_ACCOUNT_SID"
http.Password = "TWILIO_AUTH_TOKEN"

Dim req As New Chilkat.HttpRequest
req.HttpVerb = "POST"
req.Path = "/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json"
req.ContentType = "application/x-www-form-urlencoded"
req.AddParam("From","+15005550006")
req.AddParam("Body","body")
req.AddParam("To","+15005551212")
req.AddParam("MediaUrl","https://www.chilkatsoft.com/images/starfish.jpg")

Dim resp As Chilkat.HttpResponse = Await http.PostUrlEncodedAsync("https://api.twilio.com/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json",req)
If (http.LastMethodSuccess = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim sbResponseBody As New Chilkat.StringBuilder
resp.GetBodySb(sbResponseBody)
Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

Debug.WriteLine("Response Body:")
Debug.WriteLine(jResp.Emit())

' A 201 status code indicates success.
Dim respStatusCode As Integer = resp.StatusCode
Debug.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(resp.Header)
    Debug.WriteLine("Failed.")

    Exit Sub
End If



' Sample JSON response:
' (Sample code for parsing the JSON response is shown below)

' {
'   "sid": "SM477111c301794f14b11eca5eefd5c350",
'   "date_created": "Tue, 18 Aug 2020 15:04:47 +0000",
'   "date_updated": "Tue, 18 Aug 2020 15:04:47 +0000",
'   "date_sent": null,
'   "account_sid": "AC2e9b6bc0f51133df24926f07341d3824",
'   "to": "+15005551212",
'   "from": "+15005550006",
'   "messaging_service_sid": null,
'   "body": "body",
'   "status": "queued",
'   "num_segments": "1",
'   "num_media": "0",
'   "direction": "outbound-api",
'   "api_version": "2010-04-01",
'   "price": null,
'   "price_unit": "USD",
'   "error_code": null,
'   "error_message": null,
'   "uri": "/2010-04-01/Accounts/AC2e9b6bc0f51133df24926f07341d3824/Messages/SM477111c301794f14b11eca5eefd5c350.json",
'   "subresource_uris": {
'     "media": "/2010-04-01/Accounts/AC2e9b6bc0f51133df24926f07341d3824/Messages/SM477111c301794f14b11eca5eefd5c350/Media.json"
'   }
' }


' Sample code for parsing the JSON response...
' Use the following online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON


Dim date_created As New Chilkat.DtObj
Dim date_updated As New Chilkat.DtObj
Dim date_sent As New Chilkat.DtObj

Dim sid As String = jResp.StringOf("sid")
jResp.DtOf("date_created",False,date_created)
jResp.DtOf("date_updated",False,date_updated)
jResp.DtOf("date_sent",False,date_sent)
Dim account_sid As String = jResp.StringOf("account_sid")
Dim v_to As String = jResp.StringOf("to")
Dim from As String = jResp.StringOf("from")
Dim messaging_service_sid As String = jResp.StringOf("messaging_service_sid")
Dim body As String = jResp.StringOf("body")
Dim status As String = jResp.StringOf("status")
Dim num_segments As String = jResp.StringOf("num_segments")
Dim num_media As String = jResp.StringOf("num_media")
Dim direction As String = jResp.StringOf("direction")
Dim api_version As String = jResp.StringOf("api_version")
Dim price As String = jResp.StringOf("price")
Dim price_unit As String = jResp.StringOf("price_unit")
Dim error_code As String = jResp.StringOf("error_code")
Dim error_message As String = jResp.StringOf("error_message")
Dim uri As String = jResp.StringOf("uri")
Dim subresource_urisMedia As String = jResp.StringOf("subresource_uris.media")