Sub telegram_pruebas_photo()
Const URL = "https://api.telegram.org/bot"
Const TOKEN = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
Const METHOD_NAME = "/sendPhoto?"
Const CHAT_ID = "-xxxxxxxxxxx"
Const FOLDER = "C:\documents\SCREENSHOT\"
Const JPG_FILE = "picture1.jpg"
Dim data As Object, key
Set data = CreateObject("Scripting.Dictionary")
data.Add "chat_id", CHAT_ID
' generate boundary
Dim BOUNDARY, s As String, n As Integer
For n = 1 To 16: s = s & Chr(65 + Int(Rnd * 25)): Next
BOUNDARY = s & CDbl(Now)
Dim part As String, ado As Object
For Each key In data.keys
part = part & "--" & BOUNDARY & vbCrLf
part = part & "Content-Disposition: form-data; name=""" & key & """" & vbCrLf & vbCrLf
part = part & data(key) & vbCrLf
Next
' filename
part = part & "--" & BOUNDARY & vbCrLf
part = part & "Content-Disposition: form-data; name=""photo""; filename=""" & JPG_FILE & """" & vbCrLf & vbCrLf
' read jpg file as binary
Dim jpg
Set ado = CreateObject("ADODB.Stream")
ado.Type = 1 'binary
ado.Open
ado.LoadFromFile FOLDER & JPG_FILE
ado.Position = 0
jpg = ado.read
ado.Close
' combine part, jpg , end
ado.Open
ado.Position = 0
ado.Type = 1 ' binary
ado.Write ToBytes(part)
ado.Write jpg
ado.Write ToBytes(vbCrLf & "--" & BOUNDARY & "---")
ado.Position = 0
Dim req As Object, reqURL As String
Set req = CreateObject("MSXML2.XMLHTTP")
reqURL = URL & TOKEN & METHOD_NAME
With req
.Open "POST", reqURL, False
.setRequestHeader "Content-Type", "multipart/form-data; boundary=" & BOUNDARY
.send ado.read
MsgBox .responseText
End With
End Sub
Function ToBytes(str As String) As Variant
Dim ado As Object
Set ado = CreateObject("ADODB.Stream")
ado.Open
ado.Type = 2 ' text
ado.Charset = "_autodetect"
ado.WriteText str
ado.Position = 0
ado.Type = 1
ToBytes = ado.read
ado.Close
End Function