在 VBA 中使用 curl 上传图像

Question

I have registered in a website that supports API and I have tested the CURL command line and it works fine for me

curl --location --request POST "https://api.imgbb.com/1/upload?key=APIKEY" --form "image=iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="

this is API information page https://api.imgbb.com/

I have no great knowledge of how to use excel VBA to send an equivalent command line? I am totally new to such stuff and I have searched a lot and can't get how things go on

I have found this link that may be helpful but it is in VB.NET Help with Imgur API and VB.NET - Image POST

** Now I got the solution and I have developed it like that

Sub Test()
Dim v As Double, sPath As String, sAPIKey As String, sBase64 As String, cmd As String

sPath = ThisWorkbook.Path & "\Result.txt"
sAPIKey = "APIKEY"
sBase64 = ConvertFileToBase64(ThisWorkbook.Path & "\Logo.png")

cmd = Replace(Replace("curl --location --request POST ""https://api.imgbb.com/1/upload?key=¤"" --form ""image=$"" -o ", "¤", sAPIKey), "$", sBase64) & sPath
v = Shell(cmd)
Debug.Print cmd & " Completed" & vbCr & "Process " & v
End Sub

Public Function ConvertFileToBase64(strFilePath As String) As String
Const UseBinaryStreamType = 1

Dim streamInput: Set streamInput = CreateObject("ADODB.Stream")
Dim xmlDoc: Set xmlDoc = CreateObject("Microsoft.XMLDOM")
Dim xmlElem: Set xmlElem = xmlDoc.CreateElement("tmp")

streamInput.Open
streamInput.Type = UseBinaryStreamType
streamInput.LoadFromFile strFilePath
xmlElem.DataType = "bin.base64"
xmlElem.NodeTypedValue = streamInput.Read
ConvertFileToBase64 = Replace(xmlElem.Text, vbLf, "")

Set streamInput = Nothing
Set xmlDoc = Nothing
Set xmlElem = Nothing
End Function

This works fine for small sizes but not for the large ones ..example I have a Logo.png and the size is 545KB in size and this fails. While other smaller images uploaded well

I have manually tried it and it failed too. it seems cms window has a limit number of characters allowed so I can't get all the base64 string in the command line

Answer 1

You can use Shell

Sub mycurl()

  Dim var As Double, cmd As String
  cmd = "curl -I ""https://api.imgbb.com/"" -o imgbb.txt" ' head only
  var = Shell(cmd)
  MsgBox cmd & " completed" & vbCr & "Process " & var

End Sub

Looks like the API accepts binary files so no need to base64 encode. Try

cmd = "curl --location --request POST ""https://api.imgbb.com/1/upload?" & _
      "key=" & sAPIKey & """ " & _
      "--form image=@""/path/Logo.png"" -o " & sPath & "/response.json"