Download file from API (Web Service) VBA code example

API

Application Programming Interfaces refers to pre-compiled code or procedures which takes inputs and pass it to the server (HOST) for processing. Post processing the inputs, server returns response to the API which it passes back to the end user. In DOT NET It is hardly 4-5 lines code and job is done. But when it comes to lower technology like VBA. ah!!! developer gets real headache.

Code example

Public Sub DownloadFileAndSaveToDeskTop(fileName as string)

	Dim myURL As String
	myURL = "https://YourWebSite.com/?your_query_parameters"

	Dim WinHttpReq As Object
	Set WinHttpReq = CreateObject("Microsoft.XMLHTTP")
	WinHttpReq.Open "GET", myURL, False, "username", "password"
	WinHttpReq.send

	myURL = WinHttpReq.responseBody
	If WinHttpReq.Status = 200 Then
		Set oStream = CreateObject("ADODB.Stream")
		oStream.Open
		oStream.Type = 1
		oStream.Write WinHttpReq.responseBody
		' 1 = no overwrite 
		' 2 = overwrite
		oStream.SaveToFile fileName, 2
		oStream.Close
	End If
End Sub

Calling method

Public Sub DownloadFileMethod()
	DownloadFileAndSave "C:\myfile.docx"
End Sub

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Download file from API (Web Service) VBA code example

API

Code example

Calling method

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