Chilkat Examples

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VBScript Examples


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(VBScript) Facebook Upload Photo from Local File

Uploads a new photo with a caption from a local file.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
Set outFile = fso.CreateTextFile("output.txt", True)

'  This example assumes Chilkat HTTP to have been previously unlocked.
'  See Unlock HTTP for sample code.

set http = CreateObject("Chilkat_9_5_0.Http")

set req = CreateObject("Chilkat_9_5_0.HttpRequest")
req.HttpVerb = "POST"
req.ContentType = "multipart/form-data"
req.Path = "/v2.7/me/photos"

'  Use the previously obtained access token.
'  Note: The publish_actions scope is required to upload a photo.
req.AddHeader "Authorization","Bearer FACEBOOK-ACCESS-TOKEN"

'  Send an "Expect: 100-continue" header in the request.
'  This causes the HTTP server to end a 100-continue response
'  immediately after receiving the HTTP header.  The client
'  (Chilkat) will receive this intermediate response, and if
'  it's not an error response, it knows that the HTTP server will
'  accept the data that is forthcoming.
'  The alternative is to get an error response after trying to upload
'  the entire contents of the files.
req.AddHeader "Expect","100-continue"

'  Set a photo caption.
req.AddParam "caption","Here are some penguins!"

'  Additional parameters can be added to the request by
'  calling AddParam once per parameter.
'  See https://developers.facebook.com/docs/graph-api/reference/user/photos
'  for more information about other optional parameters.

'  Indicate the local file to be uploaded.
success = req.AddFileForUpload("source","qa_data/jpg/penguins2.jpg")
If (success <> 1) Then
    outFile.WriteLine(req.LastErrorText)
    WScript.Quit
End If

'  Upload the image file..
' resp is a Chilkat_9_5_0.HttpResponse
Set resp = http.SynchronousRequest("graph.facebook.com",443,1,req)
If (http.LastMethodSuccess <> 1) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

'  Examine the response body:
responseJson = resp.BodyStr
outFile.WriteLine(responseJson)

'  The response contains JSON, such as this:
'  {"id":"10210224963435862","post_id":"12345678901234567_10210224963435862"}


outFile.Close

 

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