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Classic ASP Web API Examples

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(Classic ASP) Paging User Photos with Cursor

Demonstrates how to iterate over the pages of user photos using a cursor.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' This example assumes a previously obtained an access token
set oauth2 = Server.CreateObject("Chilkat_9_5_0.OAuth2")
oauth2.AccessToken = "FACEBOOK-ACCESS-TOKEN"

set rest = Server.CreateObject("Chilkat_9_5_0.Rest")

' Connect to Facebook.
success = rest.Connect("graph.facebook.com",443,1,1)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
    Response.End
End If

' Provide the authentication credentials (i.e. the access key)
success = rest.SetAuthOAuth2(oauth2)

' Indicate that we only want the photos the user has personally uploaded.
success = rest.AddQueryParam("type","uploaded")

' We could limit the number of photos per page using the "limit" field.
success = rest.AddQueryParam("limit","20")

' Get the 1st page of photos. (Not the actual image data, but the information about each photo.)
' See https://developers.facebook.com/docs/graph-api/reference/user/photos/ for more information.
responseJson = rest.FullRequestNoBody("GET","/v2.7/me/photos")
If (rest.LastMethodSuccess <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
    Response.End
End If

set json = Server.CreateObject("Chilkat_9_5_0.JsonObject")
json.EmitCompact = 0
success = json.Load(responseJson)
Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

' 
' See Parsing the Facebook User Photos for code showing how to parse the JSON photos content.
' 

' Get the "after" cursor.
afterCursor = json.StringOf("paging.cursors.after")
Do While json.LastMethodSuccess = 1

    Response.Write "<pre>" & Server.HTMLEncode( "after cursor: " & afterCursor) & "</pre>"

    ' Prepare for getting the next page of photos.
    ' We can continue using the same REST object.
    ' If already connected, we'll continue using the existing connection.
    ' Otherwise, a new connection will automatically be made if needed.
    success = rest.ClearAllQueryParams()
    success = rest.AddQueryParam("type","uploaded")
    success = rest.AddQueryParam("limit","20")
    success = rest.AddQueryParam("after",afterCursor)

    responseJson = rest.FullRequestNoBody("GET","/v2.7/me/photos")
    If (rest.LastMethodSuccess <> 1) Then
        Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
        Response.End
    End If

    success = json.Load(responseJson)
    ' See Parsing the Facebook User Photos for code showing how to parse the JSON photos content.

    Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

    ' Get the cursor for the next page.
    afterCursor = json.StringOf("paging.cursors.after")
Loop

Response.Write "<pre>" & Server.HTMLEncode( "No more pages of photos.") & "</pre>"

%>
</body>
</html>

 

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