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(Classic ASP) Download File from Dropbox (Streaming)See more Dropbox ExamplesDownloads a file from Dropbox, streaming it directly to a file in the filesystem.
<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. ' A Dropbox access token should have been previously obtained. ' Dropbox access tokens do not expire. ' See Dropbox Access Token. set rest = Server.CreateObject("Chilkat_9_5_0.Rest") ' Connect to Dropbox success = rest.Connect("content.dropboxapi.com",443,1,1) If (success <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>" Response.End End If ' Add request headers. success = rest.AddHeader("Authorization","Bearer DROPBOX_ACCESS_TOKEN") ' The download "parameters" are contained in JSON passed in an HTTP request header. ' This is the JSON indicating the file to be downloaded: ' { ' "path": "/Homework/lit/hamlet.xml", ' } set json = Server.CreateObject("Chilkat_9_5_0.JsonObject") success = json.AppendString("path","/Homework/lit/hamlet.xml") success = rest.AddHeader("Dropbox-API-Arg",json.Emit()) ' Setup a file stream for the download set fileStream = Server.CreateObject("Chilkat_9_5_0.Stream") fileStream.SinkFile = "qa_output/hamletFromDropbox.xml" ' Indicate that the call to FullRequestNoBody should send the response body ' to fileStream if the response status code is 200. ' If a non-success response status code is received, then nothing ' is streamed to the output file and the error response is returned by FullRequestNoBody. expectedStatus = 200 success = rest.SetResponseBodyStream(expectedStatus,1,fileStream) responseStr = rest.FullRequestNoBody("POST","/2/files/download") If (rest.LastMethodSuccess <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>" Response.End End If ' When successful, Dropbox responds with a 200 response code. If (rest.ResponseStatusCode <> 200) Then ' Examine the request/response to see what happened. Response.Write "<pre>" & Server.HTMLEncode( "response status code = " & rest.ResponseStatusCode) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "response status text = " & rest.ResponseStatusText) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "response header: " & rest.ResponseHeader) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "response body (if any): " & responseStr) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "---") & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "LastRequestStartLine: " & rest.LastRequestStartLine) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "LastRequestHeader: " & rest.LastRequestHeader) & "</pre>" Response.End End If ' Information about the downloaded file is also available as JSON in a response header. ' The "dropbox-api-result" response header contains the information. For example: apiResult = rest.ResponseHdrByName("dropbox-api-result") Response.Write "<pre>" & Server.HTMLEncode( apiResult) & "</pre>" ' In this case, the pretty-formatted dropbox-api-result JSON looks like this: ' { ' "name": "hamlet.xml", ' "path_lower": "/homework/lit/hamlet.xml", ' "path_display": "/Homework/lit/hamlet.xml", ' "id": "id:74FkdeNuyKAAAAAAAAAAAQ", ' "client_modified": "2016-06-02T23:19:00Z", ' "server_modified": "2016-06-02T23:19:00Z", ' "rev": "9482db15f", ' "size": 279658 ' } ' Load the JSON, pretty-print it, and demonstrate how to get some values... set jsonResult = Server.CreateObject("Chilkat_9_5_0.JsonObject") jsonResult.EmitCompact = 0 success = jsonResult.Load(apiResult) ' Show the JSON pretty-printed... Response.Write "<pre>" & Server.HTMLEncode( jsonResult.Emit()) & "</pre>" ' Sample code to get data from the JSON response: size = jsonResult.IntOf("size") Response.Write "<pre>" & Server.HTMLEncode( "size = " & size) & "</pre>" rev = jsonResult.StringOf("rev") Response.Write "<pre>" & Server.HTMLEncode( "rev = " & rev) & "</pre>" clientModified = jsonResult.StringOf("client_modified") set ckdt = Server.CreateObject("Chilkat_9_5_0.CkDateTime") success = ckdt.SetFromTimestamp(clientModified) bLocalTime = 1 ' dt is a Chilkat_9_5_0.DtObj Set dt = ckdt.GetDtObj(bLocalTime) Response.Write "<pre>" & Server.HTMLEncode( dt.Day & "/" & dt.Month & "/" & dt.Year & " " & dt.Hour _ & ":" & dt.Minute) & "</pre>" %> </body> </html> |
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