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(Lianja) Box.com Upload File

See more Box Examples

Demonstrates how to upload a file to box.com.

Chilkat Lianja Extension Download

Chilkat Lianja Extension

// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// ------------------------------------------------------------------------------------------
// Important:
// See this information about Box.com Service Accounts
// Box.com will automatically generate a Service Account where the name of the account is the name of your App.� 
// When you make API calls, it is for this service account, and the files that exist and what you see are not the same as your normal account.
// ------------------------------------------------------------------------------------------

loRest = createobject("CkRest")

//   Provide a previously obtained OAuth2 access token.
loOauth2 = createobject("CkOAuth2")
loOauth2.AccessToken = "BOX_ACCESS_TOKEN"
loRest.SetAuthOAuth2(loOauth2)

// First, make the initial connection.
// A single REST object, once connected, can be used for many Box REST API calls.
// The auto-reconnect indicates that if the already-established HTTPS connection is closed,
// then it will be automatically re-established as needed.
llBAutoReconnect = .T.

// ----------------------------------------------------------------------
// IMPORTANT: Note that the domain is "upload.box.com", not "api.box.com"
// ----------------------------------------------------------------------
llSuccess = loRest.Connect("upload.box.com",443,.T.,llBAutoReconnect)
if (llSuccess <> .T.) then
    ? loRest.LastErrorText
    release loRest
    release loOauth2
    return
endif

// The request body uses the "multipart/form-data" format to transmit two "parts". 
// The first part is called "attributes" and contains a JSON object with information about the file, including the name of the file 
// and the ID of the parent folder. The second part contains the contents of the file. 
// (Note that the name of the second "part" is ignored.)

loRest.AddHeader("Content-Type","multipart/form-data")

// Provide the content for each part of the request...

// First the JSON attributes.  Use "0" for the root folder.
//   {"name":"penguins.jpg", "parent":{"id":"0"}}
loJsonAttr = createobject("CkJsonObject")
loJsonAttr.UpdateString("name","penguins.jpg")
loJsonAttr.UpdateString("parent.id","0")

loRest.PartSelector = "1"
loRest.AddHeader("Content-Disposition",'form-data; name="attributes"; ')
loRest.SetMultipartBodyString(loJsonAttr.Emit())

loRest.PartSelector = "2"
loRest.AddHeader("Content-Disposition",'form-data; name="file"; filename="penguins.jpg"')
// "application/octet-stream" can be safely used for any type file..
loRest.AddHeader("Content-Type","application/octet-stream")

// Load the file into a binary data object, and then upload..
loFileDataObj = createobject("CkBinData")
loFileDataObj.LoadFile("qa_data/jpg/penguins.jpg")
loRest.SetMultipartBodyBd(loFileDataObj)

// Restore the PartSelector to "0" (for safety, in case something else sends another request on this object)
loRest.PartSelector = "0"

// Send the multipart/form-data request, which uploads the file contained in fileDataObj
lcResponseBody = loRest.FullRequestMultipart("POST","/api/2.0/files/content")
if (loRest.LastMethodSuccess <> .T.) then
    ? loRest.LastErrorText
    release loRest
    release loOauth2
    release loJsonAttr
    release loFileDataObj
    return
endif

// A 201 is received for a successful upload
if (loRest.ResponseStatusCode <> 201) then
    ? "Box.com upload failed."
    ? "Request header:"
    ? loRest.LastRequestHeader
    ? "---"
    ? "Response status code = " + str(loRest.ResponseStatusCode)
    ? "Response body:"
    ? lcResponseBody
    release loRest
    release loOauth2
    release loJsonAttr
    release loFileDataObj
    return
endif

? "File uploaded."


release loRest
release loOauth2
release loJsonAttr
release loFileDataObj

 

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