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(Swift) Box.com Streaming Upload FileDemonstrates how to upload a file to box.com, streaming the file directly from the filesystem. Note: This example requires a fix that is included in Chilkat v9.5.0.70 and above.
func chilkatTest() { // This requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. let rest = CkoRest() var success: Bool // Provide a previously obtained OAuth2 access token. let oauth2 = CkoOAuth2() oauth2.AccessToken = "BOX_ACCESS_TOKEN" rest.SetAuthOAuth2(oauth2) // 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. var bAutoReconnect: Bool = true // ---------------------------------------------------------------------- // IMPORTANT: Note that the domain is "upload.box.com", not "api.box.com" // ---------------------------------------------------------------------- success = rest.Connect("upload.box.com", port: 443, tls: true, autoReconnect: bAutoReconnect) if success != true { print("\(rest.LastErrorText)") return } // 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.) rest.AddHeader("Content-Type", value: "multipart/form-data") // Provide the content for each part of the request... // First the JSON attributes. Use "0" for the root folder. // {"name":"hedgehogs.jpg", "parent":{"id":"0"}} let jsonAttr = CkoJsonObject() jsonAttr.UpdateString("name", value: "hedgehogs.jpg") jsonAttr.UpdateString("parent.id", value: "0") rest.PartSelector = "1" rest.AddHeader("Content-Disposition", value: "form-data; name=\"attributes\"; ") rest.SetMultipartBodyString(jsonAttr.Emit()) // The upload will stream directly from a file. rest.PartSelector = "2" rest.AddHeader("Content-Disposition", value: "form-data; name=\"file\"; filename=\"hedgehogs.jpg\"") // "application/octet-stream" can be safely used for any type file.. rest.AddHeader("Content-Type", value: "application/octet-stream") // IMPORTANT: This example requires Chilkat v9.5.0.70 or later, for a fix that was made in // multipart/streaming uploads. let fileStream = CkoStream() fileStream.SourceFile = "qa_data/jpg/hedgehogs.jpg" rest.SetMultipartBodyStream(fileStream) // Restore the PartSelector to "0" (for safety, in case something else sends another request on this object) rest.PartSelector = "0" // Send the multipart/form-data request, which uploads the file by streaming directly from the filesystem. var responseBody: String? = rest.FullRequestMultipart("POST", uriPath: "/api/2.0/files/content") if rest.LastMethodSuccess != true { print("\(rest.LastErrorText)") return } // A 201 is received for a successful upload if rest.ResponseStatusCode.integerValue != 201 { print("Box.com upload failed.") print("Request header:") print("\(rest.LastRequestHeader)") print("---") print("Response status code = \(rest.ResponseStatusCode.integerValue)") print("Response body:") print("\(responseBody!)") return } print("File uploaded.") } |
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