(Swift 2) Upload String to Dropbox

Uploads a string to a file on Dropbox. This example can upload content up to 150MB, assuming a 150MB string fits in memory for your app. Larger files must be uploaded with an upload session (upload_session/start).

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func chilkatTest() {
    // 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.

    let rest = CkoRest()

    // Connect to Dropbox
    var success: Bool = rest.Connect("content.dropboxapi.com", port: 443, tls: true, autoReconnect: true)
    if success != true {
        print("\(rest.LastErrorText)")
        return
    }

    // Add request headers.
    rest.AddHeader("Content-Type", value: "application/octet-stream")
    rest.AddHeader("Authorization", value: "Bearer DROPBOX_ACCESS_TOKEN")

    // The upload "parameters" contained in JSON passed in an HTTP request header.
    // This is the JSON to be added in this example:
    // { 
    //    "path": "/jack.txt",
    //    "mode": "add",
    //    "autorename": true,
    //    "mute": false
    // }

    // This will be the content of the file created in Dropbox.
    var content: String? = "All work and no play makes Jack a dull boy"

    let json = CkoJsonObject()
    json.AppendString("path", value: "/jack.txt")
    json.AppendString("mode", value: "add")
    json.AppendBool("autorename", value: true)
    json.AppendBool("mute", value: false)
    rest.AddHeader("Dropbox-API-Arg", value: json.Emit())

    // Do the upload.  The URL is https://content.dropboxapi.com/2/files/upload.
    // We already connected to content.dropboxapi.com using TLS (i.e. HTTPS),
    // so now we only need to specify the path "/2/files/upload".

    var responseStr: String? = rest.FullRequestString("POST", uriPath: "/2/files/upload", bodyText: content)
    if rest.LastMethodSuccess != true {
        print("\(rest.LastErrorText)")
        return
    }

    // When successful, Dropbox responds with a 200 response code.
    if rest.ResponseStatusCode.intValue != 200 {
        // Examine the request/response to see what happened.
        print("response status code = \(rest.ResponseStatusCode.intValue)")
        print("response status text = \(rest.ResponseStatusText)")
        print("response header: \(rest.ResponseHeader)")
        print("response body (if any): \(responseStr!)")
        print("---")
        print("LastRequestStartLine: \(rest.LastRequestStartLine)")
        print("LastRequestHeader: \(rest.LastRequestHeader)")
        return
    }

    print("LastRequestHeader: \(rest.LastRequestHeader)")

    // The response is JSON.
    let jsonResp = CkoJsonObject()
    jsonResp.EmitCompact = false
    jsonResp.Load(responseStr)

    // Show the JSON response.
    print("\(jsonResp.Emit())")

    // Returns JSON that looks like this:
    // { 
    //  "name": "jack.txt",
    //  "path_lower": "/jack.txt",
    //  "path_display": "/jack.txt",
    //  "id": "id:yqx4-tE_NKAAAAAAAAAAAQ",
    //  "client_modified": "2016-06-02T20:42:11Z",
    //  "server_modified": "2016-06-02T20:42:11Z",
    //  "rev": "8482db15f",
    //  "size": 42
    // }

    // Sample code to get data from the JSON response:
    var size: Int = jsonResp.IntOf("size").intValue
    print("size = \(size)")

    var rev: String? = jsonResp.StringOf("rev")
    print("rev = \(rev!)")

    var clientModified: String? = jsonResp.StringOf("client_modified")
    let ckdt = CkoDateTime()
    ckdt.SetFromTimestamp(clientModified)
    var bLocalTime: Bool = true
    var dt: CkoDtObj? = ckdt.GetDtObj(bLocalTime)
    print("\(dt!.Day.intValue)/\(dt!.Month.intValue)/\(dt!.Year.intValue) \(dt!.Hour.intValue):\(dt!.Minute.intValue)")
    dt = nil

}