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(C#) REST Upload Bandwidth ThrottleDemonstrates how to use upload bandwidth throttling with the REST API. This example will upload a file to Drobox using a file stream, with a limit on the bandwidth that can be used for the transfer.
// 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. // To use bandwidth throttling, the connection should be made using the socket API. // This provides numerous properties to customize the connection, such as // BandwidthThrottleDown, BandwidthThrottleUp, ClientIpAddress, ClintPort, Http Proxy, // KeepAlive, PreferIpv6, RequireSslCertVerify, SoRcvBuf, SoSndBuf, SoReuseAddr, // SOCKS proxy, TcpNoSDelay, TlsPinSet, TlsCipherSuite, SslAllowedCiphers, etc. Chilkat.Socket socket = new Chilkat.Socket(); int maxWaitMs = 5000; bool success = socket.Connect("content.dropboxapi.com",443,true,maxWaitMs); if (success != true) { Debug.WriteLine(socket.LastErrorText); Debug.WriteLine("Connect Fail Reason: " + Convert.ToString(socket.ConnectFailReason)); return; } // Set the upload bandwidth throttle rate to 50000 bytes per second. socket.BandwidthThrottleUp = 50000; Chilkat.Rest rest = new Chilkat.Rest(); // Tell the REST object to use the connected socket. rest.UseConnection(socket,true); // The remainder of this example is identical to the example at: // Dropbox File Stream Upload. // Add request headers. rest.AddHeader("Content-Type","application/octet-stream"); rest.AddHeader("Authorization","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": "/Homework/lit/hamlet.xml", // "mode": "add", // "autorename": true, // "mute": false // } Chilkat.JsonObject json = new Chilkat.JsonObject(); json.AppendString("path","/Homework/lit/hamlet.xml"); json.AppendString("mode","add"); json.AppendBool("autorename",true); json.AppendBool("mute",false); rest.AddHeader("Dropbox-API-Arg",json.Emit()); // Almost ready to go... // Let's setup a file stream to point to a file. Chilkat.Stream fileStream = new Chilkat.Stream(); fileStream.SourceFile = "qa_data/xml/hamlet.xml"; // 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". // Note: The file is streamed directly from disk. (The entire // file will not be loaded into memory.) string responseStr = rest.FullRequestStream("POST","/2/files/upload",fileStream); if (rest.LastMethodSuccess != true) { Debug.WriteLine(rest.LastErrorText); return; } // When successful, Dropbox responds with a 200 response code. if (rest.ResponseStatusCode != 200) { // Examine the request/response to see what happened. Debug.WriteLine("response status code = " + Convert.ToString(rest.ResponseStatusCode)); Debug.WriteLine("response status text = " + rest.ResponseStatusText); Debug.WriteLine("response header: " + rest.ResponseHeader); Debug.WriteLine("response body (if any): " + responseStr); Debug.WriteLine("---"); Debug.WriteLine("LastRequestStartLine: " + rest.LastRequestStartLine); Debug.WriteLine("LastRequestHeader: " + rest.LastRequestHeader); return; } // The response is JSON. Chilkat.JsonObject jsonResp = new Chilkat.JsonObject(); jsonResp.EmitCompact = false; jsonResp.Load(responseStr); // Show the JSON response. Debug.WriteLine(jsonResp.Emit()); // Returns JSON that 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 // } // Sample code to get data from the JSON response: int size = jsonResp.IntOf("size"); Debug.WriteLine("size = " + Convert.ToString(size)); string rev = jsonResp.StringOf("rev"); Debug.WriteLine("rev = " + rev); string clientModified = jsonResp.StringOf("client_modified"); Chilkat.CkDateTime ckdt = new Chilkat.CkDateTime(); ckdt.SetFromTimestamp(clientModified); bool bLocalTime = true; Chilkat.DtObj dt = ckdt.GetDtObj(bLocalTime); Debug.WriteLine(Convert.ToString(dt.Day) + "/" + Convert.ToString(dt.Month) + "/" + Convert.ToString(dt.Year) + " " + Convert.ToString(dt.Hour) + ":" + Convert.ToString(dt.Minute)); |
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