//public Task<SlackBot> GetAsync(SlackBot sb);
public async Task UploadFileAsync(string token, Stream stream, string fileName, string channels)
{
var multiForm = new MultipartFormDataContent();
multiForm.Add(new StringContent(token), "token");
multiForm.Add(new StringContent(channels), "channels");
multiForm.Add(new StreamContent(stream), "file", fileName);
var url = "https://slack.com/api/files.upload";
var response = await client.PostAsync(url, multiForm);
var responseJson = await response.Content.ReadAsStringAsync();
SlackFileResponse fileResponse =
JsonConvert.DeserializeObject <SlackFileResponse>(responseJson);
if (fileResponse.ok == false)
{
throw new Exception(
"failed to upload message: " + fileResponse.error
);
}
else
{
Console.WriteLine(
"Uploaded new file with id: " + fileResponse.file.id
);
}
}
// main method with logic
public static void Main()
{
var parameters = new NameValueCollection();
// put your token here
parameters["token"] = "xoxp-YOUR-TOKEN";
parameters["channels"] = "test";
var client = new WebClient();
client.QueryString = parameters;
byte[] responseBytes = client.UploadFile(
"https://slack.com/api/files.upload",
"D:\\temp\\Stratios_down.jpg"
);
String responseString = Encoding.UTF8.GetString(responseBytes);
SlackFileResponse fileResponse =
JsonConvert.DeserializeObject <SlackFileResponse>(responseString);
}
// sends a slack message asynchronous
// throws exception if message can not be sent
public static async Task UploadFileAsync(string token, string path, string channels)
{
// we need to send a request with multipart/form-data
var multiForm = new MultipartFormDataContent();
// add API method parameters
multiForm.Add(new StringContent(token), "token");
multiForm.Add(new StringContent(channels), "channels");
// add file and directly upload it
FileStream fs = File.OpenRead(path);
multiForm.Add(new StreamContent(fs), "file", Path.GetFileName(path));
// send request to API
var url = "https://slack.com/api/files.upload";
var response = await client.PostAsync(url, multiForm);
// fetch response from API
var responseJson = await response.Content.ReadAsStringAsync();
// convert JSON response to object
SlackFileResponse fileResponse =
JsonConvert.DeserializeObject <SlackFileResponse>(responseJson);
// throw exception if sending failed
if (fileResponse.ok == false)
{
throw new Exception(
"failed to upload message: " + fileResponse.error
);
}
else
{
Console.WriteLine(
"Uploaded new file with id: " + fileResponse.file.id
);
}
}
// main method with logic
public static void Main()
{
String token = "xoxp-YOUR-TOKEN";
/////////////////////
// Step 1: Upload file to Slack
var parameters = new NameValueCollection();
// put your token here
parameters["token"] = token;
var client1 = new WebClient();
client1.QueryString = parameters;
byte[] responseBytes1 = client1.UploadFile(
"https://slack.com/api/files.upload",
"C:\\Temp\\Stratios_down.jpg"
);
String responseString1 = Encoding.UTF8.GetString(responseBytes1);
SlackFileResponse fileResponse1 =
JsonConvert.DeserializeObject <SlackFileResponse>(responseString1);
String fileId = fileResponse1.file.id;
/////////////////////
// Step 2: Make file public and get the URL
var parameters2 = new NameValueCollection();
parameters2["token"] = token;
parameters2["file"] = fileId;
var client2 = new WebClient();
byte[] responseBytes2 = client2.UploadValues("https://slack.com/api/files.sharedPublicURL", "POST", parameters2);
String responseString2 = Encoding.UTF8.GetString(responseBytes2);
SlackFileResponse fileResponse2 =
JsonConvert.DeserializeObject <SlackFileResponse>(responseString2);
String imageUrl = fileResponse2.file.permalink_public;
/////////////////////
// Step 3: Send message including freshly uploaded image as attachment
var parameters3 = new NameValueCollection();
parameters3["token"] = token;
parameters3["channel"] = "test_new";
parameters3["text"] = "test message 2";
// create attachment
SlackAttachment attachment = new SlackAttachment();
attachment.fallback = "this did not work";
attachment.text = "this is anattachment";
attachment.image_url = imageUrl;
SlackAttachment[] attachments = { attachment };
parameters3["attachments"] = JsonConvert.SerializeObject(attachments);
var client3 = new WebClient();
byte[] responseBytes3 = client3.UploadValues("https://slack.com/api/chat.postMessage", "POST", parameters3);
String responseString3 = Encoding.UTF8.GetString(responseBytes3);
SlackMessageResponse messageResponse =
JsonConvert.DeserializeObject <SlackMessageResponse>(responseString3);
}
public async Task SendAttachmentAsync(string channel, string Message, byte[] bytea, string AttachmentName)
{
try
{
//FileStream str = File.OpenRead(@"\430831-most-popular-relaxing-desktop-background-1920x1080.jpg");
//byte[] fBytes = new byte[str.Length];
//str.Read(fBytes, 0, fBytes.Length);
//str.Close();
//Data["channels"] = channel;
//Data["text"] = Message;
//Client.QueryString = Data;
//string boundary = "------------------------" + DateTime.Now.Ticks.ToString("x");
//Client.Headers.Add("Content-Type", "multipart/form-data; boundary=" + boundary);
//string fileData = Client.Encoding.GetString(bytea);
//string package = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"file\"; filename=\"{1}\"\r\nContent-Type: {1}\r\n\r\n{3}\r\n--{0}--\r\n", boundary, AttachmentName, ".pdf", fileData);
//var nfile = Client.Encoding.GetBytes(package);
//string encodedfile = Encoding.ASCII.GetString(nfile);
//string url = "https://slack.com/api/files.upload?token=" + Config.OAuthAccessToken + "&content=" + nfile + "&channels=" + channel + "&pretty=1";
//byte[] responseBytes = Client.UploadData(url, nfile);
//String responseString = Encoding.UTF8.GetString(responseBytes);
//Console.WriteLine(responseString);
var ms = new System.IO.MemoryStream();
ms.Write(bytea, 0, bytea.Length);
ms.Position = 0;
multiForm.Add(new StringContent(channel), "channels");
multiForm.Add(new StringContent(Message), "initial_comment");
multiForm.Add(new StreamContent(ms), "file", AttachmentName);
var url = "https://slack.com/api/files.upload";
var response = await client.PostAsync(url, multiForm);
var responseJson = await response.Content.ReadAsStringAsync();
SlackFileResponse fileResponse =
JsonConvert.DeserializeObject <SlackFileResponse>(responseJson);
if (fileResponse.ok == false)
{
throw new Exception(
"failed to upload message: " + fileResponse.error
);
}
else
{
Console.WriteLine(
"Uploaded new file with id: " + fileResponse.file.id
);
}
}
catch (Exception e)
{
Console.WriteLine("SendAttachement Slack Exception" + e.Message + e.StackTrace);
}
}
