JIRA REST API how to add attachment using c# - jira

Question

I am using jira api to add attachment to the issue
According to documentation i have set few things.
submit a header of X-Atlassian-Token: nocheck with the request.
The name of the multipart/form-data parameter that contains attachments must be "file".
resource expects a multipart post.
& when i run my code i get internal server error.
my code is as follows
string postUrl = "http://localhost:8080/rest/api/latest/issue/TES-99/attachments";
System.Net.Http.HttpClient client = new System.Net.Http.HttpClient();
client.DefaultRequestHeaders.Add("X-Atlassian-Token", "nocheck");
client.BaseAddress = new System.Uri(postUrl);
byte[] cred = UTF8Encoding.UTF8.GetBytes(credentials);
client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(cred));
var content = new MultipartFormDataContent();
var values = new[]
{
new KeyValuePair<string, string>("file", "e:\\z.txt")
};
foreach (var keyValuePair in values)
{
content.Add(new StringContent(keyValuePair.Value), keyValuePair.Key);
}
var result = client.PostAsync(postUrl, content).Result;
please suggest where i am making mistake

Answer 1

I solved this too. now i am able to add attachment using JIRA API with C#.
i was making mistake with this piece of code.
var values = new[]
{
new KeyValuePair<string, string>("file", "e:\\z.txt")
};
foreach (var keyValuePair in values)
{
content.Add(new StringContent(keyValuePair.Value), keyValuePair.Key);
}
this is my code.
string postUrl = "http://localhost:8080/rest/api/latest/issue/" + projKey + "/attachments";
System.Net.Http.HttpClient client = new System.Net.Http.HttpClient();
client.DefaultRequestHeaders.Add("X-Atlassian-Token", "nocheck");
client.BaseAddress = new System.Uri(postUrl);
byte[] cred = UTF8Encoding.UTF8.GetBytes(credentials);
client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(cred));
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
MultipartFormDataContent content = new MultipartFormDataContent();
**//The code which solved the problem**
HttpContent fileContent = new ByteArrayContent(File.ReadAllBytes(filePath));
fileContent.Headers.ContentType = MediaTypeHeaderValue.Parse(mimeType);
content.Add(fileContent, "file",fileName);
var result = client.PostAsync(postUrl, content).Result;

Answer 2

This is my working code.
[HttpPost]
public async Task<IActionResult> CreateTicketWithAttachent(IFormFile file, [FromQuery] string issuekey)
{
try
{
string url = $"http://jiraurl/rest/api/2/issue/{issuekey}/attachments";
var client = new HttpClient();
var header = new AuthenticationHeaderValue("Basic", "your-auth-key");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Authorization = header;
client.DefaultRequestHeaders.Add("X-Atlassian-Token", "no-check");
MultipartFormDataContent multiPartContent = new MultipartFormDataContent("-data-");
ByteArrayContent byteArrayContent;
using (var ms = new MemoryStream())
{
file.CopyTo(ms);
var fileBytes = ms.ToArray();
//string fileString = Convert.ToBase64String(fileBytes);
byteArrayContent = new ByteArrayContent(fileBytes);
}
multiPartContent.Add(byteArrayContent, "file", file.FileName);
var response = await client.PostAsync(url, multiPartContent);
var result = response.Content.ReadAsStringAsync().Result;
if (response.StatusCode != System.Net.HttpStatusCode.OK)
throw new Exception(result);
return Ok();
}
catch (Exception e)
{
return BadRequest(e);
}
}