need to downlload attachment from jira via restapi

[vineeth pv]

need to downlload attachment from jira via restapi

sample code mentioned below

using RestSharp;
using System;
using System.IO;
using System.Net;

class Program
{
static void Main(string[] args)
{

var username = "username";
var password = "Token";
var baseUrl = "https://vineethpv.atlassian.net"; // Replace with your Jira instance URL
var issueKey = "TEST-1"; // Replace with your Jira issue key
var attachmentId = "10000"; // Replace with the attachment ID
var attachmentFilename = "homeBanner.jpg"; // Replace with the attachment filename

// Step 1: Authenticate with Jira
var client = new RestClient($"{baseUrl}/rest/api/2/issue/{issueKey}");

// Set basic authentication using the AddDefaultHeader method
client.AddDefaultHeader("Authorization", $"Basic {Convert.ToBase64String(System.Text.Encoding.ASCII.GetBytes($"{username}:{password}"))}");

var request = new RestRequest();
request.Method = Method.GET; // Set the HTTP method to GET
request.AddHeader("Content-Type", "application/json");
request.AddParameter("fields", "attachment");

IRestResponse response = client.Execute(request);

if (response.StatusCode == HttpStatusCode.OK)
{
// Step 2: Parse attachment information
dynamic issueData = Newtonsoft.Json.JsonConvert.DeserializeObject(response.Content);
var attachments = issueData.fields.attachment;
foreach (var attachment in attachments)
{
if (attachment.filename == attachmentFilename)
{
//var attachmentUrl = attachment.content;
//var baseUri = new Uri(baseUrl);

//var attachmentUri = new Uri(baseUri, attachmentUrl);

//// Step 3: Download attachment
//var attachmentClient = new RestClient(attachmentUri);
//var attachmentUrl = attachment.content;
var attachmentUrl = "https://vineethpv.atlassian.net/secure/attachment/10000/homeBanner.jpg";
// Step 3: Download attachment
var attachmentClient = new RestClient(attachmentUrl);

//// Step 3: Download attachment
//var attachmentClient = new RestClient(attachmentUrl);

// Set basic authentication for attachmentClient as well
attachmentClient.AddDefaultHeader("Authorization", $"Basic {Convert.ToBase64String(System.Text.Encoding.ASCII.GetBytes($"{username}:{password}"))}");

var attachmentRequest = new RestRequest();
attachmentRequest.AddHeader("User-Agent", "Test");
attachmentRequest.Method = Method.GET; // Set the HTTP method to GET

IRestResponse attachmentResponse = attachmentClient.Execute(attachmentRequest);

if (attachmentResponse.StatusCode == HttpStatusCode.OK)
{
// Step 4: Save the attachment to a file
File.WriteAllBytes(attachmentFilename, attachmentResponse.RawBytes);
Console.WriteLine($"Attachment '{attachmentFilename}' downloaded successfully.");
}
else
{
Console.WriteLine($"Error downloading attachment: {attachmentResponse.Content}");
}
}
}
}
else
{
Console.WriteLine($"Error: {response.Content}");
}
}
}

but getting this error, why?

"StatusCode: Forbidden, Content-Type: application/json; charset=UTF-8, Content-Length: -1)"