PostAttachment issue

attachment_issue.go

package main

import (
	"fmt"
	"os"

	"github.com/andygrunwald/go-jira"
)

func main() {
	jiraClient, err := jira.NewClient(nil, "https://baseurl/")
	if err != nil {
		panic(err)
	}

	res, err := jiraClient.Authentication.AcquireSessionCookie("username", "password")
	if err != nil || res == false {
		panic(err)
	}

	r, err := os.Open("/tmp/uploadfile.txt")
	
	if err != nil {
		panic(err)
	}

	_, _, err = jiraClient.Issue.PostAttachment("issueKey", r, "attachfileexample.txt")
	
	if err != nil {
		panic(err)
	}
}