Golang: Export WP Draft Posts as a BibTeX Format

package main

import (
	"database/sql"
	"os"
	"strconv"
	"strings"

	_ "github.com/go-sql-driver/mysql"
	strip "github.com/grokify/html-strip-tags-go"
)

var tag struct {
	ID          int
	postTitle   string
	postContent string
}

var fileName = "file.bib"

func main() {

	// db, err := sql.Open("mysql", "user:pass@tcp(domain.com:3306)/database")
	db, err := sql.Open("mysql", "user:pass@/database")
	checkError(err)

	defer db.Close()

	err = db.Ping()
	checkError(err)

	results, err := db.Query("SELECT ID, post_title, post_content FROM cea_posts WHERE post_type='post' AND post_status='draft'")
	checkError(err)

	if _, err := os.Stat(fileName); os.IsNotExist(err) {
		_, err := os.Create(fileName)
		checkError(err)
	}
	for results.Next() {
		err = results.Scan(&tag.ID, &tag.postTitle, &tag.postContent)
		checkError(err)

		postContent := strip.StripTags(tag.postContent)
		postContent = strings.TrimSpace(postContent)

		f, err := os.OpenFile(fileName, os.O_APPEND|os.O_WRONLY, os.ModeAppend)
		checkError(err)
		_, err = f.WriteString("@misc{\ntitle = {" + tag.postTitle + "}, url = {http://domain.com/wp-admin/post.php?action=edit&post=" + strconv.Itoa(tag.ID) + "},\nannote = {"+ postContent +"}\n}\n")

		checkError(err)
	}
}
func checkError(err error) {
	if err != nil {
		panic(err)
	}
}