func createPost(w http.ResponseWriter, r *http.Request) {
    var newPost Post
    json.NewDecoder(r.Body).Decode(&newPost)
    insForm, err := db.Prepare("INSERT INTO posts (user_id,title, body ) VALUES (? ,?, ?)")
    if err != nil {
        panic(err.Error())
    }
    insForm.Exec(newPost.UserID, newPost.Title, newPost.Body)
}

func createComment(w http.ResponseWriter, r *http.Request) {
    var newComment Comment
    json.NewDecoder(r.Body).Decode(&newComment)
    insForm, err := db.Prepare("INSERT INTO comments (post_id, body ) VALUES (? ,? )")
    if err != nil {
        panic(err.Error())
    }

    insForm.Exec(newComment.PostID, newComment.Body)
}