gun - gundb中的私有(private)写入和公共(public)读取

Question

我想创建一个 microblog每个人都可以阅读所有帖子，但只有所有者可以删除或编辑帖子。在 gundb无海人人可以编辑或删除帖子，在sea( gun.user())我必须共享公钥，在海上如何获取所有用户的帖子并在时间轴中显示帖子？

我怎么能用 gundb 创建这个？

Answer 1

我一直在 gun 中寻找有关数据隐私问题的答案，这是我的答案:

变量的导入和定义

<script src="https://cdn.jsdelivr.net/npm/gun/gun.js"></script>
<script src="https://cdn.jsdelivr.net/npm/gun/sea.js"></script>

var gun = Gun()

创建微博第一作者

gun.user().create('firstMicroblogAuthor', 'somePassword')
gun.user().auth('firstMicroblogAuthor', 'somePassword')

创建帖子并获取作者

var post = {
  title: 'First post',
  text: 'Hello world!'
}

var author = gun.get('~@firstMicroblogAuthor') // There should be the same `username` in Step 2

保存帖子

gun
  .user()
  .get('posts')
  .set(post) // At this step, we saved the post in a user schedule, which by default is only writable by the user
  .once(function() {
    this.get('author').put(author) // In this step, we link our post with the author (with our user)
    gun.get('posts').set(this) // At this step, we save the post with the author installed in the main graph
  })

检查我们的帖子是否受到其他用户编辑的保护:

gun.user().leave()

gun.user().create('secondMicroblogAuthor', 'somePassword')
gun.user().auth('secondMicroblogAuthor', 'somePassword')

gun
  .get('posts') // Read posts from public graph
  .once(function() {
    this.get('text').put('Goodbye world!') // In this case, we will get an error, because this post was protected
  })