将新的数据行添加到Postgresql数据库时如何更新前端

Question

我创建了一个电子邮件解析器，该解析器接收传入的电子邮件，剥离一些数据并将其插入到postgres数据库中。该数据反映在前端。每当我从电子邮件中插入新的一行数据时，我都必须刷新前端才能看到新数据。当有新数据插入postgres时，有没有办法从前端触发我预先存在的API GET请求，以便我可以在前端看到实时数据更新？

Answer 1

You have two primary options:

• Use technique so-called long polling, when the frontend requests for some data from the server, server checks whenever there is a new record to send back if there is a record(s) it sends a response if there is not, it keeps the connection opened until the new record appears.
• Use socket connection (bidirectional client-server communication), when the client opens a socket connection and waits for a specific event to be emitted by the server