How to properly configure replication on 2 servers (PostgreSQL)?

Question

PostgreSQL

So, at first there was one server hosting the project. It has pgpool-II for connection pooling. The load has increased, we bought another server with the same configuration. How to distribute http requests is clear to me. But what to do with the database, I do not know. Usually, as I understand it, a third server (proxy) is used, which distributes connections and replicates data between servers. But what about when there is only a 2nd server, without a 3rd one, a proxy?

Answer 1

Set up streaming replication and already in the code, drive some of the selects to the replica.