pg-jdbc-logical-decoding

install wal2json decoding plugin

git clone https://github.com/eulerto/wal2json.git
cd wal2json
USE_PGXS=1 sudo make
USE_PGXS=1 sudo make install

pg_hba.conf

local replication pg-jdbc-logical-decoding peer
host replication pg-jdbc-logical-decoding 127.0.0.1/32 md5
host replication pg-jdbc-logical-decoding ::1/128 md5

postgres.conf

wal_level = logical
max_wal_senders = 8
wal_keep_segments = 4
wal_sender_timeout = 60s
max_replication_slots = 4

create database, role, replication slot and table

./database/setup.sh

This script assumes that there is a superuser 'pgsql'.