apt install git composer manticore php-fpm php-curl php-mbstring php-pdo php-bcmath
git clone https://github.com/kvazar-network/crawler.git
cd crawler
composer update

Setup

cp example/config.json config.json

Launch

php src/index.php 60 - crawl, check for new blocks every n seconds (60 by default)
php src/index.php drop - truncate index
php src/index.php optimize - optimize index

Manticore

To prevent data lose on server failures, change default binlog flush strategy to binlog_flush = 1

Kevacoin

Remote or local kevacoind connection required as the data source for this crawler.

Requirements

RAM: 1.5G+
Disk: 2G+ (Kevacoin blockchain size in 2025)

kevacoin.conf

Before continue with examples below, create new system user: useradd -m kevacoin then copy kevacoind compiled into the profile root; make sure kevacoind binary has executable permissions: chmod +x kevacoind

To accept RPC connections, create kevacoin.conf:

#/home/kevacoin/.kevacoin/kevacoin.conf
rpcuser=USERNAME
rpcpassword=PASSWORD

make sure config.json corresponds rpcuser and rpcpassword values!

systemd

#/etc/systemd/system/kevacoin.service
[Unit]
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
User=kevacoin
Group=kevacoin
ExecStart=/home/kevacoin/kevacoind -server

[Install]
WantedBy=multi-user.target

systemctl daemon-reload - apply systemd changes
systemctl enable kevacoin - enable on system startup
systemctl start kevacoin - launch kevacoind