Oracle Setup

Compiling binary programs

cd $HOME
git clone https://github.com/skip-mev/slinky.git && cd slinky
git checkout v0.4.3
make build

After the compilation is complete, the slinky program will be generated in the ./build folder of the current directory.

Add the program to the systemd daemon

cat > /etc/systemd/system/slinkyd.service <<EOF
[Unit]
Description=slinky
After=network-online.target
[Service]
User=$USER
WorkingDirectory=$HOME/slinky 
ExecStart=$HOME/slinky/build/slinky --oracle-config-path ./config/core/oracle.json --market-map-endpoint 0.0.0.0:9090
StandardOutput=syslog
StandardError=syslog
Restart=always
RestartSec=10
LimitNOFILE=65535
[Install]
WantedBy=multi-user.target
EOF

If you customized the port when configuring the validator, please check whether your grpc port is 9090. If not, you need to modify the ExecStart parameter above. You can check how the address = in the [grpc] field in this configuration file ~/.initia/config/app.toml is defined.

Add the auto-start and start it

sudo systemctl daemon-reload
sudo systemctl enable  slinkyd.service
sudo systemctl start slinkyd.service

Modify the validator configuration to enable the oracle

sed -i -e 's/^enabled = "false"/enabled = "true"/' \
       -e 's/^oracle_address = ""/oracle_address = "127.0.0.1:8080"/' \
       -e 's/^client_timeout = "2s"/client_timeout = "500ms"/' \
       -e 's/^metrics_enabled = "false"/metrics_enabled = "false"/' \           
       ~/.initia/config/app.toml 

Restart the validator to make the new configuration file take effect

sudo systemctl restart initiad

Wait a moment and check whether the log is normal.

sudo journalctl -u  initia -f

sudo journalctl -u  slinky -f

Check if the oracle is normal

cd $HOME/slinky

make run-oracle-client

Normal log output:

Or

curl http://localhost:8080/slinky/oracle/v1/prices | jq