SPI connexion is classic (MOSI/MISO/CLK), Other pins that may need be adapted into code (for example if you use TTN network gateway code) according to the following pinout Lolin32-Lite RFM9x Module ...

MQTT gateway for ESP8266 or ESP32 with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, Bluetooth, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale, TPMS, BBQ ...