how can I send data over MQTT using b-l475e-iot01a to a database

[Antonio Vilei]

The X-CUBE-CLOUD package includes some examples about using MQTT with B-L475E-IOT01:

https://www.st.com/en/embedded-software/x-cube-cloud.html

[NKhad.1]

should I use Generic IoT cloud software to send data to MongoDB