-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Ah. In practice mqtt is lightweight enough of a protocol that it should rarely block long enough to hide a button press. But https://github.com/marvinroger/async-mqtt-client might be what you're looking for.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.