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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.
You make the entrypoint as minimal as possible and develop the actual application logic basically as a library. This example - while being C++ - shows you how to do that. You can generate the exact same project with the tool linked in the README with the --c switch for a C project.
NOTE:
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