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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 need to use a library that does the heavy lifting for you, that stuff is quite complex. You can use a library like libcurl: https://curl.se/libcurl/c/ However that is a C library, and probably it maybe easier for you to use a C++ wrapper around the C library: https://github.com/jpbarrette/curlpp You can also cheat and use the command line tool directly calling it using system, with all the limitations of launching a separate process.
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