What base to use to store the string?

Question

Database

There is a need to save data. This is a graph, requests to a third-party API go every second, and this data must be stored somewhere and returned when requested, a graph is built from the data. What database should be used in such cases? It is clear that it should work quickly enough. I would like to consider different options, up to the point that writing this data stupidly to a file as a string is also an option, but I want to understand what is better and faster and more reliable.

Answer 1

If this is a graph from time, then something from the timeseries