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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.
Might be overkill for your situation but I generally use https://github.com/rails-api/active_model_serializers for my projects. Otherwise just build the hash you are sending back to the frontend with standard code.
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