Port ChartHistogram from FireFly Core #196
Description
Creating histograms of data is quite useful for visualizing blockchain data, especially transactions and events.
In FireFly Core, we have been using histograms to drive the FireFly UI
These APIs built on top of the SQL Database package in FireFly Common and would be an awesome addition to this common library to be re-used across other FireFly components such as transaction managers, data exchange, etc... to give an API to view data in a histogram.
Within FireFly Core, exists most of the code for this:
- The type definition ChartHistogram
- The code in the SQL layer to execute the right SELECT query and build the histogram result GetChartHistogram
- We should have an interface for the database plugin such as iChartCollection
The task would be to port that code over so it can be re-used