Group and Sort
Learn to use the group_by() and take_sort() functions in the Flow module.
We'll cover the following
Group
Like Enum.group_by/2
, Flow.group_by/2
groups the data by the given criteria. They both are implemented using the reduce
function behind the scenes. Therefore, we’ll keep our Flow.partition/2
function to continue routing events to the correct process. This ensures that the same process groups airports of the same country.
Let’s replace Flow.reduce/3
with Flow.group_by/2
:
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