November 2017
Intermediate to advanced
670 pages
17h 35m
English
Content preview from Learning Functional Programming in Go
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A Filterer object
A Filterer object has one method, Filter, which has an input channel of type Order and returns an output channel of type Order:
We define types to act as receivers of Filter executions. The first filter encountered in the pipeline is the Authenticate filter. The following Authenticate filter has a single input parameter of type Order channel and it returns a single value of type Order channel.