PipeOperators

This lib adds a "new" pipe operator that is similar to the Maybe type on other functional programming languages. The ~> operator will pipe values into functions unless a tuple {:error, _} would be sent.

Usage

When values other than an error tuple is being piped, it acts like a normal pipe (|>)

import PipeOperators.SkipOnErrorPipe

[1, 2, 3]
~> Enum.map(fn number -> number + 1 end)

#> [2, 3, 4]

However, if {:error, _} is piped, the function is not called and error is returned.

import PipeOperators.SkipOnErrorPipe

{:error, "something went wrong"}
~> next_step()
~> send_message()

#> {:error, "something went wrong"}

Installation

The package can be installed by adding pipe_operators to your list of dependencies in mix.exs:

def deps do
  [
    {:pipe_operators, "~> 0.1.1"},
  ]
end