View Source Duct
A clean pipeline pattern for new Elixir project. Base on excellent Ecto.Multi data structure.
usage
Usage
multi
Multi
Duct.Multi.new()
|> Duct.Multi.run("salad", fn _ -> {:ok, 10} end) # Return {:ok, value} or {:error, error}
|> Duct.Multi.run("tomato", fn _ -> 5 end) # Default is {:ok, value}
|> Duct.Multi.run("total", fn %{"salad" => salad, "tomato" => tomato} ->
salad + tomato
end)
|> Duct.Multi.run("tax", fn %{"total" => total} -> total * 0.1 end)
|> Duct.run() # {:ok, %{"salad" => 10, "tomato" => 5, "total" => 15, "tax" => 1.5}}
parallel
Parallel
Duct.Parallel.new()
|> Duct.Parallel.run("first", fn ->
Process.sleep(2000)
IO.inspect(1)
1
end)
|> Duct.Parallel.run("second", fn ->
Process.sleep(1000)
IO.inspect(2)
2
end)
|> Duct.run() # {:ok, %{"first" => 1, "second" => 2}}
installation
Installation
def deps do
[
{:duct, "~> 1.0.0"}
]
end
contributing
Contributing
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
Please make sure to update tests as appropriate.