stringify_map/1 ?

[nelsonic]

I've found myself wanting to Logger.info("map: #{map}") a few times and not being able to ...
Considered using Jason.encode!/1 https://github.com/michalmuskala/jason#basic-usage
but would much prefer to have a lightweight solution that just makes a single string not a string with nested/escaped strings ...

iex(1)> Jason.encode!(%{"age" => 44, "name" => "Steve Irwin", "nationality" => "Australian"})
"{\"age\":44,\"name\":\"Steve Irwin\",\"nationality\":\"Australian\"}"

vs:

iex(1)> Useful.stringify_map(%{"age" => 44, "name" => "Steve Irwin", "nationality" => "Australian"})
"age:44, name:Steve Irwin, nationality: Australian"

I don't want JSON. I just want to see what's inside the Map without having to do any gymnastics.

@SimonLab thoughts? Have you needed something like this in your recent Elixir work? 💭

[SimonLab]

Could we use inspect?

%{a: 1} |> inspect() |> Logger.debug()

see: https://stackoverflow.com/questions/35008884/how-to-log-a-map-struct-in-elixir

[nelsonic]

Definitely! That's a good short-term solution and less to type. Good call.

[nelsonic]

This was shipped: https://hexdocs.pm/useful/Useful.html#stringify_map/1
But not documented in the README.md
So I've added the docs via this PR: #26