A small utility to convert deep Elixir maps with mixed string/atom keys to atom-only keyed maps. Optionally with a safe option, to prevent atom space exhaustion of the Erlang VM. Since v0.8 it also supports conversion of keys from CamelCase to under_score format.
# works with nested mapsiex>AtomicMap.convert(%{"a"=>2,"b"=>%{"c"=>4}},safe: true)%{a: 2,b: %{c: 4}}# works with nested maps + lists + mixed key types (atoms + binaries)iex>AtomicMap.convert([%{"c"=>1},%{:c=>2},%{"c"=>%{:b=>4}}],safe: true][%{c: 1},%{c: 2},%{c: %{b: 4}}]# converts CamelCase to under_score by default (notice that you might have to turn 'safe' flag off)iex>AtomicMap.convert(%{"CamelCase"=>[%{"c"=>1},%{"c"=>2}]},safe: false)%{camel_case: [%{c: 1},%{c: 2}]}# underscoring can be turned off by passing `underscore: false` to opts
iex>AtomicMap.convert(%{"CamelCase"=>[%{"c"=>1},%{"c"=>2}]},safe: false,underscore: false)%{CamelCase: [%{c: 1},%{c: 2}]}# hyphens are replaced
iex>AtomicMap.convert(%{"some-key"=>[%{"c"=>1},%{"c"=>2}]},safe: false,underscore: true)%{some_key: [%{c: 1},%{c: 2}]}Add atomic_map to your list of dependencies in
mix.exs:def deps do [{:atomic_map, "~> 0.8"}] end
- maybe allow direct conversion to a struct, like Poison does it: as: %SomeStruct{}...
$ mix bench