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enux
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utility package for loading, validating and documenting your app's configuration variables from env, json, jsonc and toml files at runtime and injecting them into your environment
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lib/json.ex
defmodule Enux.Json do
@moduledoc """
handles json files
"""
import Enux.Utils
@doc """
decodes the json passed to it by `Enux.load` and format it into a keyword list
"""
def decode(content, opts) do
decode = get_decoder()
decoded = decode.(content)
cond do
is_map(decoded) -> decoded |> map_to_keyword_list(opts)
true -> decoded
end
end
defp get_decoder do
cond do
is_list(Application.spec(:jason)) ->
&Jason.decode!/1
is_list(Application.spec(:poison)) ->
&Poison.decode!/1
is_list(Application.spec(:jaxon)) ->
&Jaxon.decode!/1
true ->
raise RuntimeError, message: "No json decoder found"
end
end
defp map_to_keyword_list(map, opts) when is_map(map) do
map
|> Enum.map(fn {k, v} ->
case {k, v} do
{k, v} when is_map(v) ->
{k |> handle_number() |> String.to_atom(), map_to_keyword_list(v, opts)}
{k, v} ->
{k |> handle_number() |> String.to_atom(), v |> url_encode_conditional(opts)}
end
end)
|> Keyword.new()
end
end