elixir.deserializer.ex.mustache Maven / Gradle / Ivy
{{>licenseInfo}}
defmodule {{moduleName}}.Deserializer do
@moduledoc """
Helper functions for deserializing responses into models
"""
@doc """
Update the provided model with a deserialization of a nested value
"""
@spec deserialize(struct(), :atom, :atom, struct(), keyword()) :: struct()
def deserialize(model, field, :list, mod, options) do
model
|> Map.update!(field, &(Poison.Decode.decode(&1, Keyword.merge(options, [as: [struct(mod)]]))))
end
def deserialize(model, field, :struct, mod, options) do
model
|> Map.update!(field, &(Poison.Decode.decode(&1, Keyword.merge(options, [as: struct(mod)]))))
end
def deserialize(model, field, :map, mod, options) do
maybe_transform_map = fn
nil ->
nil
existing_value ->
Map.new(existing_value, fn
{key, val} ->
{key, Poison.Decode.decode(val, Keyword.merge(options, as: struct(mod)))}
end)
end
Map.update!(model, field, maybe_transform_map)
end
def deserialize(model, field, :date, _, _options) do
value = Map.get(model, field)
case is_binary(value) do
true ->
case DateTime.from_iso8601(value) do
{:ok, datetime, _offset} -> Map.put(model, field, datetime)
_ -> model
end
false ->
model
end
end
end