Documentation for Digger Protocol
Summary
Functions
'Atomize' a valid Types.data_type according to the protocol implementation
Camel case a valid Types.data_type according to the protocol implementation
'Dasherize' a valid Types.data_type according to the protocol implementation
Lower case first letter of a valid Types.data_type according to the protocol implementation
snake_case a valid Types.data_type according to the protocol implementation
'Stringify' a valid Types.data_type according to the protocol implementation
Upper case the first letter of a valid Types.data_type according to the protocol implementation
Types
@type t() :: term()
All the types that implement this protocol.
Functions
@spec atomize( Digger.Types.data_type(), keyword() ) :: Digger.Types.valid_return_type()
'Atomize' a valid Types.data_type according to the protocol implementation
By default, atomizing a string that has no corresponding existing atom
creates a new one via String.to_atom/1, which is safe for trusted input
but can exhaust the atom table if used on untrusted/external data (atoms
are never garbage collected).
Pass existing: true to atomize via String.to_existing_atom/1 instead:
strings that already have a matching atom are converted as usual, and
strings that don't are left as the original string rather than raising or
creating a new atom.
Examples
iex> Digger.atomize(%{"user" => %{"name" => "Ada"}})
%{user: %{name: "Ada"}}
iex> Digger.atomize(%{"ok" => 1, "no_such_atom_xyz" => 2}, existing: true)
%{:ok => 1, "no_such_atom_xyz" => 2}
@spec camel_case( Digger.Types.data_type(), keyword() ) :: Digger.Types.valid_return_type()
Camel case a valid Types.data_type according to the protocol implementation
The default is UpperCamelCase; pass key_transform: :lower for the
lowerCamelCase convention used in JavaScript APIs.
Examples
iex> Digger.camel_case(%{user_id: 1})
%{UserId: 1}
iex> Digger.camel_case(
...> %{user_id: 1},
...> type: :key, key_transform: :lower, value_transform: :none
...> )
%{userId: 1}
@spec dasherize( Digger.Types.data_type(), keyword() ) :: Digger.Types.valid_return_type()
'Dasherize' a valid Types.data_type according to the protocol implementation
Examples
iex> Digger.dasherize(%{"foo_bar" => 1})
%{"foo-bar" => 1}
@spec lowercase_first( Digger.Types.data_type(), keyword() ) :: Digger.Types.valid_return_type()
Lower case first letter of a valid Types.data_type according to the protocol implementation
Examples
iex> Digger.lowercase_first(%{"FooBar" => 1})
%{"fooBar" => 1}
@spec snake_case( Digger.Types.data_type(), keyword() ) :: Digger.Types.valid_return_type()
snake_case a valid Types.data_type according to the protocol implementation
Only keys are transformed by default — string values pass through unchanged.
Examples
iex> Digger.snake_case(%{"userId" => 1, "displayName" => "johnDoe"})
%{"user_id" => 1, "display_name" => "johnDoe"}
@spec stringify( Digger.Types.data_type(), keyword() ) :: Digger.Types.valid_return_type()
'Stringify' a valid Types.data_type according to the protocol implementation
Examples
iex> Digger.stringify(%{user: %{name: "Ada"}})
%{"user" => %{"name" => "Ada"}}
@spec upcase_first( Digger.Types.data_type(), keyword() ) :: Digger.Types.valid_return_type()
Upper case the first letter of a valid Types.data_type according to the protocol implementation
Examples
iex> Digger.upcase_first(%{"fooBar" => 1})
%{"FooBar" => 1}