| Overview |  |
| get_env/1 | Retrieve all Key/Value pairs in the env for the specified app. |
| get_env/2 | The official way to get a value from the app's env. |
| get_env/3 | The official way to get a value from this application's env. |
| get_prop_or_env/3 | Retrieve value for Key from Properties if it exists, otherwise return from the application's env. |
| get_prop_or_env/4 | Return the value for Key in Properties if it exists, otherwise return the value from the application's env, or Default. |
| try_envs/1 | |
| try_envs/2 | Like get_env but try multiple {App, Key} combos before
returning {default, Default}. |
get_env(App::atom()) -> [{Key::atom(), Value::term()}]
Retrieve all Key/Value pairs in the env for the specified app.
get_env(App::atom(), Key::atom()) -> term()
The official way to get a value from the app's env. Will return the 'undefined' atom if that key is unset.
get_env(App::atom(), Key::atom(), Default::term()) -> term()
The official way to get a value from this application's env. Will return Default if that key is unset.
get_prop_or_env(Key::atom(), Properties::[{atom(), term()}], App::atom()) -> term()
Retrieve value for Key from Properties if it exists, otherwise return from the application's env.
get_prop_or_env(Key::atom(), Properties::[{atom(), term()}], App::atom(), Default::term()) -> term()
Return the value for Key in Properties if it exists, otherwise return the value from the application's env, or Default.
try_envs(Pairs) -> any()
try_envs(T::[{atom(), atom()}], Default::term()) -> {atom(), atom(), term()}
Like get_env but try multiple {App, Key} combos before
returning {default, Default}. The return value is {App,
Key, Value} so that the caller may distinguish where the
value came from. This is useful for scenarios when the config
app/key has changed between releases and you need to check for
both.
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