Environment variable with ChicagoBoss

On Chicagoboss I need to have some configuration variable set in the main configuration. Just like my experience with Django framework on settings.py

In Chicagoboss, we can do it also and add our on config variable in the configuration file, which are boss.config.

These below are the part of the config we can custom :

%% APPLICATION CONFIGURATIONS

%% domains - A list of domains to serve the application on
%% static_prefix - The URL prefix of static assets
%% doc_prefix - The URL prefix for developer documentation
{ myapp, [
    {path, "../myapp"},
    {base_url, "/"},

    {dummy, true}
]}

So we can add the variable for our application with below settings :

%% APPLICATION CONFIGURATIONS

%% domains - A list of domains to serve the application on
%% static_prefix - The URL prefix of static assets
%% doc_prefix - The URL prefix for developer documentation
{ myapp, [
    {path, "../myapp"},
    {base_url, "/"},

    {dummy, true}.
    {mail_from, "justme@mydomain.com"},
    {api_key, "324298nvUYSCN298snk92442ps"}

]}

Now how we can use it on the application. We can use :

application:get_env(myapp, api_key).

If we want to print out on console :

io:fwrite("~p", [application:get_env(myapp, api_key)]).

And if we want to assign the variable to our local variable in the app we can use :

{ok, apikey} = application:get_env(myapp, api_key).

With this we can add as many as variable we need on the config.

Posted in: ChicagoBoss,Erlang