Adding Dependencies

Inside a singleton, you might need the functionality of another singleton or a built-in module. For that reason, we have developed a way to add dependencies with ease.

➕ Adding a dependency

Since v2.0.0, dependencies have to be added via an initialization function of the singleton:

local Service = {
    lifecycles = { "start" }
}

-- this function is optional, but required for this case
--   and doesn't need to be declared as a lifecycle
-- note: don't yield in here, it halts the whole framework thread
function Service:init(resolver)
    self.foo = resolver("@quebec/foo") -- built-in module called "foo"
    self.bar = resolver("@services/bar") -- other service called "bar"
    
    -- note: you can also add another controller as a dependency like this:
    --       > self.bar = dependency("@controllers/bar")
    
    -- a service called "test" from an instance with the export name "otherInstance"
    self.externalTest = resolver("@otherInstance/services/test")
end

function Service:start()
    -- You can now call these

    print(self.foo:doSomething())
    print(self.bar:doSomething())
    print(self.externalTest:doSomething())
end

return Service