Add default value for the optional param

[oivoodoo]

Hello.

Probably it's not a good way to specify default param using validators. But I haven't found another way for now.

What do you think about it?

optional :type1, default: 'default-value1'

Test Examples:

get '/' { params[:type1] }

get '/'
last_response.body.should == 'default-value1'

get '/?type1=passed-value'
last_response.body.should == 'passed-value'

[dblock]

Semantically, it seems a little strange that a parameter is optional, but has a default value. Let me meditate on this for a bit. Appreciate any further thoughts on this.

Please do update CHANGELOG as well, thank you.

[oivoodoo]

@dblock I've just updated changelog. Thanks for reviewing. For now I am using this approach for defining default values for the api.

Example:

params do
  optional :connection_type, type: String, default: 'all', desc: 'wifi, carrier or all'
end
get '/' do
  devices = Device.where(connection_type: params[:connection_type]) # if developer doesn't pass this value I am taking devices with all connection type.
end

[dblock]

Merging, thank you.