Complex JSON deserialization

[hugopl]

@straight-shoota

Yes you can do the latter with custom converter for this particular, nested field.

  @[JSON::Field(key: "complicated", converter: Thing::NestedArrayConverter)]
  property nested_array : Array(String)
  
  module NestedArrayConverter
    def self.from_json(pull)
      pull.on_key!("object") do
        pull.on_key!("nested") do
          pull.on_key!("deeply") do
            return Array(String).new(pull)
          end
        end
      end
    end
  end

This make me think that I wont be the only one that could find my imcomplete proposal to stdlib useful.

The above code would be

  @[JSON::Field(key: "complicated", converter: Thing::NestedArrayConverter)]
  property nested_array : Array(String)
  
  module NestedArrayConverter
    def self.from_json(pull)
      pull.on_key!("object", "nested", "deeply") do
        return Array(String).new(pull)
      end
    end
  end