Class: DuckDuckGo

Inherits:
Object
  • Object
show all
Defined in:
lib/rubyduck.rb

Overview

Search for things on DuckDuckGo.com.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DuckDuckGo

Returns a new instance of DuckDuckGo.



8
9
10
11
 
# File 'lib/rubyduck.rb', line 8

def initialize()
  @con = Net::HTTP.new('api.duckduckgo.com', 443)
  @con.use_ssl = true
end

Instance Method Details

#describe(q) ⇒ Object

Give a short description about the query. Return nil if we don’t know anything about it.



15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/rubyduck.rb', line 15

def describe(q)
  res = json_query(q)

  if not(res["AbstractText"].empty?)
    return res["AbstractText"]
  elsif (_=res["RelatedTopics"][0]) and _["Text"]
    return _["Text"]
  else
    return nil
  end
end

#json_query(q) ⇒ Object

Return the JSON-encoded Hash given to us when we search for q.



30
31
32
33
34
35
36
 
# File 'lib/rubyduck.rb', line 30

def json_query(q)
  # 'o' specifies the output format; 'p' determines whether or not safe search
  # is on (-1 is off, 1 is on); 'q' is the query string.
  req_path = '/?' + URI.encode_www_form(q: q, p: -1, o: 'json')
  res_json = @con.get(req_path).body
  JSON.parse(res_json)
end