COTOHA API で構文解析 (Ruby)

#! /usr/bin/ruby
# -*- encoding: utf-8 -*-
#
#   parsing.rb
#
#                   Feb/27/2020
#
# ---------------------------------------------------------------------
require 'faraday'
require 'json'
#
load 'get_config.rb'
load 'get_token.rb'
# ---------------------------------------------------------------------
STDERR.puts "*** 開始 ***"
#
config = get_config_proc()
#
access_token = get_token_proc(config)
#   
sentence = "特急はくたか"
#
headers={
    "Content-Type": "application/json",
    "Authorization": "Bearer " + access_token
    }
#
data = {
    "sentence": sentence,
    "type": "default"
    }

str_json = JSON.generate(data)
#
url = config['url_base'] + "v1/parse"
#
con = Faraday.new 
res = con.post do |req|
    req.url url
    req.headers = headers
    req.body = str_json
    end
#
    puts res.status
    dict_aa=JSON.parse(res.body)
#
    dict_aa['result'].each {|unit|
        unit['tokens'].each {|token|
            str_out = token['form'] + "\t" + token['pos']
            puts str_out
        }
    }
#
STDERR.puts "*** 終了 ***"
# ---------------------------------------------------------------------

# -*- encoding: utf-8 -*-
#
#   get_config.rb
#
#                   Feb/27/2020
#
# ---------------------------------------------------------------------
require 'dotenv'
#
# ---------------------------------------------------------------------
def get_config_proc()
    Dotenv.load
    config = {}
    config["grantType"] = "client_credentials"
    config["clientId"] = ENV["CLIENT_ID"]
    config["clientSecret"] = ENV["CLIENT_SECRET"]
    config["url_publish"] = ENV['ACCESS_TOKEN_PUBLISH_URL']
    config["url_base"] = ENV['DEVELOPER_API_BASE_URL']
#
    return config
end
# ---------------------------------------------------------------------

# -*- encoding: utf-8 -*-
#
#   get_token.rb
#
#                   Feb/27/2020
#
# ---------------------------------------------------------------------
require 'faraday'
require 'json'
#
# ---------------------------------------------------------------------
def get_token_proc(config)
    str_json = JSON.generate(config)
#
    headers={
        "Content-Type": "application/json"
        }
#
    con = Faraday.new 
    res = con.post do |req|
        req.url config['url_publish']
        req.headers['Content-Type'] = 'application/json'
        req.body = str_json
    end
#
    dict_aa=JSON.parse(res.body)
    access_token = dict_aa['access_token']
#
    return access_token
end
# ---------------------------------------------------------------------

$ ./parsing.rb 
*** 開始 ***
200
特急  名詞
は 動詞語幹
く 動詞接尾辞
たか  名詞
*** 終了 ***