say8425

require 'json'
require 'rest-client'

url = 'http://openapi.e-gen.or.kr/openapi/service/rest/ErmctInsttInfoInqireService/getParmacyListInfoInqire'.freeze
key = 'Your Secret key'
params = {pageNo: 1, numOfRows: 100, ServiceKey: key}

data = RestClient.get(url, {params: params, accept: :json})
total_count = (JSON.parse(data.body)['response']['body']['totalCount'] / 100.to_f).ceil
total_data = []