Issue while fetching data from nested json - ruby

Question

I am trying to fetch data from a nested json. Not able to understand the issue over here. Please ignore the fields that I am passing to ChildArticle class. I can sort that out.
URL for JSON - http://api.nytimes.com/svc/mostpopular/v2/mostshared/all-sections/email/30.json?api-key=31fa4521f6572a0c05ad6822ae109b72:2:72729901
Below is my code:
url = 'http://api.nytimes.com'
#Define the HTTP object
uri = URI.parse(url)
http = Net::HTTP.new(uri.host, uri.port)
#If the api being scraped uses https, then set use_ssl to true.
http.use_ssl = false
#Define the request_url
#Make a GET request to the given url
request = '/svc/mostpopular/v2/mostshared/all-sections/email/30.json?api-key=31fa4521f6572a0c05ad6822ae109b72:2:72729901'
response = http.send_request('GET', request)
#Parse the response body
forecast = JSON.parse(response.body)
forecast["results"]["result"].each do |item|
date = Date.parse(item["published_date"].to_s)
if (#start <= date) && (#end >= date)
article = News::ChildArticle.new(author: item["author"], title: item["title"], summary: item["abstract"],
images: item["images"],source: item["url"], date: item["published_date"],
guid: item["guid"], link: item["link"], section: item["section"],
item_type: item["item_type"], updated_date: item["updated_date"],
created_date: item["created_date"],
material_type_facet: item["material_type_facet"])
#articles.concat([article])
end
end
I get below error -
[]': no implicit conversion of String into Integer (TypeError) atforecast["results"]["result"].each do |item|`

Answer 1

Looks like forecast['results'] is simply an array, not a hash.
Take a look at this slightly modified script. Give it a run in your terminal, and check out its output.
require 'net/http'
require 'JSON'
url = 'http://api.nytimes.com'
uri = URI.parse(url)
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = false
request = '/svc/mostpopular/v2/mostshared/all-sections/email/30.json?api-key=31fa4521f6572a0c05ad6822ae109b72:2:72729901'
response = http.send_request('GET', request)
forecast = JSON.parse(response.body)
forecast["results"].each.with_index do |item, i|
puts "Item #{i}:"
puts '--'
item.each do |k, v|
puts "#{k}: #{v}"
end
puts '----'
end
Also, you may want to inspect the JSON structure of the API return from that URL. If you go to that URL, open your JavaScript console, and paste in
JSON.parse(document.body.textContent)
you can inspect the JSON structure very easily.
Another option would be downloading the response to a JSON file, and inspecting it in your editor. You'll need a JSON prettifier though.
File.open('response.json', 'w') do |f|
f.write(response.body)
end