Am using the twitter gem to connect to the twitter streaming api.
When i run the code in the console in sublime text 2, everything works as it should and am getting the results from the api. However when i try to run the script from the terminal i get this error:
/Users/username/.rbenv/versions/2.1.4/lib/ruby/gems/2.1.0/gems/twitter-5.15.0/lib/twitter/streaming/connection.rb:16:in `initialize': Can't assign requested address - connect(2) for "199.16.156.217" port (Errno::EADDRNOTAVAIL)
Am only using the example code from the github page of the twitter gem.
https://github.com/sferik/twitter
client = Twitter::Streaming::Client.new do |config|
config.consumer_key = "YOUR_CONSUMER_KEY"
config.consumer_secret = "YOUR_CONSUMER_SECRET"
config.access_token = "YOUR_ACCESS_TOKEN"
config.access_token_secret = "YOUR_ACCESS_SECRET"
end
client.sample do |object|
puts object.text if object.is_a?(Twitter::Tweet)
end
Do anyone know why i get this error, and how i can fix this?
require 'twitter'
while true
config = {
:consumer_key => CONSUMER_KEY,
:consumer_secret => COMSUMER_SECRET,
:access_token => ACCESS_TOKEN,
:access_token_secret => ACCESS_TOKEN_SECRET,
}
sClient = Twitter::Streaming::Client.new(config)
topics = ['edelweiss', 'rose']
sClient.filter(:track => topics.join(',')) do |tweet|
if tweet.is_a?(Twitter::Tweet)
puts "#{tweet.user.screen_name}: #{tweet.text}"
end
end
end
running code
$ ruby lasswi.rb
Suphatra_Rfc: RT #GGiftfyy: Rose Gold ในมือนั้นอิจเเรงงงง เครื่องเก่าโยนมาทางนี้ก็ได้นะเพ่~ น้องพร้อมเสมอ😂😂 #งานซูมต้องมา #อยากได้อ่ะอยากได้ 😆 http://t.…
CBullsfans: Jimmy Butler Reportedly Doesn't Respect Derrick Rose's Work Ethic http://t.co/3Ikjvvjuth #Bulls #NBA
sobinasalvez: RT #iPhoneTeam: Rose gold everything http://t.co/1DLhXokknu
magicearth_: RT #magazine_wmw: Rose-ringed parakeets in flight on their way to roost in an urban cemetery in London, England.
Photograph: Sam Hobson htt…
demoo2012: Rose, use this pic 👍
#Razana96 http://t.co/uAwS9JdHyl
EndearingImages: New artwork for sale! - "Grace" - http://t.co/ugpIaxABqg #fineartamerica http://t.co/jg0e3eDNll
LoveKnitting: Great rose workshop with #NickyKnits at #TheKnittingandStitchingShow such a lovely lady! #twistedthread http://t.co/rV0Bsjg63t
camarillonican4: Brand New Sealed - Apple iPhone 6S Plus - 64GB - Rose Gold - UNLOCKED http://t.co/ygFPoN7pLO http://t.co/mqXKJmmrNz
Dekho00: RT #PAPIGFUNK: Giveaway ENDING on Sunday! Enter Now- iPhone 6S Plus - Rose Gold - Unboxing + Giveaway! https://t.co/02ONZ6D8IS #iPhone6SPlu…
souravmishra1: RT #RHIndia: "Only in art will the lion lie down with the lamb, and the rose grow without thorn." - Martin Amis #RandomAmis http://t.co/MT…
exol_lzw0112: RT #DOThFanclub: [Preview] 151009 ONE K Concert (cr.Like a star, Lovely Rose, Chibimori)
อันนยอง~~ http://t.co/w8vvE40dEK
BruhninhaD: Livro: Hugo & Rose da Editora Agir
Será o correto deixar a realidade para viver um sonho?http://t.co/OfxkKrzBog #books #book #livros #blog
This was a known issue with the twitter gem, using an updated version from GitHub solved the problem.
https://github.com/sferik/twitter/issues/709
TOTAL rookie here.
I'm working on customizing a script made by Brett Terpstra - http://brettterpstra.com/2013/11/01/save-pocket-favorites-to-nvalt-with-ifttt-and-hazel/
Mine is a different use: I'd like to save my pinboard bookmarks with a specific tag to a file in dropbox in Markdown.
I feed it a text file such as:
Title: Yesterday is over.
URL: http://www.jonacuff.com/blog/want-to-change-the-world-get-doing/
Tags: 2md, 2wcx, 2pdf
Date: June 20, 2013 at 06:20PM
Image: notused
Excerpt: You can't start the next chapter of your life if you keep re-reading the last one.
And it outputs the markdown file.
Everything works great except when the 'excerpt' (see above) is more than one line. Sometimes it's a couple of paragraphs. When that happens, it stops working. When I hit enter from the command line, it's still waiting for more input.
Here's an example of a file that it doesn't work on:
Title: Talking ’bout my Generation.
URL: http://blog.greglaurie.com/?p=8881
Tags: 2md, 2wcx, 2pdf
Date: June 28, 2013 at 09:46PM
Image: notused
Excerpt: Contrast two men from the 19th century: Max Jukes and Jonathan Edwards.
Max Jukes lived in New York. He did not believe in Christ or in raising his children in the way of the Lord. He refused to take his children to church, even when they asked to go. Of his 1,026 descendants:
•300 were sent to prison for an average term of 13 years
•190 were prostitutes
•680 were admitted alcoholics
His family, thus far, has cost the state in excess of $420,000 and has made no contribution to society.
Jonathan Edwards also lived in New York, at the same time as Jukes. He was known to have studied 13 hours a day and, in spite of his busy schedule of writing, teaching, and pastoring, he made it a habit to come home and spend an hour each day with his children. He also saw to it that his children were in church every Sunday. Of his 929 descendants:
•430 were ministers
•86 became university professors
•13 became university presidents
•75 authored good books
•7 were elected to the United States Congress
•1 was Vice President of the United States
Edwards’ family never cost the state one cent.
We tend to think that our decisions only affect ourselves, but they have ramifications for generations to come.
Here's a screenshot of what it looks like after I run the command: https://www.dropbox.com/s/i9zg483k7nkdp6f/Screenshot%202013-11-22%2016.39.17.png
I'm hoping it's something easy. Any ideas?
#!/usr/bin/env ruby
# Works with IFTTT recipe https://ifttt.com/recipes/125999
#
# Set Hazel to watch the folder you specify in the recipe.
# Make sure nvALT is set to store its notes as individual files.
# Edit the $target_folder variable below to point to your nvALT
# ntoes folder.
require 'date'
require 'open-uri'
require 'net/http'
require 'fileutils'
require 'cgi'
$target_folder = "~/Dropbox/messx/urls2md"
def url_to_markdown(url)
res = Net::HTTP.post_form(URI.parse("http://heckyesmarkdown.com/go/"),{'u'=>url,'read'=>'1'})
if res.code.to_i == 200
res.body
else
false
end
end
file = ARGV[0]
begin
input = IO.read(file).force_encoding('utf-8')
headers = {}
input.each_line {|line|
key, value = line.split(/: /)
headers[key] = value.strip || ""
}
outfile = File.join(File.expand_path($target_folder), headers['Title'].gsub(/["!*?'|]/,'') + ".txt")
date = Time.now.strftime("%Y-%m-%d %H:%M")
date_added = Date.parse(headers['Date']).strftime("%Y-%m-%d %H:%M")
content = "Title: #{headers['Title']}\nDate: #{date}\nDate Added: #{date_added}\nSource: #{headers['URL']}\n"
tags = false
if headers['Tags'].length > 0
tag_arr = header s['Tags'].split(", ")
tag_arr.map! {|tag|
%Q{"#{tag.strip}"}
}
tags = tag_arr.join(" ")
content += "Keywords: #{tags}\n"
end
markdown = url_to_markdown(headers['URL']).force_encoding('utf-8')
if markdown
content += headers['Image'].length > 0 ? "\n\n> #{headers['Excerpt']}\n\n---#{markdown}\n" : "\n\n"+markdown
else
content += headers['Image'].length > 0 ? "\n\n\n\n#{headers['Excerpt']}\n" : "\n\n"+headers['Excerpt']
end
File.open(outfile,'w') {|f|
f.puts content
}
if tags && File.exists?("/usr/local/bin/openmeta")
%x{/usr/local/bin/openmeta -a #{tags} -p "#{outfile}"}
end
# FileUtils.rm(file)
rescue Exception => e
puts e
end
How about this? Modify your input.each_line area accordingly:
headers = {}
key = nil
input.each_line do |line|
match = /^(?<key>\w+)\s*:\s*(?<value>.*)/.match(line)
value = line
if match
key = match[:key].strip
headers[key] = match[:value].strip
else
headers[key] += line
end
end
First, splitting on just ":" is dangerous since that can be in content. Instead, a (simplified from code) regex of /^\w+:.*/ will match "Word: Content". Since the lines after the "Excerpt:" aren't prefixed, you need to hang on to the last seen key, and just append if there's no key for this line. You may need to add a newline in there, depending on what you're doing with that header information, but it seems to work.
I'm a Java guy, new to Ruby. I've been playing with it just to see what it can do, and I'm running into an issue that I can't solve.
I decided to try out Sinatra, again, just to see what it can do, and decided to play with the ESPN API and see if I can pull the venue of a team via the API.
I'm able to make the call and get the data back, but I am having trouble parsing it:
{"sports"=>[{"name"=>"baseball", "id"=>1, "uid"=>"s:1", "leagues"=>[{"name"=>"Major League Baseball", "abbreviation"=>"mlb", "id"=>10, "uid"=>"s:1~l:10", "groupId"=>9, "shortName"=>"MLB", "teams"=>[{"id"=>17, "uid"=>"s:1~l:10~t:17", "location"=>"Cincinnati", "name"=>"Reds", "abbreviation"=>"CIN", "color"=>"D60042", "venues"=>[{"id"=>83, "name"=>"Great American Ball Park", "city"=>"Cincinnati", "state"=>"Ohio", "country"=>"", "capacity"=>0}], "links"=>{"api"=>{"teams"=>{"href"=>"http://api.espn.com/v1/sports/baseball/mlb/teams/17"}, "news"=>{"href"=>"http://api.espn.com/v1/sports/baseball/mlb/teams/17/news"}, "notes"=>{"href"=>"http://api.espn.com/v1/sports/baseball/mlb/teams/17/news/notes"}}, "web"=>{"teams"=>{"href"=>"http://espn.go.com/mlb/team/_/name/cin/cincinnati-reds?ex_cid=espnapi_public"}}, "mobile"=>{"teams"=>{"href"=>"http://m.espn.go.com/mlb/clubhouse?teamId=17&ex_cid=espnapi_public"}}}}]}]}], "resultsOffset"=>0, "resultsLimit"=>50, "resultsCount"=>1, "timestamp"=>"2013-08-04T14:47:13Z", "status"=>"success"}
I want to pull the venues part of the object, specifically the name value. Every time I try to parse it I end up getting an error along the lines of "cannot change from nil to string" and then also I've gotten an integer to string error.
Here's what i have so far:
get '/venue/:team' do
id = ids[params[:team]]
url = 'http://api.espn.com/v1/sports/baseball/mlb/teams/' + id + '?enable=venues&apikey=' + $key
resp = Net::HTTP.get_response(URI.parse(url))
data = resp.body
parsed = JSON.parse(resp.body)
#venueData = parsed["sports"]
"Looking for the venue of the #{params[:team]}, which has id " + id + ", and here's the data returned: " + venueData.to_s
end
When I do parsed["sports"} I get:
[{"name"=>"baseball", "id"=>1, "uid"=>"s:1", "leagues"=>[{"name"=>"Major League Baseball", "abbreviation"=>"mlb", "id"=>10, "uid"=>"s:1~l:10", "groupId"=>9, "shortName"=>"MLB", "teams"=>[{"id"=>17, "uid"=>"s:1~l:10~t:17", "location"=>"Cincinnati", "name"=>"Reds", "abbreviation"=>"CIN", "color"=>"D60042", "venues"=>[{"id"=>83, "name"=>"Great American Ball Park", "city"=>"Cincinnati", "state"=>"Ohio", "country"=>"", "capacity"=>0}], "links"=>{"api"=>{"teams"=>{"href"=>"http://api.espn.com/v1/sports/baseball/mlb/teams/17"}, "news"=>{"href"=>"http://api.espn.com/v1/sports/baseball/mlb/teams/17/news"}, "notes"=>{"href"=>"http://api.espn.com/v1/sports/baseball/mlb/teams/17/news/notes"}}, "web"=>{"teams"=>{"href"=>"http://espn.go.com/mlb/team/_/name/cin/cincinnati-reds?ex_cid=espnapi_public"}}, "mobile"=>{"teams"=>{"href"=>"http://m.espn.go.com/mlb/clubhouse?teamId=17&ex_cid=espnapi_public"}}}}]}]}]
But nothing else parses. Please help!
Like I said, I'm not trying to do anything fancy, just figure out Ruby a little for fun, but I have been stuck on this issue for days now. Any help would be appreciated!
EDIT:
JSON straight from the API:
{"sports" :[{"name" :"baseball","id" :1,"uid" :"s:1","leagues" :[{"name" :"Major League Baseball","abbreviation" :"mlb","id" :10,"uid" :"s:1~l:10","groupId" :9,"shortName" :"MLB","teams" :[{"id" :17,"uid" :"s:1~l:10~t:17","location" :"Cincinnati","name" :"Reds","abbreviation" :"CIN","color" :"D60042","venues" :[{"id" :83,"name" :"Great American Ball Park","city" :"Cincinnati","state" :"Ohio","country" :"","capacity" :0}],"links" :{"api" :{"teams" :{"href" :"http://api.espn.com/v1/sports/baseball/mlb/teams/17"},"news" :{"href" :"http://api.espn.com/v1/sports/baseball/mlb/teams/17/news"},"notes" :{"href" :"http://api.espn.com/v1/sports/baseball/mlb/teams/17/news/notes"}},"web" :{"teams" :{"href" :"http://espn.go.com/mlb/team/_/name/cin/cincinnati-reds?ex_cid=espnapi_public"}},"mobile" :{"teams" :{"href" :"http://m.espn.go.com/mlb/clubhouse?teamId=17&ex_cid=espnapi_public"}}}}]}]}],"resultsOffset" :0,"resultsLimit" :50,"resultsCount" :1,"timestamp" :"2013-08-05T19:44:32Z","status" :"success"}
The result of data.inspect:
"{\"sports\" :[{\"name\" :\"baseball\",\"id\" :1,\"uid\" :\"s:1\",\"leagues\" :[{\"name\" :\"Major League Baseball\",\"abbreviation\" :\"mlb\",\"id\" :10,\"uid\" :\"s:1~l:10\",\"groupId\" :9,\"shortName\" :\"MLB\",\"teams\" :[{\"id\" :17,\"uid\" :\"s:1~l:10~t:17\",\"location\" :\"Cincinnati\",\"name\" :\"Reds\",\"abbreviation\" :\"CIN\",\"color\" :\"D60042\",\"venues\" :[{\"id\" :83,\"name\" :\"Great American Ball Park\",\"city\" :\"Cincinnati\",\"state\" :\"Ohio\",\"country\" :\"\",\"capacity\" :0}],\"links\" :{\"api\" :{\"teams\" :{\"href\" :\"http://api.espn.com/v1/sports/baseball/mlb/teams/17\"},\"news\" :{\"href\" :\"http://api.espn.com/v1/sports/baseball/mlb/teams/17/news\"},\"notes\" :{\"href\" :\"http://api.espn.com/v1/sports/baseball/mlb/teams/17/news/notes\"}},\"web\" :{\"teams\" :{\"href\" :\"http://espn.go.com/mlb/team/_/name/cin/cincinnati-reds?ex_cid=espnapi_public\"}},\"mobile\" :{\"teams\" :{\"href\" :\"http://m.espn.go.com/mlb/clubhouse?teamId=17&ex_cid=espnapi_public\"}}}}]}]}],\"resultsOffset\" :0,\"resultsLimit\" :50,\"resultsCount\" :1,\"timestamp\" :\"2013-08-05T19:44:24Z\",\"status\" :\"success\"}"
parsed["sports"] does not exist, parse your input and inspect it/ dump it
With the data you've provided in the question, you can get to the venues information like this:
require 'json'
json = JSON.parse data
json["sports"].first["leagues"].first["teams"].first["venues"]
# => [{"id"=>83, "name"=>"Great American Ball Park", "city"=>"Cincinnati", "state"=>"Ohio", "country"=>"", "capacity"=>0}]
By replacing each of the first calls with an iterator, you can search through without knowing where the data is:
json["sports"].each{|h|
h["leagues"].each{|h|
h["teams"].each{|h|
venues = h["venues"].map{|h| h["name"]}.join(", ")
puts %Q!name: #{h["location"]} #{h["name"]} venues: #{venues}!
}
}
}
This outputs:
name: Cincinnati Reds venues: Great American Ball Park
Depending on how stable the response data is you may be able to cut out several of the iterators:
json["sports"].first["leagues"]
.first["teams"]
.each{|h|
venues = h["venues"].map{|h| h["name"] }.join(", ")
puts %Q!name: #{h["location"]} #{h["name"]} venues: #{venues}!
}
and you'll most likely want to save the data, so something like each_with_object is helpful:
team_and_venues = json["sports"].first["leagues"]
.first["teams"]
.each_with_object([]){|h,xs|
venues = h["venues"].map{|h| h["name"]}.join(", ")
xs << %Q!name: #{h["location"]} #{h["name"]} venues: #{venues}!
}
# => ["name: Cincinnati Reds venues: Great American Ball Park"]
team_and_venues
# => ["name: Cincinnati Reds venues: Great American Ball Park"]
Notice that when an iterator declares variables, even if there is a variable with the same name outside the block, the scope of the block is respected and the block's variables remain local.
That's some pretty ugly code if you ask me, but it's a place to start.
This is my code:
doc= Nokogiri::HTML(open("http://www.cincinnatisun.com/index.php?rss/90d24f4ad98a2793", 'User-Agent' => 'ruby'))
search=doc.css('item')
if !search.blank?
search.each do |data|
title=data.css("title").text
link=data.css("link").text
end
end
but I did not get the link.
Several things are wrong:
if !search.blank?
won't work because search would be a NodeSet returned by doc.css. NodeSet's don't have a blank? method. Perhaps you meant empty??
title=data.css("title").text
isn't the correct way to find the title because, like in the above problem, you're getting a NodeSet instead of a Node. Getting text from a NodeSet can return a lot of garbage you don't want. Instead do:
title=data.at("title").text
Changing the code to this:
require 'nokogiri'
require 'open-uri'
doc= Nokogiri::HTML(open("http://www.cincinnatisun.com/index.php?rss/90d24f4ad98a2793", 'User-Agent' => 'ruby'))
search=doc.css('item')
if !search.empty?
search.each do |data|
title=data.at("title").text
link=data.at("link").text
puts "title: #{ title } link: #{ link }"
end
end
Outputs:
title: Ex-Bengals cheerleaders lawsuit trial to begin link:
title: Freedom Center Offering Free Admission Monday link:
title: Miami University Band Performing in the Inaugural Parade link:
title: Northern Kentucky Man To Present Colors At Inauguration link:
title: John Gumms Monday Forecast link:
title: President Obama VP Biden sworn in officially begin second terms link:
title: Colerain Township Pizza Hut Robbed Saturday Night link:
title: Cold Snap Coming to Tri-State link:
title: 2 Men Arrested After Police Chase in Northern Kentucky link:
The link won't work because the XML is malformed, which, in my experience, is unbelievably common on the internet because people don't take the time to check their work.
The fix is going to take massaging the XML prior to Nokogiri receiving the content, or to modify your accessors. Luckily, this particular XML is easy to work around so this should help:
require 'nokogiri'
require 'open-uri'
doc = Nokogiri::HTML(open("http://www.cincinnatisun.com/index.php?rss/90d24f4ad98a2793", 'User-Agent' => 'ruby'))
search = doc.css('item')
if !search.empty?
search.each do |data|
title = data.at("title").text
link = data.at("link").next_sibling.text
puts "title: #{ title } link: #{ link }"
end
end
Which outputs:
title: Ex-Bengals cheerleaders lawsuit trial to begin link: http://www.cincinnatisun.com/index.php/sid/212072454/scat/90d24f4ad98a2793
title: Freedom Center Offering Free Admission Monday link: http://www.cincinnatisun.com/index.php/sid/212072914/scat/90d24f4ad98a2793
title: Miami University Band Performing in the Inaugural Parade link: http://www.cincinnatisun.com/index.php/sid/212072915/scat/90d24f4ad98a2793
title: Northern Kentucky Man To Present Colors At Inauguration link: http://www.cincinnatisun.com/index.php/sid/212072913/scat/90d24f4ad98a2793
title: John Gumms Monday Forecast link: http://www.cincinnatisun.com/index.php/sid/212070535/scat/90d24f4ad98a2793
title: President Obama VP Biden sworn in officially begin second terms link: http://www.cincinnatisun.com/index.php/sid/212060033/scat/90d24f4ad98a2793
title: Colerain Township Pizza Hut Robbed Saturday Night link: http://www.cincinnatisun.com/index.php/sid/212057132/scat/90d24f4ad98a2793
title: Cold Snap Coming to Tri-State link: http://www.cincinnatisun.com/index.php/sid/212057131/scat/90d24f4ad98a2793
title: 2 Men Arrested After Police Chase in Northern Kentucky link: http://www.cincinnatisun.com/index.php/sid/212057130/scat/90d24f4ad98a2793
All that done, you can write your code more clearly like:
require 'nokogiri'
require 'open-uri'
doc = Nokogiri::HTML(open("http://www.cincinnatisun.com/index.php?rss/90d24f4ad98a2793", 'User-Agent' => 'ruby'))
doc.css('item').each do |data|
title = data.at("title").text
link = data.at("link").next_sibling.text
puts "title: #{ title } link: #{ link }"
end
Interestingly enough, now the sample page appears to have its links fixed.
According to http://nokogiri.org/tutorials/searching_a_xml_html_document.html something like:
#doc = Nokogiri::XML(File.read("feed.xml"))
#doc.xpath('//xmlns:link')
should do the job. But be aware, that your provided xml snippet isn't a valid xml feed at all (no root element, item tag not opened - only closed etc.). The code assumes the xml feed looks i.e.
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<item>
<title>Atom-Powered Robots Run Amok</title>
<link>http://example.org/2003/12/13/atom03</link>
</item>
</feed>
And extracts:
<link>http://example.org/2003/12/13/atom03</link>
as result. Please try to to look at the documentation/reference first, if you have problems like this. If you tried something and it didn't worked like you would expect, than you can consult stackoverflow with actual code - that makes it easier to understand your problem & provide help.
When searching Amazon using their API is there a way to separate out hardcover, paperback, kindle and preorderable books?
I'm using Ruby and Amazon Product gem and have been searching through their documentation looking for info on this and haven't managed to find anything yet.
update:
I have come across some starting points that I am working through. There seems to a way to get this information via RrelatedItems ResponseGroup as described here. The KindleStore hierarchy seems relevant.
update II:
Binding is possibly the field I need to somehow look at and amazon's API provides an way of getting to AlternateVersions of an ASIN using the AlternativeVersion ResponseGroup type for books.
I will assume you know how to set up the Amazon Product gem request object correctly. from there, you can do...
search = req.search( 'Ender\'s Game' )
search.each('Item') do |item|
asin = item["ASIN"]
title = item['ItemAttributes']['Title']
hash = {
:response_group => ['ItemAttributes']
}
items = req.find( asin, hash )
items.each('Item') do |ia|
puts "[#{asin}]: #{title} => [#{ia['ItemAttributes']['Binding']}]"
end
end
which produces output like
[0812550706]: Ender's Game (Ender, Book 1) => [Mass Market Paperback]
[0765362430]: The Ender Quartet Box Set: Ender's Game, Speaker for the Dead, Xenocide, Children of the Mind => [Mass Market Paperback]
[0812550757]: Speaker for the Dead (Ender, Book 2) => [Mass Market Paperback]
[0765342405]: Ender's Shadow (Ender, Book 5) => [Paperback]
[B003G4W49C]: Ender's Game => [Kindle Edition]
[0785135820]: Ender's Game: Command School => [Hardcover]
[0785135804]: Ender's Game: Battle School (Ender's Game Gn) => [Hardcover]
[0765362449]: The Ender's Shadow Series Box Set: Ender's Shadow, Shadow of the Hegemon, Shadow Puppets, Shadow of the Giant => [Paperback]
[0785136096]: Ender's Game: Formic Wars: Burning Earth => [Hardcover]
[0812565959]: Shadow of the Hegemon (Ender, Book 6) => [Mass Market Paperback]
You could try looking at the BrowseNodes. For example if you see the kindle store BrowseNode you know it's a kindle book.