CODEWITHSUNDEEP
rubynokogiri
Subtonix
Subtonix

Reputation: 117

How to extract data returned from array of hashes from API

I wrote a small program to interact with the Indeed Ruby API.

I can print a single job title, but would like to loop through them all.

Here is the code: 

require 'nokogiri'
require 'indeed-ruby'

client = Indeed::Client.new ("PUBLISHER_KEY_GOES_HERE")

params = {
  :q => 'python',
  :l => 'vancouver',
  :userip => '1.2.3.4',
  :useragent => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2)',
  :jobkeys => ["JOB_KEY_A", "JOB_KEY_B"] 
}

data = client.search(params)

# loop through all results and print the job title
data.each do |d|
  puts d["results"]["jobtitle"]
end

The each loop returns this error message: 

i.rb:23:in `[]': no implicit conversion of String into Integer (TypeError)
from i.rb:23:in `block in <main>'
from i.rb:22:in `each'
from i.rb:22:in `<main>'

I assume this error message is saying it's trying to find an integer where I am putting a string in either ["results"] or ["jobtitle"].

This line works, and prints a job title: 

puts data["results"][0]["jobtitle"]

This implies I can access the 0th element of the results hash, and then access the jobtitle attribute.

I want to the loop to run like this and print 3 job titles: 

puts data["results"][0]["jobtitle"]
puts data["results"][1]["jobtitle"]
puts data["results"][2]["jobtitle"]

I'm not sure how to put an [i] counter in the loop if it's expecting an integer.

Here is what the data looks like coming back from the Indeep API: 

{"version"=>2,
 "query"=>"python",
 "location"=>"vancouver",
 "paginationPayload"=>"",
 "radius"=>25,
 "dupefilter"=>true,
 "highlight"=>true,
 "totalResults"=>483,
 "start"=>1,
 "end"=>10,
 "pageNumber"=>0,
 "results"=>
  [{"jobtitle"=>"Junior Software Developer",
    "company"=>"LaunchCode",
    "city"=>"Portland",
    "state"=>"OR",
    "country"=>"US",
    "formattedLocation"=>"Portland, OR",
    "source"=>"LaunchCode",
    "date"=>"Fri, 03 Feb 2017 04:10:27 GMT",
    "snippet"=>
     "Familiarity with an at least one imperative (Java, JavaScript,   PHP, C#, Objective-C, C/C++, <b>Python</b>, Ruby, etc.). Don’t have a CS   degree?...",
    "url"=>
     "http://www.indeed.com/viewjob?jk=9f75f0ea8825e3a8&qd=X0KuMlb--hp3Z0o2UU7dJOXoIlOcgm8VSZO61KKa0UOtGpLfFk1WY111OhfFWzZjMBRv9LrdGhB8olLNQGabmQRFit3-lRPP9j12GNvnf88&indpubnum=4334069173238194&atk=1b87s51b1a0kqb7s",
    "onmousedown"=>"indeed_clk(this,'782');",
    "jobkey"=>"9f75f0ea8825e3a8",
    "sponsored"=>false,
    "expired"=>false,
    "indeedApply"=>false,
    "formattedLocationFull"=>"Portland, OR",
    "formattedRelativeTime"=>"2 days ago",
    "stations"=>""},

It looks like the response from the Indeed API is a hash, but the value for the "results" key is an array inside the hash.

The response below from Ursus works:

This also worked: 

for i in 1...10
   puts data["results"][i]["jobtitle"]
end

Here is the output: 

Junior Software Developer
Data Scientist
Python Developer
Python Automation Developer - Hillsboro, OR
Computer Vision Engineer
Python Web Engineer
EMS Network Applications Engineer II
Software Engineer
Python Developer (full-stack)
Electrical Engineer, EMS Network Applications

Upvotes: 0

Views: 256

Answers (1)

Ursus
Ursus

Reputation: 30056

So, data["results"] is an array. In ruby, you don't need an index to go through an array. You can do something like

[1, 2, 3].each do |i|
  puts i
end

In your case,

data["results"].each do |item|
  puts item["jobtitle"]
end

Upvotes: 1

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