CODEWITHSUNDEEP
ruby
Jacck Mark
Jacck Mark

Reputation: 147

Searching (filtering) JSON array with 'key == value' condition

I have problem with searching for specific objects in array in ruby.

I've made a request to https://jsonplaceholder.typicode.com/todos from where I get result JSON. I am trying to convert it to array of objects and then search for occurrences (I know that I can make a request with parameters and it will resolve my problems, but I do not have access to the backend).

I was trying to print objects in array containing some (specific) value in a termial and to get boolean value saying whether the string is present in array or not (I was also trying to find answer to my question on stack (this seems be the closest to my problem Ruby find and return objects in an array based on an attribute but didn't help me much).

client = HTTPClient.new
method = 'GET'
url = URI.parse 'https://jsonplaceholder.typicode.com/todos'
res = client.request method, url
dd = JSON.parse(res.body)
puts dd.select { |word| word.completed == false }
puts dd.include?('temporibus atque distinctio omnis eius impedit tempore molestias pariatur')

Actual results:

no result at all for select and false returned from include?

Expected result:

select should put to terminal objects with completed equal false;

and include? should return true if value provided as parameter is present in the array

Upvotes: 3

Views: 1704

Answers (1)

EugZol
EugZol

Reputation: 6555

Here's working code snippet:

require 'httpclient'
require 'json'

client = HTTPClient.new
method = 'GET'
url = URI.parse 'https://jsonplaceholder.typicode.com/todos'
res = client.request method, url
dd = JSON.parse(res.body)

# Use word['completed'] instead of word.completed here:
puts dd.select { |word| !word['completed'] }

# Use 'any?' array (Enumerable) method to check
# if any member of the array satisfies given condition:
puts dd.any? { |word| word['title'] == 'temporibus atque distinctio omnis eius impedit tempore molestias pariatur' }

Documentation for #any? could be found here: https://apidock.com/ruby/Enumerable/any%3F

Upvotes: 2

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