How to search a JSON hash using a Regex? - json

Question

I'm using an API to return all Macros to me, I am trying to return all the "macros" where "actions" contains a "value" matching my Regexp Pattern which I will link below.
I've tried below and other methods, but it returns me nil for present values. Any tips appreciated
macros["value"].select { |m| m['key'] == 'value' }.first['/^DE([0-9a-zA-Z]\s?){20}$/gm']
API result snippet:
jsObj
=> {"macros"=>
[{"url"=>"https://s/1900002708354.json",
"id"=>1900002708354,
"title"=>"Append Signature",
"active"=>true,
"updated_at"=>"2021-10-22T14:11:15Z",
"created_at"=>"2021-10-22T14:11:15Z",
"position"=>10001,
"description"=>"This macro appends a signature to the message ",
"actions"=>[{"field"=>"comment_value_html", "value"=>"<p>Mit besten Grüßen,</p><p>{{current_user.name}} [{{ticket.account}}] <br></p><p><br></p><p>{{dc.signature_email}}<br></p><p><br></p>"}],
"restriction"=>nil},
{"url"=>"949.json",
"id"=>59071949,
"title"=>"information",
"description"=>nil,
"actions"=>[{"field"=>"priority", "value"=>"low"}, {"field"=>"comment_value", "value"=>"DE89370400440532013000" "DE89 3704
0044 0532 0130 00"
"}],
"restriction"=>nil},
Desired Result:
{
"macros": [
{
"url": "x.json",
"id": 1900002708354,
"actions": [
{
"field": "comment_value_html",
"value": "DE89 3704 0044 0532 0130 00"
}
],
"restriction": null
},
{
"url": "x.json",
"id": 59071949,
"actions": [
{
"field": "priority",
"value": "low"
},
{
"field": "comment_value",
"value": "DE89 3704 0044 0532 0130 00
"
}
],
"restriction": null
},

Answer 1

Given that macros is the JSON object containing the macros data, you can use
macros.select { |m| m["actions"].any? { |w| /\ADE(?:[0-9a-zA-Z]\s?){20}\z/.match?(w["value"]) } }
Here is a Ruby demo:
require 'json'
j = <<-DATA
{
"macros": [
{
"url": "x.json",
"id": 1900002708354,
"actions": [
{
"field": "comment_value_html",
"value": "DE11111111111222222220"
}
],
"restriction": null
},
{
"url": "x.json",
"id": 59071949,
"actions": [
{
"field": "priority",
"value": "low"
},
{
"field": "comment_value",
"value": "DE12345678901234567890"
}
],
"restriction": null
}
]}
DATA
jsObj = JSON.parse(j)
macros = jsObj['macros']
puts jsObj['macros'].select { |m| m["actions"].any? { |w| /\ADE(?:[0-9a-zA-Z]\s?){20}\z/.match?(w["value"]) } }
Output:
{"url"=>"x.json", "id"=>1900002708354, "actions"=>[{"field"=>"comment_value_html", "value"=>"DE11111111111222222220"}], "restriction"=>nil}
{"url"=>"x.json", "id"=>59071949, "actions"=>[{"field"=>"priority", "value"=>"low"}, {"field"=>"comment_value", "value"=>"DE12345678901234567890"}], "restriction"=>nil}
The .select { |m| m["actions"].any? { |w| /\ADE(?:[0-9a-zA-Z]\s?){20}\z/.match?(w["value"]) } } main part gets all actions nodes that contain an array with a value key whose value matches the regex given.