Convert Array to JSON, with Same Key, in Ruby - ruby

Question

I'm trying to parse an array of hashes, grab a value from a specific key, and output to json with one predefined key for each value - and I'm stuck.
Array:
[{:object_id=>"jon-59",
:name=>"jon-59-gw (8db8fcae-055a-4b35-9f8f-739b68c0bd5d)",
:client_handle=>nil,
:extended_attributes=>nil,
:appliances_summary=>
{:vm_version=>"5.5.3",
:vm_build_info=>"5.5.3-2135647"},
:hypervisor_assist=>false,
:allowed_actions=>
{:string=>
["Change Log Level",
"Edit Dns",
"Edit Syslog"]},
:edge_assist_id=>"0"},
{:object_id=>"jon-60",
:name=>"jon-60-gw (d63ddc45-gd3c-40c3-9046-e7afa996934a)",
:client_handle=>nil,
:extended_attributes=>nil,
:appliances_summary=>
{:vm_version=>"5.5.3",
:vm_build_info=>"5.5.3-2168697"},
:hypervisor_assist=>false,
:allowed_actions=>
{:string=>
["Change Log Level",
"Edit Dns",
"Edit Syslog"]},
:edge_assist_id=>"0"}]
Desired Output
{
"data":[
{ "{#JONNAME}":"jon-59-gw" },
{ "{#JONNAME}":"jon-60-gw"},
]
}
Where I'm at:
def jon_discover
jon_summary.sort_by { |jon| jon[:object_id] }.each do |jon|
name = jon[:name].slice!(/\A\S*/)
my_hash = {'{#JONNAME}' => name}
puts JSON.generate(my_hash)
end
end
The above returns:
{ "{#JONNAME}":"jon-59-gw" }
{ "{#JONNAME}":"jon-60-gw" }
But I don't know where to take it from here, or if I'm on the right track. How can I get this into the desired output?
Thanks, cheers!

Answer 1

This is too complex:
my_hash = {"{#JONNAME}" => "#{name}"}
Keep it simple:
my_hash = {JONNAME => name}
the data is for Zabbix low level discovery
Then use single-quotes instead of double quotes for the key and use the bare name for the value:
my_hash = {'{#JONNAME}' => name}
so it's more apparent that {# is not a typo.
Instead of:
"jon-60-gw (d63ddc45-gd3c-40c3-9046-e7afa996934a)".slice!(/\A\S*/) # => "jon-60-gw"
Use:
"jon-60-gw (d63ddc45-gd3c-40c3-9046-e7afa996934a)".split.first # => "jon-60-gw"
Putting it all together:
require 'json'
ary = [
{
:object_id => "jon-59",
:name => "jon-59-gw (8db8fcae-055a-4b35-9f8f-739b68c0bd5d)",
:client_handle => nil,
:extended_attributes => nil,
:appliances_summary =>
{
:vm_version => "5.5.3",
:vm_build_info => "5.5.3-2135647"
},
:hypervisor_assist => false,
:allowed_actions => {
:string => ["Change Log Level", "Edit Dns", "Edit Syslog"]
},
:edge_assist_id => "0"
},
{
:object_id => "jon-60",
:name => "jon-60-gw (d63ddc45-gd3c-40c3-9046-e7afa996934a)",
:client_handle => nil,
:extended_attributes => nil,
:appliances_summary => {
:vm_version => "5.5.3",
:vm_build_info => "5.5.3-2168697"
},
:hypervisor_assist => false,
:allowed_actions => {
:string => ["Change Log Level", "Edit Dns", "Edit Syslog"]
},
:edge_assist_id => "0"
}
]
Here's how to walk through the data:
data = ary.map{ |hash|
{
'{#JONNAME}' => hash[:name].split.first
}
}
Here's how to generate the JSON:
puts JSON[{'data' => data}]
# >> {"data":[{"{#JONNAME}":"jon-59-gw"},{"{#JONNAME}":"jon-60-gw"}]}
If you need it sorted:
puts JSON[{'data' => data.sort_by{ |s| s['{#JONNAME}'] }}]
# >> {"data":[{"{#JONNAME}":"jon-59-gw"},{"{#JONNAME}":"jon-60-gw"}]}