JSON string pulled via net/http to Hash - json

Question

I'm trying to pull JSON from a Yahoo API to get the conversion rate of USD to SEK. However, I can't seem to get the JSON converted to a Hash, it shows "query" as being the only key since JSON comes in as one string.
The JSON request returns:
{"query":{"count":1,"created":"2016-12-04T13:06:00Z","lang":"en-us","results":{"rate":{"id":"USDSEK","Name":"USD/SEK","Rate":"9.1900","Date":"12/2/2016","Time":"9:59pm","Ask":"9.2000","Bid":"9.1900"}}}}
My code is as follow:
require 'net/http'
require 'json'
url = 'https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.xchange%20where%20pair%20in%20(%22USDSEK%22)&format=json&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys&callback='
uri = URI(url)
response = Net::HTTP.get(uri)
json_hash= JSON.parse(response)
puts json_hash["Rate"]
the puts statement returns 'nil'
I've tried following an example from this site, however I do not yield the same results based on the way my data is being brought as his is being statically entered.
*Note I am not using 'ostruct', trying simply with json.
Thank you for any insight.

Answer 1

As you can see, the field you are looking for is into an inner hash. Try
puts json_hash["query"]["results"]["rate"]["Rate"]

Answer 2

Have you check the structure of your json?
{
"query": {
"count": 1,
"created": "2016-12-04T13:06:00Z",
"lang": "en-us",
"results": {
"rate": {
"id": "USDSEK",
"Name": "USD/SEK",
"Rate": "9.1900",
"Date": "12/2/2016",
"Time": "9:59pm",
"Ask": "9.2000",
"Bid": "9.1900"
}
}
}
}
To fetch the rate key you should do something like:
json_hash["query"]["results"]["rate"]
Compare that with json above to understand your problem.