如何在Ruby中访问此JSON API数据？

Question

我正在编写一个简短的Ruby程序,它将采用一个邮政编码并返回该邮政编码2英里范围内的城市名称.我成功调用了API并能够解析JSON数据,但我不确定如何访问"city"键.

url = API call (not going to replicate here since it requires a key)

uri = URI(url)

response = Net::HTTP.get(uri)
JSON.parse(response)

这是我的JSON的样子.

{
  "results": [
    {
      "zip": "08225",
      "city": "Northfield",
      "county": "Atlantic",
      "state": "NJ",
      "distance": "0.0"
    },
    {
      "zip": "08221",
      "city": "Linwood",
      "county": "Atlantic",
      "state": "NJ",
      "distance": "1.8"
    }
  ]
}

我一直试图像这样访问'城市':

response['result'][0]['city']

这似乎是不正确的.也试过了

response[0][0]['city'] 

以及相同代码的其他几种排列.

如何从JSON数据中获取值'Northfield'？

Answer 1

你几乎就在那里,只需使用results而不是result结果JSON.parse(response)而不是response:

JSON.parse(response)["results"][0]["city"]
#=> "Northfield"