Deserialize RESTSharp JSON Response

Question

I'm working on a project to gather data from NOAA. I'm having trouble figuring out how to make the response usable.

This is what NOAA's API response looks like to my call:

{
    "metadata": {
        "resultset": {
            "offset": 1,
            "count": 38859,
            "limit": 2
        }
    },
    "results": [
        {
            "mindate": "1983-01-01",
            "maxdate": "2019-12-24",
            "name": "Abu Dhabi, AE",
            "datacoverage": 1,
            "id": "CITY:AE000001"
        },
        {
            "mindate": "1944-03-01",
            "maxdate": "2019-12-24",
            "name": "Ajman, AE",
            "datacoverage": 0.9991,
            "id": "CITY:AE000002"
        }
    ]
}

I used JSON2CSharp.com to convert the result set into my needed classes. Below is the relevant code:

public class NOAA
{
    public class Resultset
    {
        public int offset { get; set; }
        public int count { get; set; }
        public int limit { get; set; }
    }

    public class Metadata
    {
        public Resultset resultset { get; set; }
    }
    public class Location
    {
        public string mindate { get; set; }
        public string maxdate { get; set; }
        public string name { get; set; }
        public double datacoverage { get; set; }
        public string id { get; set; }
    }
    public class RootObject
    {
        public Metadata metadata { get; set; }
        public List<Location> results { get; set; }
    }
    public class Response
    {
        IList<Metadata> metadata;
        IList<Location> results;
    }
    public void RestFactory(string Token, string Endpoint, Dictionary<string, string> Params)
    {
        // Initiate the REST request
        var client = new RestClient("https://www.ncdc.noaa.gov/cdo-web/api/v2/" + Endpoint);
        var request = new RestRequest(Method.GET);

        // Add the token
        request.AddHeader("token", Token);

        // Add the parameters
        foreach (KeyValuePair<string, string> entry in Params)
        {
            request.AddParameter(entry.Key, entry.Value);
        }

        // Execute the REST request
        var response = client.Execute(request);

        // Deserialize the response
        Response noaa = new JsonDeserializer().Deserialize<Response>(response);

        // Print to console
        foreach (Location loc in noaa)
        {
            Console.WriteLine(loc.name);
        }
    }
}

At this point, I'm just trying to print the location name to reach my next learning milestone. I'm getting the error:

Severity    Code    Description Project File    Line    Suppression State
Error   CS1579  foreach statement cannot operate on variables of type 'NOAA.Response' because    'NOAA.Response' does not contain a public instance definition for 'GetEnumerator'

Other than the error, I think I don't quite understand the proper approach since the response has more than one "layer". Guidance?

Answer 1

Your foreach loop is trying to call an iterator on the object itself, not the list inside it.

Try this instead

        foreach (Location loc in noaa.results)
        {
            Console.WriteLine(loc.name);
        }