I'm struggling to represent this JSON as C# class structures (snipped for brevity):

{
  "subdomain_count": 1118434,
  "hostname": "google.com",
  "endpoint": "/v1/domain/google.com",
  "current_dns": {
    "txt": {
      "values": [
        {
          "value": "v=spf1 include:_spf.google.com ~all"
        },
        {
          "value": "MS=E4A68B9AB2BB9670BCE15412F62916164C0B20BB"
        }
      ],
      "first_seen": "2021-04-22"
    },
  },
  "apex_domain": "google.com",
  "alexa_rank": 1
}

I'm looking for help on how to represent this deeply-nested portion:

 "current_dns": {
    "txt": {
      "values": [
        {
          "value": "v=spf1 include:_spf.google.com ~all"
        },

I've tried various combinations like List<List<string>> and Dictionary<Dictionary<List<string>, string>, string> without any luck.

CodePudding user response：

It's not uniform. You have

• .current_dns.txt.values is an array
• .current_dns.txt.first_seen is a string.

So no generic dictionary/list combination will do.

• { "txt": ... } is a JSON object. Those normally represent one of two things:

  • A dictionary (e.g. Dictionary)
  • A struct (e.g. struct, class)

  Without additional information about the JSON format, some guess work is needed here. Since TXT is one of many DNS record types, I presume current_dns is a collection of info grouped by DNS record type. As such, I think a Dictionary would work best here, but there's room for interpretation and preference.

• { "values": [ ... ], "first_seen": "2021-04-22" } is also a JSON object. But this is clearly not a dictionary since the values have different types. (It's "not uniform".) We're going to have to build a struct or class.

• [ ... ] is a JSON array. List is the go-to choice for those.

• { "value": "v=spf1 include:_spf.google.com ~all" } is yet another JSON object. It looks like it always has the singular key value, so we'll use a class for it.

This gets us the following:

public class DnsResultValue {
   public string value { get; set; }
}

public class DnsResult {
   public List<DnsResultValue> values     { get; set; }
   public string               first_seen { get; set; }
}

public Dictionary<string, DnsResult> current_dns { get; set; }

CodePudding user response：

Dictionary<string, Dictionary<string, Dictionary<string, string>[]>>