C# - Parsing JSON with JObject - Incorrect JSON Format

I am currently handling an API that returns JSON data.

There is a method in place that calls the API and extracts the necessary nodes from the JSON response.

Everything has been working smoothly so far, but the latest JSON response seems to be malformed.

Previous responses have had a structure like:

{
   "Keyword":"\"marhope\"",
   "TermKey":null,
   "Customers":[
      {
         "Memberships":[ ],
         "CompanyId":0,
         "ObjectId":112974,
         "ObjectType":"Customer",

      }
   ]
}

To extract specific nodes by name, I used JObject.Parse method.

However, the recent JSON response looks like this:

{
   [
      {
         "AnimalId":9079117,
         "SpeciesCode":"XX",
      }
   ]
}   

You can see that there is no identifiable "name" and the JSON formatting is slightly incorrect.

How can I handle this situation? In my previous approach shown in the code snippet below, I was able to work with named nodes. Now with the lack of names in the JSON, I am unsure about the best approach, any suggestions?

JObject results = JObject.Parse(csr.SearchCustomer(1, 1, 870, term));
foreach (var resp in results["Customers"])
{
    string obj = (string)resp["CompanyId"];
}

Answer №1

It appears that Jon Skeet is accurate in pointing out the issue with the second JSON being invalid due to having an array directly inside an object without a property name. The ideal solution would be to have the API developers rectify the JSON structure. However, if you need a temporary workaround, one approach is to remove the first and last brace from the invalid JSON and parse it as an array using JArray.Parse.

string json = @"{
   [
      {
         ""AnimalId"":9079117,
         ""SpeciesCode"":""XX"",
      }
   ]
}";

json = json.Substring(1, json.Length - 2);
JArray array = JArray.Parse(json);
foreach (JObject item in array.Children<JObject>())
{
    Console.WriteLine("AnimalId: " + item["AnimalId"]);
    Console.WriteLine("SpeciesCode: " + item["SpeciesCode"]);
}

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