How can I parse JSON string from HttpClient?

There are three ways that come to mind.

1. Assuming the json is consistent and the structure of the response will not change frequently, I would use a tool like json2csharp or jsonutils to create c# classes.

   then call:

   {GeneratedClass} obj = JsonConvert.DeserializeObject<{GeneratedClass}>(result);
   

   This will give you a strongly typed object that you can use.

2. You can skip the class generation and use a dynamic object:

   dynamic obj = JsonConvert.DeserializeObject<dynamic>(result)
   

   and access properties such as:

   obj.dialog.prompt;
   

3. You can use a JObject and access its properties using strings

   JObject obj = JsonConvert.DeserializeObject(result);
   
   obj["dialog"]["prompt"]