Fetching JSON data with .netcore from a web api - .net-core

Question

I made an api which have some data for example www.example.com/data/select?indent=on&q=title:asthma
gives the data in JSON format like
{
"responseHeader":{
"status":0,
"QTime":2,
"params":
{
"q":"title:asthma",
"indent":"on",
"wt":"json"
},
"response":{"numFound":1,"start":0, docs:[
{
"tstamp": "xxxx"
"id": "xxxxx"
"title": "Asthma is a medical term"
"url": "www.example.com/xxxx"
"content":"xxxxx"
}]}
}}
I want to call the same url from my .netcore application such that I can have title and url from the response and show it to my .netcore application.
As a new to .netcore it is pretty tricky to get used to MVC architecture. My model look like this
namespace searchEngineTesting.Models
{
public class SearchModel
{
public string Title {get; set;}
public string Source {get; set;}
}
}
How can I use controller that whenever triggers take a string as an input for example cancer and put it to the title of the api like www.example.com/data/select?indent=on&q=title:cancer and fetch the title and url from the response.

Answer 1

You could fetch json data like below:
[HttpGet]
public async Task<JsonResult> Get()
{
var model = new SearchModel();
var url = "https://localhost:5001/api/values/test";//it should be the url of your api
using (var httpClient = new HttpClient())
{
using (var response = await httpClient.GetAsync(url))
{
using (var content = response.Content)
{
//get the json result from your api
var result = await content.ReadAsStringAsync();
var root = (JObject)JsonConvert.DeserializeObject(result);
var items = root.SelectToken("responseHeader").Children().OfType<JProperty>().ToDictionary(p => p.Name, p => p.Value);
foreach(var item in items)
{
if(item.Key== "response")
{
var key = item.Value.SelectToken("").OfType<JProperty>().ToDictionary(p => p.Name, p => p.Value);
foreach (var k in key)
{
if(k.Key== "docs")
{
var tests = JsonConvert.DeserializeObject<JArray>(k.Value.ToString());
var data = k.Value.SelectToken("").Children().First();
var test = data.SelectToken("").Children().OfType<JProperty>().ToDictionary(p => p.Name, p => p.Value);
foreach (var t in test)
{
if (t.Key == "url")
{
model.Source = t.Value.ToString();
}
else if (t.Key=="title")
{
model.Title = t.Value.ToString();
}
}
}
}
}
}
return new JsonResult(model);
}
}
}
}
[HttpGet("[Action]")]
public string test()
{
//for easy testing,I just read your json file and return string
var jsonstring = System.IO.File.ReadAllText("C:\\test.json");
return jsonstring;
}