Fetch_dotNET.Core 1.0.0

Fetch_dotNET.Core (Modern .NET)

Fetch_dotNET.Core è una libreria leggera di utility HTTP pensata per .NET moderno (net10.0).
Offre un wrapper ad alto livello su System.Net.Http.HttpClient con API sync/async, download file e utility di rete.

Nota: questa libreria espone una classe statica chiamata HttpClient (namespace Fetch_dotNET.Core).
Per evitare confusione con System.Net.Http.HttpClient, nel tuo codice puoi usare l’alias del namespace oppure il nome completo.

Requisiti

• .NET 10.0
• Dipendenze:
  • Newtonsoft.Json (per parsing di opzioni/headers in JSON)

Installazione

.NET CLI

dotnet add package Fetch_dotNET.Core

Package Manager

Install-Package Fetch_dotNET.Core

Panoramica delle funzionalità

• GET / POST / PUT / DELETE (sync e async)
• Timeout per richiesta
• Headers personalizzati (User-Agent, Authorization, Content-Type, ecc.)
• Supporto a:
  • Basic Auth
  • Bearer JWT
• Invio dati:
  • stringa (tipicamente JSON)
  • NameValueCollection (form-url-encoded)
• Download file
• Utility: IP locale/pubblico, MAC address, ping, check URL, ecc.

Quick start

using System;
using System.Threading.Tasks;
using Fetch_dotNET.Core;

class Program
{
    static async Task Main()
    {
        // Verifica connessione
        if (!HttpClient.IsConnectedToInternet())
            return;

        // GET (sync)
        var r1 = HttpClient.Fetch("http://localhost/api/Azienda?lic_id=5383");
        Console.WriteLine(r1);

        // GET (async)
        var r2 = await HttpClient.FetchAsync("http://localhost/api/Azienda?lic_id=5383");
        Console.WriteLine(r2);
    }
}

Esempi completi

Gli esempi seguenti sono presi dal progetto di esempio e mostrano l’uso delle principali API.

1) Utility di rete

bool isConnected = HttpClient.IsConnectedToInternet();
string myLocalIP  = HttpClient.GetLocalIP();
string myPublicIP = HttpClient.GetPublicIP();
string myMAC      = HttpClient.GetMacAddress();

2) Ping

var httpPingResponse = HttpClient.PingHost("http://192.168.1.1");
Console.WriteLine(httpPingResponse);

3) GET con timeout

var httpResponse = HttpClient.Fetch("http://localhost/api/Azienda?lic_id=5383", 3000);
Console.WriteLine(httpResponse);

4) GET async

var httpResponseAsync = await HttpClient.FetchAsync("http://localhost/api/Azienda?lic_id=5383");
Console.WriteLine(httpResponseAsync);

5) GET con Basic Auth (headers)

using System.Net;
using System.Text;

WebHeaderCollection headers = new WebHeaderCollection();
headers[HttpRequestHeader.UserAgent] = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)";

string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes("username:password"));
headers[HttpRequestHeader.Authorization] = "Basic " + credentials;

var resp = HttpClient.Fetch("http://localhost/api/Azienda?lic_id=5383", "GET", "", "", false, 3000, headers);
Console.WriteLine(resp);

6) GET con Bearer JWT (headers)

using System.Net;

WebHeaderCollection headers = new WebHeaderCollection();
headers[HttpRequestHeader.Authorization] = "Bearer " + jwt;

var resp = HttpClient.Fetch("http://localhost/api/Azienda?lic_id=5383", headers);
Console.WriteLine(resp);

7) GET con fetchOptions (JSON headers + timeout)

string fetchOptions = "{" +
    "'method': 'GET'," +
    "'headers': {" +
        "'Accept': 'application/json'," +
        "'Content-Type': 'application/json'," +
        "'Authorization': 'Bearer " + jwt + "'," +
        "'User-Agent': 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/6.0;)'" +
    "}," +
    "'timeout': 3000" +
"}";

var resp = await HttpClient.FetchAsync("http://localhost/api/Azienda?lic_id=5383", fetchOptions, data: null);
Console.WriteLine(resp);

8) POST JSON

string addressPost = "http://localhost/api/Appuntamenti";
string json = "{'shop_id':8000,'read':'secondary','events':[{'app_id':0,'eventType':'draft','eventColor':'lime'}]}";

var resp = HttpClient.Fetch(addressPost, "POST", json);
Console.WriteLine(resp);

9) POST con NameValueCollection (form)

using System.Collections.Specialized;

var values = new NameValueCollection();
values["product"] = "Fetch_dotNET";
values["version"] = "1.0.0";
values["log"]     = "13/06/20 18:51:03 ERROR ParseFormUPDATE";

string addressLog = "http://localhost/api/addLog.php";
var resp = HttpClient.Fetch(addressLog, values);
Console.WriteLine(resp);

10) Download file

string fileUrl  = "http://localhost/books/Extjs-Release1.0.0.pdf";
string fileName = @"C:\path\to\Extjs-Release1.0.0.pdf";

var resp = HttpClient.FetchDownloadFile(fileUrl, fileName);
Console.WriteLine(resp);

Note su timeout

Molti overload accettano timeout in millisecondi (es: 3000 = 3 secondi).

Licenza

Vedi la licenza del pacchetto su NuGet.