GoogleApi/HttpClientFactory.cs

﻿using System;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;

namespace GoogleApi;

//github.com/ <summary>
//github.com/ Provide a default global httpClient and a factory a factory method
//github.com/ </summary>
public static class HttpClientFactory
{
    //github.com/ <summary>
    //github.com/ Proxy property that will be used for all requests.
    //github.com/ </summary>
    public static IWebProxy Proxy { get; set; }

    //github.com/ <summary>
    //github.com/ Create Default Http Client.
    //github.com/ </summary>
    //github.com/ <returns>The <see cref="HttpClient"/>.</returns>
    public static HttpClient CreateDefaultHttpClient()
    {
        var httpMessageHandler = HttpClientFactory.GetDefaultHttpClientHandler(HttpClientFactory.Proxy);
        var httpClient = new HttpClient(httpMessageHandler);

        HttpClientFactory.ConfigureDefaultHttpClient(httpClient);

        return httpClient;
    }

    //github.com/ <summary>
    //github.com/ Configure Default Http Client.
    //github.com/ </summary>
    //github.com/ <param name="httpClient"></param>
    public static void ConfigureDefaultHttpClient(HttpClient httpClient)
    {
        if (httpClient == null)
            throw new ArgumentNullException(nameof(httpClient));

        httpClient.Timeout = TimeSpan.FromSeconds(30);

        httpClient.DefaultRequestHeaders.Accept
            .Add(new MediaTypeWithQualityHeaderValue("application/json"));
    }

    //github.com/ <summary>
    //github.com/ Get Default Http Client Handler.
    //github.com/ </summary>
    //github.com/ <returns>The <see cref="HttpMessageHandler"/>.</returns>
    public static HttpClientHandler GetDefaultHttpClientHandler(IWebProxy webProxy = null)
    {
        var httpClientHandler = new HttpClientHandler
        {
            Proxy = webProxy
        };

        if (httpClientHandler.SupportsAutomaticDecompression)
        {
            httpClientHandler.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
        }

        return httpClientHandler;
    }
}