Masterarbeit/QuellCode/CentronERP/Centron.Api.docuFORM/Helper/HttpResponseMessageExtensions.cs

using Centron.Api.docuFORM.Models.Swagger.Responses;
using Centron.Interfaces.BL;
using System;
using System.Collections.Generic;
using System.Net;
using System.Text;
using System.Text.Json;

namespace Centron.Api.docuFORM.Helper
{
    public static class HttpResponseMessageExtensions
    {
        public static async Task<string> ReadContentAndThrowIfError(this HttpResponseMessage? response)
        {
            if(response == null)
                throw new HttpRequestException ($"No http response received!");

            var content = await response.Content.ReadAsStringAsync();

            if (!response.IsSuccessStatusCode)
                throw new HttpRequestException ($"An error occured during the http request: {content}");

            return content;
        }

        public static async Task<Result<T>> CheckResponseAndDeserializeContent<T>(this HttpResponseMessage? response)
        {
            try
            {
                if(response == null)
                    throw new HttpRequestException ($"No http response received!");

                var content = await ReadContentAndThrowIfError(response);

                var options = new JsonSerializerOptions { PropertyNameCaseInsensitive = true };

                var obj = JsonSerializer.Deserialize<T>(content, options);

                if(obj != null)
                    return Result<T>.AsSuccess(obj);

                return Result<T>.AsError("Unable to deserialize object!");
            }
            catch (Exception ex)
            {
                return Result<T>.FromException(ex);
            }
        }
    }
}