using Microsoft.AspNetCore.Http;
using System.IO;
using System.Text;

namespace EntrustSettle.Common.Extensions;

public static class HttpRequestExtension
{
    public static string GetRequestBody(this HttpRequest request)
    {
        if (!request.Body.CanRead)
        {
            return default;
        }

        if (!request.Body.CanSeek)
        {
            return default;
        }

        if (request.Body.Length < 1)
        {
            return default;
        }

        var bodyStr = "";
        // 启用倒带功能，就可以让 Request.Body 可以再次读取
        request.Body.Seek(0, SeekOrigin.Begin);
        using (StreamReader reader
               = new StreamReader(request.Body, Encoding.UTF8, true, 1024, true))
        {
            bodyStr = reader.ReadToEnd();
        }

        request.Body.Position = 0;
        return bodyStr;
    }
}