Notes/Controllers/ApiController.cs

using BinaryDad.Notes.Services;
using Microsoft.AspNetCore.Mvc;

namespace BinaryDad.Notes.Controllers;

[ApiController]
[Route("[controller]")]
public class ApiController : ControllerBase
{
    private readonly INoteService noteService;

    public ApiController(INoteService noteService)
    {
        this.noteService = noteService;
    }

    [HttpPost]
    [Route("save")]
    public async Task<bool> Save()
    {
        var content = string.Empty;

        using (var reader = new StreamReader(Request.Body))
        {
            content = await reader.ReadToEndAsync();
        }

        noteService.Save(content);

        return true;
    }
}