jobtrackingapp/Controller/CorrespondenceController.cs

using JobTrackerApi.Data;
using JobTrackerApi.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace JobTrackerApi.Controllers
{
    [ApiController]
    [Route("api/[controller]")]
    public class CorrespondenceController : ControllerBase
    {
        private readonly JobTrackerContext _context;
        public CorrespondenceController(JobTrackerContext context) => _context = context;

        // GET all messages for a job
        [HttpGet("{jobId}")]
        public async Task<IEnumerable<Correspondence>> GetForJob(int jobId)
        {
            return await _context.Correspondences
                .Where(c => c.JobApplicationId == jobId)
                .OrderBy(c => c.Date)
                .ToListAsync();
        }

        // POST new message
        [HttpPost]
        public async Task<ActionResult<Correspondence>> Post(Correspondence message)
        {
            _context.Correspondences.Add(message);
            await _context.SaveChangesAsync();
            return CreatedAtAction(nameof(GetForJob), new { jobId = message.JobApplicationId }, message);
        }
    }
}