When send Parameter pagenumber to web api by post man action not working or recognize? - asp.net-core

Question

I work on .net core 6 web api I face issue when
send paramter pagenumber on url by post man
action not catched by break point debug .
so what is issue and How to solve It ?
i try with url
https://localhost:7235/api/items/pageNumber=1
[HttpGet("{pageNumber}")]
public async Task<IActionResult> GetAll(int pageNumber)
{
}
it return error 200 bad Request .
but i try with url below
https://localhost:7235/api/items/
[HttpGet]
[Route("")]
public async Task<IActionResult> GetAll(int pageNumber)
{
}
it working hit controller success and return data success fromitems controller action get all .
so What is issue please and How to solve it ?
Updated post not working
[HttpGet("{pageNumber}")]
public async Task<IActionResult> GetAll(int pageNumber)
{
}
for this action you need to use this url:
https://localhost:7235/api/items/1
not working and it give me error 500 internal server error
all controller items
using DomainModel.Entities;
using DomainModel.Pagination;
using DomainModel.ViewModel;
using k8s.Models;
using MediatR;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Service.Contract;
using Service.Features.CustomerFeatures.Commands;
using Service.Features.CustomerFeatures.Queries;
namespace WebApi.Controllers
{
[Route("api/[controller]")]
[ApiController]
public class ItemsController : Controller
{
private readonly IitemService _iitem;
private readonly IPageHelper<ItemsViewModel> _pageHelper;
public ItemsController(IitemService iitem, IPageHelper<ItemsViewModel> pageHelper)
{
_iitem = iitem;
_pageHelper = pageHelper;
}
[HttpPost]
public async Task<IActionResult> Create(Items item)
{
await _iitem.AddAsync(item);
return Ok();
}
[HttpGet("{pageNumber}")]
public async Task<IActionResult> GetAll(int pageNumber)
{
var allitems = _iitem.GetAllItems();
var result = _pageHelper.GetPage(allitems.AsQueryable(), pageNumber);
var itemsdata = new ItemsPageViewModel
{
items = result.Items,
Pager = result.Pager
};
return Ok(itemsdata);
}
[HttpGet("{id}")]
public async Task<IActionResult> GetById(int id)
{
var details = await _iitem.GetByIdAsync(id);
return Ok(details);
}
[HttpDelete("{id}")]
public async Task<IActionResult> Delete(int id)
{
await _iitem.DeleteAsync(id);
return Ok();
}
[HttpPut("{id}")]
public async Task<IActionResult> Update(int id, Items item)
{
if (id != item.Id)
{
return BadRequest();
}
await _iitem.UpdateAsync(id, item);
return Ok();
}
}
}

Answer 1

The error you are actually getting is
AmbiguousMatchException: The request matched multiple endpoints.
This is because you have two actions that have the same route:
// for this action you need to use this url:
// https://localhost:7235/api/items/1
[HttpGet("{pageNumber}")]
public async Task<IActionResult> GetAll(int pageNumber)
{
var allitems = _iitem.GetAllItems();
var result = _pageHelper.GetPage(allitems.AsQueryable(), pageNumber);
var itemsdata = new ItemsPageViewModel
{
items = result.Items,
Pager = result.Pager
};
return Ok(itemsdata);
}
// for this action you ALSO need to use this url:
// https://localhost:7235/api/items/1
[HttpGet("{id}")]
public async Task<IActionResult> GetById(int id)
{
var details = await _iitem.GetByIdAsync(id);
return Ok(details);
}
Both actions are HttpGet and both use the same route:
https://localhost:7235/api/items/x
you need to change the route for one of them.
Routing to controller actions in ASP.NET Core