Error 405 not allowed on HttpPost in Asp.net core 3.1 web api

Question

When i try to post the raw text with postman the server answer 405 not allowed. I try to add

app.UseCors(options => options.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader());

services.AddCors();

without any solution.

Whis is the code of the application:

   [Route("api/[controller]")]
    [ApiController]
    public class VideoWallController : ControllerBase
    {
        // GET: api/<ValuesController>
        [HttpGet]
        public IEnumerable<string> Get()
        {
            return new string[] { "value1", "value2" };
        }

        // GET api/<ValuesController>/5
        [HttpGet("{id}")]
        public string Get(int id)
        {
            return "value";
        }

        // POST api/<ValuesController>
        [HttpPost]
        public string prova([FromBody] VideoCallBack test)
        {
            return "true;";
        }

        [HttpPost]
        public void teststring(string test)
        {

        }

        // PUT api/<ValuesController>/5
        [HttpPut("{id}")]
        public void Put(int id, [FromBody] string value)
        {
        }

        // DELETE api/<ValuesController>/5
        [HttpDelete("{id}")]
        public void Delete(int id)
        {
        }
    }

Answer 1

Firstly,as maghazade said,there are two endpoints for the post method.You can try to use [HttpPost("teststring")] as ferhrosa said.You can also add [action] to [Route("api/[controller]")],so that routes of actions will include their action names.If you add other actions with post method,the routes will not conflict anymore.

[Route("api/[controller]/[action]")]
    [ApiController]
    public class VideoWallController : ControllerBase
    {
        // GET: api/<ValuesController>/Get
        [HttpGet]
        public IEnumerable<string> Get()
        {
            return new string[] { "value1", "value2" };
        }

        // GET api/<ValuesController>/Get/5
        [HttpGet("{id}")]
        public string Get(int id)
        {
            return "value";
        }

        // POST api/<ValuesController>/prova
        [HttpPost]
        public string prova()
        {
            return "true;";
        }
        // POST api/<ValuesController>/teststring
        [HttpPost]
        public void teststring([FromBody]string test)
        {

        }

        // PUT api/<ValuesController>/Put/5
        [HttpPut("{id}")]
        public void Put(int id, [FromBody] string value)
        {
        }

        // DELETE api/<ValuesController>/Delete/5
        [HttpDelete("{id}")]
        public void Delete(int id)
        {
        }
    }

And if you want to pass string test from Body,you need to add [FromBody] and select JSON in postman.

result: