AmbiguousMatchException: The request matched multiple endpoints.

Microsoft.AspNetCore.Routing.Matching.AmbiguousMatchException: The request matched multiple endpoints. 
Matches: JWTAuthenticationExample.Controllers.ProductsController.GetById (JWTAuthenticationExample) 
JWTAuthenticationExample.Controllers.ProductsController.GetByUrlSlag (JWTAuthenticationExample) 
at Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.ReportAmbiguity(CandidateState[] candidateState) 
at Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.ProcessFinalCandidates(HttpContext httpContext, CandidateState[] candidateState) 
at Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.Select(HttpContext httpContext, CandidateState[] candidateState) 
at Microsoft.AspNetCore.Routing.Matching.DfaMatcher.MatchAsync(HttpContext httpContext) 
at Microsoft.AspNetCore.Routing.Matching.DataSourceDependentMatcher.MatchAsync(HttpContext httpContext) 
at Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.Invoke(HttpContext httpContext) 
at Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware.Invoke(HttpContext context) 
at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context) 
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext) 
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider) 
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

 public class ProductsController : Controller
{
    private readonly IProductService _service;

    public ProductsController(IProductService service)
    {
        _service = service;
    }

    [HttpGet]
    public IActionResult Get()
    {
        return Ok(_service.GetProducts());
    }

    [HttpGet("/{id}")]
    public IActionResult GetById([FromQuery] int id)
    {
        return Ok(_service.GetProductById(id));
    }

    [HttpGet("/{urlSlag}")]
    public IActionResult GetByUrlSlag([FromQuery] string urlSlag)
    {
        return Ok(_service.GetProductByUrlSlag(urlSlag));
    }
}

 public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllers();
        services.AddSwaggerGen();
    }

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        app.UseSwagger();
        app.UseSwaggerUI(action => { action.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1"); });
        app.UseHttpsRedirection();
        app.UseRouting();
        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });
    }
}