CODEWITHSUNDEEP
c#asp.net-coreasp.net-core-3.1
hanushi
hanushi

Reputation: 161

Action has more than one parameter that was specified or inferred as bound from request body. Only one parameter per action may be bound from body

Error : Action has more than one parameter that was specified or inferred as bound from request body. Only one parameter per action may be bound from body .netcore

When i wrote a new httpPost method with 2 parameters of my .net core project and getting above error. how can i solve this.

        [HttpPost]
        public async Task<IActionResult> Create([FromBody] UserBO userBO, [FromBody] SiteCode siteCode)
        {
            try
            {

                await _userService.CreateUserAsync(userBO, siteCode);

                return Created(nameof(Get), userBO);
            }
            catch (Exception ex)
            {
                return HandleException(ex);
            }
        }

Upvotes: 2

Views: 5835

Answers (2)

JClarkCDS
JClarkCDS

Reputation: 419

I was getting this error on a .NET 7 web Api controller being migrated from .NET 4.8. In the original controller there was a public void method consumed by the actions of the controller. The error was occurring in Program.cs:

app.UseEndpoints(endpoints =>
{
    endpoints.MapControllerRoute(
        name: default,
        pattern: "{controller=Home}/{action=Index}/{id?}");
});

I changed the method to private void which fixed it. I don't know why routing was trying to include the method as an endpoint as there wasn't a routing attribute.

Upvotes: 0

Yiyi You
Yiyi You

Reputation: 18209

You can try to create a new Model which contains userBO and siteCode:

Model:

public class USModel
    {
        public UserBO userBO { get; set; }
        public SiteCode siteCode { get; set; }
    }

Action:

[HttpPost]
        public async Task<IActionResult> Create([FromBody] USModel uSModel)
        {
            try
            {

                await _userService.CreateUserAsync(uSModel.userBO, uSModel.siteCode);

                return Created(nameof(Get), uSModel.userBO);
            }
            catch (Exception ex)
            {
                return HandleException(ex);
            }
        }

json format:

{
    "userBO":
    {
        ...
    },
    "siteCode":
    {
        ...
    }
}

Upvotes: 1

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