How to pass multiple objects in IActionResult method

Question

I need to pass two objects in the IActionResult method in Asp.net core. I try the following method but one object pass with the null values. what are the changes should I follow?

public IActionResult createService([FromBody] ArmSmServiceCreatorEntity CreateServiceDetail, [FromBody] ArmSmServiceAndSubServiceEntity createSSSDetails)
{
    try
    {
        this.manager.BeginTransaction();

        if (CreateServiceDetail == null)
        {
            return BadRequest("Service is null.");
        }

        this.manager.ArmSmServiceCreatorRepository.Add(CreateServiceDetail);

        if (createSSSDetails == null)
        {
            return BadRequest("Service is null.");
        }

        this.manager.ArmSmServiceAndSubServiceRepository.Add(createSSSDetails);
        this.manager.Commit();

        return Ok("File was processed.");
    }
    catch (Exception ex)
    {
        this.manager.Rollback();
        throw ex;
    }
}

Add the json which you are passing from client-side.

hsn-mnj
– hsn-mnj

2021-02-25 10:14:23 +00:00
Commented Feb 25, 2021 at 10:14 — hsn-mnj
– hsn-mnj, Commented Feb 25, 2021 at 10:14

Ruslan Gilmutdinov · Accepted Answer · 2021-02-25 10:47:31Z

1

You can only have one FromBody parameter.

The documentation says:

Don't apply [FromBody] to more than one parameter per action method. Once the request stream is read by an input formatter, it's no longer available to be read again for binding other [FromBody] parameters.

Use a single object that wraps the two parameters:

public class ArmSmServiceRequest {
    ArmSmServiceCreatorEntity CreateServiceDetail { get; set; }
    ArmSmServiceAndSubServiceEntity CreateSSSDetails { get; set; }
}

Your method will look like:

public IActionResult createService([FromBody] ArmSmServiceRequest)

On the client side you also need to wrap two objects into one.

edited Feb 25, 2021 at 10:47

answered Feb 25, 2021 at 10:22

Ruslan Gilmutdinov

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