I am having trouble with the put method of Web API. I am working with Kendo UI Jquery inside ASP.NET MVC and it has to make a PUT through API.

Please guide me what am I doing wrong, also at the end of this is the error code.

Here it is what I have tried so far:

API controller:

[HttpPut] //It never reaches here
[Route("api/Update")]
public async Task<IActionResult> Update(Guid id, UpdateProductCommand command)
{
    if (id != command.Id)
    {
        return BadRequest();
    }

    return Ok(await _mediator.Send(command));
}

ASP.NET MVC controller:

public ActionResult Update(Guid id, [FromBody]Product product)
{
    using (var client = new HttpClient())
    {
        client.BaseAddress = new Uri("https://localhost:44393");
            
        var json = JsonConvert.SerializeObject(product);

        var contentData = new StringContent(json, Encoding.UTF8, "application/json");

        var response = client.PutAsync("/api/Product", contentData);

        var result = response.Result;

        if (result.IsSuccessStatusCode)
        {
            return RedirectToAction("Index");
        }
    }

    return View(product);
}

View with Kendo UI:

<script>
    //----------TRANSPORT -------------------//
    var dataSource = new kendo.data.DataSource({
        batch: false,
        transport: {
            read: {
                url: "https://localhost:44393/api/Product",
                dataType: "json"
            },
            update: {
                url: "@Url.Action("Update", "Home")",
                dataType: "json",
            },
            create: {
                url: "@Url.Action("Create", "Home")",
                dataType: "json",
                contentType: "application/json",
                type: "POST"
            },
            destroy: {
                url: "@Url.Action("Delete", "Home")",
                dataType: "json",

            },
           },
        pageSize: 5,
        schema: {
            model: {
                id: "id",
                fields: {
                    id: { editable: false, nullable: true },
                    productName: { type: "string", editable: true },
                    prouctSKU: { type: "string", editable: true },
                    productType: { type: "string", editable: true },
                }
            }
        }
    });

Error:

jquery.min.js:4 GET https://localhost:44385/Home/Update?id=1e8332f1-ae69-4997-b851-08d9ae81e7de&productName=sd&prouctSKU=string&productType=string 415

CodePudding user response：

In your MVC Controller you are using PutAsync in a non async method. Change your Action to an async method, change the ActionResult to async Task<ActionResult> and use the await keyword when calling the PutAsync.

Or if you do not want to change your method to an async method change the call client.PutAsync to client.Put

CodePudding user response：

You need to tell your component to make a PUT request otherwise it will default to GET. According to the docs, you should specify the type of the request. For example:

update: {
    url: "@Url.Action("Update", "Home")",
    dataType: "json",
    type: "PUT" //<---- Add this
},