FromHeaderAttribute 不适用于属性

Question

I am trying to bind model property using FromHeaderAttribute which according to documentation should work for parameter and properties.

Unfortunately, for some reason I cannot get it working for properties in PUT/POST request models:

    public class TestModel
    {
        [FromBody]
        public string Value { get; set; }

        // The property I want to be bound from header
        [FromHeader(Name = "Origin")] 
        public string Origin { get; set; }
    }

    [HttpPost]
    public void Post(
        TestModel value,
        [FromHeader] string origin)
    {
        Console.WriteLine(value.Origin); // always empty
        Console.WriteLine(value.Value); // OK
        Console.WriteLine(origin); // OK
    }

Asp.Net Core App v2.2.0

Answer 1

If you want to bind the value of Request Header to one property of the model, you need to configure SuppressInferBindingSourcesForParameters as true in ConfigureServices in Startup.cs like below:

services.AddMvc().ConfigureApiBehaviorOptions(options => {
            options.SuppressInferBindingSourcesForParameters = true;
        }).SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

Use the Postman with the below settings to call the post action

Add Headers:

Set the value in Body:

The screenshot of result:

Use powershell to call the post action,change your Body like below:

Invoke-WebRequest `
-Method 'POST' `
-Uri "http://localhost:50112/api/values" `
-Headers @{"Pragma"="no-cache"; "Cache-Control"="no-cache"; "Origin"="http://localhost" } `
-Body ("test"|ConvertTo-Json) `
-ContentType "application/json"