Get absolute URL inside Web API Controller?

Question

In my Controller I can't use CreatedAtAction for reasons out of the scope of this question. I therefore need to do the following, however I don't know how to get the absolute URL of the Web API to correctly set the Location header?

public async Task<ActionResult<string>> PostItem(ItemPostRequest itemPostRequest)
{
    // call repository etc.

    string baseUrl= // <------- how to get this?
    Response.Headers.Add("Location", baseUrl + insertId);

    return Content(savedItem, "application/json", System.Text.Encoding.UTF8);
}

I am on .NET 5.0, in case this matters.

Prasad Ramireddy · Accepted Answer · 2021-01-01 12:16:20Z

4

string baseUrl = $"{Request.Scheme}://{Request.Host.Value}/{Request.Path}";

answered Jan 1, 2021 at 12:16

Prasad Ramireddy

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1 Comment

me.at.coding Over a year ago

thanks, that looks promising after first tests. Note that Request.Path can contain a trailing slash. Wondering if one has to check this manually or there is a more comfortable solution

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