Is there a way to define a base URL in HttpClient ...

# ktor

[tseisel]

Is there a way to define a base URL in HttpClient ?
By "base URL" I mean that all requests are based on it, for example :
with baseUrl = "https://foo.host.com/api/v1"
when calling httpClient.get("endpoint"), then the resolved URL is <https://foo.host.com/api/v1/endpoint>.

[Evan R.]

The easiest way might be to add an extension function on the HTTP client which invokes get() but prefixes the path with the base URL that you want

[Evan R.]

If you want to do it a more complictaed way you might need to come up with your own “base URL” feature and install it to the client

[russhwolf]

There’s a DefaultRequest feature: https://ktor.io/clients/http-client/features/default-request.html

[russhwolf]

It’s not quite the syntax you want, but you can make your other requests httpClient.get { url { encodedPath = "endpoint" } }

[tseisel]

I found that I could archive something close to what I want with the DefaultRequest feature :

val client = HttpClient(OkHttp) {
    defaultRequest {
        url {
            protocol = URLProtocol.HTTPS
            host = "<http://foo.host.com|foo.host.com>"
        }
    }
}

client.get<HttpResponse>(path = "api/v1/endpoint")

With that I can at least specify a common host.
Would be nice to have something similar to Retrofit's baseUrl though. I'll consider writing a feature for that.