Ability to override base url

[bartlomiejgawel]

Environment

• Checkout SDK version: 4.2.2

Description

I would like to write integration tests using a mocked Checkout API (for example using WireMock.Net).

To do that, I would like to override the base URL.

Unfortunately, I am not able to do that. If you take a look on the existing implementation, it only allows:

configuration.EnvironmentSubdomain != null
    ? configuration.EnvironmentSubdomain.ApiUri
    : configuration.Environment.GetAttribute<EnvironmentAttribute>().ApiUri

Neither of these two options allows us to set our own base address.

Proposed Solution

It would be nice to have an option in CheckoutSdkBuilder to do something like that:

var client = CheckoutSdk
    .Builder()
    .BaseUrl("https://localhost:1234") // always override the base URL
    .Build();

or:

var client = CheckoutSdk
    .Builder()
    .Environment(Environment.Custom)
    .BaseUrl("https://localhost:1234") // override only when Environment == Custom
    .Build();

or:

var client = CheckoutSdk
    .Builder()
    .HttpClientFactory(...) // use the base url from the http client if present
    .Build();

• I may be able to implement this feature