Forcing Web.Contents to make a GET call with a body

Hi,

I've used the following code pattern against several APIs to retrieve JSON content via Web.Contents, like so:

let
    getProjects = let
    relpath = "/api/path/here",
    Body = "
        {
            ""uid"": ""xyz"",
            ""api_key"": ""123"",
            ""secret_token"": ""456""
        }",
    Source = Json.Document(
        Web.Contents(
            "https://api.domain.com",
            [
                RelativePath = relpath,
                Content = Text.ToBinary(Body),
                Headers = [
                    #"Content-type" = "application/json"
                ]
            ]
        )
    ),
    response = try Source otherwise null
in
    Source
in
    getProjects

When I repurposed this code snippet to call a new (for me) API, I ran into a 404 Not found error. I triple checked my URL and relative path, all is correct. After running Advanced Diagnostics, I realized that all along this code pattern has been making POST requests, not GET. The reason I hadn't realized that in the past is that those specific APIs accept both GET and POST requests, but the new one doesn't.

Is there a way to force Web.Contents to stick to a GET HTTP request when you add a body (via Content) to the request? I need this body as this API uses it to pass along authentication parameters. Thanks for any help!