How to download a file when a custom header is needed?

I want to download from a private repository in GitHub, so I need to pass the headers Authorization: token ${GITHUB_TOKEN} and Accept: application/vnd.github.v3.raw.

For example, with curl: curl -H "Authorization: token ${GITHUB_TOKEN}" -H 'Accept: application/vnd.github.v3.raw' -o file.yaml -L https://api.github.com/repos/<owner>/<repo>/contents/file.yaml

Looking for information about how to download a file in Kotlin, I found a few examples, and I’m using the following:

fun downloadFile(url: URL, fileName: String) {
    url.openStream().use { Files.copy(it, Paths.get(fileName)) }
}

How can I pass those two headers?

Answer

Found a link that helped me with this:

fun downloadFile(url: URL, fileName: String, githubToken: String) {
    url.openConnection().apply {
        setRequestProperty("Accept", "application/vnd.github.v3.raw")
        setRequestProperty("Authorization", "token "+ githubToken)
    }.getInputStream().use { Files.copy(it, Paths.get(fileName)) }
}