Setting up the Dropbox connection

dropboxSetup.kt

private val config: DbxRequestConfig = DbxRequestConfig.newBuilder("recipe-vault")
        .withHttpRequestor(OkHttp3Requestor(OkHttp3Requestor.defaultOkHttpClient()))
        .build()
private var client: DbxClientV2? = null

/**
* Launches the browser for the user to log in to Dropbox and get the credentials
*/
fun startOAuth2Authentication() {
  Auth.startOAuth2PKCE(
      context, API_KEY, config,
      listOf("account_info.read", "files.content.write", "files.content.read")
  )
}