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lib/nerves_hub_link/extensions/geo/default_resolver.ex
# SPDX-FileCopyrightText: 2024 Jon Carstens
# SPDX-FileCopyrightText: 2024 Lars Wikman
#
# SPDX-License-Identifier: Apache-2.0
#
defmodule NervesHubLink.Extensions.Geo.DefaultResolver do
@moduledoc """
Default `Resolver` implementation.
Uses the Nerves project's `whenwhere` service and library to perform a rough
GeoIP-lookup. Please use within reason. The Nerves team provides no
guarantees for this service's availability or continued operation. With some
luck it should be up, reliable and useful.
"""
@behaviour NervesHubLink.Extensions.Geo.Resolver
alias NervesHubLink.Extensions.Geo.Resolver
@impl Resolver
def resolve_location() do
case Whenwhere.asks() do
{:ok, resp} ->
payload = %{
source: "geoip",
latitude: resp[:latitude],
longitude: resp[:longitude]
}
{:ok, payload}
{:error, error} ->
{:error, "HTTP_ERROR", inspect(error)}
end
end
end