42 lines
1.0 KiB
Elixir
42 lines
1.0 KiB
Elixir
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defmodule OpentelemetryHTTPoison.URI do
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@moduledoc """
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Exposes a function to normalise URIs in a format suitable for usage as Open Telemetry metadata.
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"""
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alias HTTPoison.Request
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@default_route "/"
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@spec infer_route_from_request(Request.t()) :: binary()
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@doc """
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Infers the route of the provided `HTTPoison.Request`, returned in a format suitable for usage as Open Telemetry metadata.
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"""
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def infer_route_from_request(%Request{url: url}) when is_binary(url),
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do: infer_route_from_url(url)
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def infer_route_from_request(%Request{}), do: @default_route
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@spec infer_route_from_url(binary()) :: binary()
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defp infer_route_from_url(url) when is_binary(url) do
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url
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|> URI.parse()
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|> Map.get(:path, "/")
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|> case do
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nil ->
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@default_route
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value ->
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case String.split(value, "/", parts: 2, trim: true) do
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[] ->
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@default_route
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[path] ->
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"/#{path}"
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[path, _] ->
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"/#{path}/:subpath"
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end
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end
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end
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end
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