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replace path variable #174

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replace path variable #174

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6ba0e2e
add replacing path variable
YevhenKysilov Jan 26, 2024
fe44ec3
replace path variables
YevhenKysilov Jan 26, 2024
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9 changes: 8 additions & 1 deletion lib/reverse_proxy_plug.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -238,7 +238,7 @@ defmodule ReverseProxyPlug do
end

defp prepare_url(conn, overrides) do
keys = [:scheme, :host, :port, :query_string]
keys = [:scheme, :host, :port, :query_string, :path_params]

x =
conn
Expand All @@ -249,6 +249,7 @@ defmodule ReverseProxyPlug do

request_path = Enum.join(conn.path_info, "/")
request_path = Path.join(overrides[:request_path] || "/", request_path)
request_path = replace_path_variables(request_path, x[:path_params])

request_path =
if String.ends_with?(conn.request_path, "/") && !String.ends_with?(request_path, "/"),
Expand Down Expand Up @@ -456,4 +457,10 @@ defmodule ReverseProxyPlug do
Conn.put_resp_header(conn, header, value)
end)
end

defp replace_path_variables(path, path_params) do
Regex.replace(~r/:([a-zA-Z_]+)/, path, fn match, var_name ->
Map.get(path_params, var_name, match)
end)
end
end