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Accept gzip encoded payloads #3938

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Accept gzip encoded payloads #3938

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Accept gzip encoded payloads
josephjclark Nov 6, 2025
3367538
unit test
josephjclark Nov 6, 2025
37ba987
refactor
josephjclark Nov 6, 2025
e62d743
changelog
josephjclark Nov 6, 2025
8177130
tidy
josephjclark Nov 6, 2025
3468386
remove docs
josephjclark Nov 6, 2025
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15 changes: 15 additions & 0 deletions lib/lightning_web/plug_configs.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,22 @@ defmodule LightningWeb.PlugConfigs do
}
],
pass: ["*/*"],
body_reader: {__MODULE__, :decompress_body, []},
json_decoder: Phoenix.json_library()
]
end

@doc """
Custom body reader that decompresses gzipped request bodies.
"""
def decompress_body(conn, opts) do
case Plug.Conn.get_req_header(conn, "content-encoding") do
["gzip" | _] ->
{:ok, body, conn} = Plug.Conn.read_body(conn, opts)
{:ok, :zlib.gunzip(body), conn}

_ ->
Plug.Conn.read_body(conn, opts)
end
end
end