From d4ed99b747928609f10ce8bed32169b69d1e82b7 Mon Sep 17 00:00:00 2001
From: ahron1 <85363537+ahron1@users.noreply.github.com>
Date: Mon, 6 Jun 2022 17:15:51 +0530
Subject: [PATCH] Update multipart.asciidoc

For reading a multipart message where the part is a file :-

this line below leads to a badmap error after the last chunk has been read. So the functionality isn't affected but it just throws an error at the very end.
            `Req = case cow_multipart:form_data(Headers) of`

Removing the pattern matching and replacing it with just
            `case cow_multipart:form_data(Headers) of`

resolves the issue. Doing this means the recursive call `multipart(Req)` should be replaced with `multipart(Req1)`.
---
 doc/src/guide/multipart.asciidoc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/src/guide/multipart.asciidoc b/doc/src/guide/multipart.asciidoc
index 0825244c..cb732194 100644
--- a/doc/src/guide/multipart.asciidoc
+++ b/doc/src/guide/multipart.asciidoc
@@ -98,14 +98,14 @@ part is a file:
 multipart(Req0) ->
     case cowboy_req:read_part(Req0) of
         {ok, Headers, Req1} ->
-            Req = case cow_multipart:form_data(Headers) of
+            case cow_multipart:form_data(Headers) of
                 {data, _FieldName} ->
                     {ok, _Body, Req2} = cowboy_req:read_part_body(Req1),
                     Req2;
                 {file, _FieldName, _Filename, _CType} ->
                     stream_file(Req1)
             end,
-            multipart(Req);
+            multipart(Req1);
         {done, Req} ->
             Req
     end.