Add multipart support <3

shard.yml

@@ -8,5 +8,9 @@ dependencies:
   kilt:
     github: jeromegn/kilt
     version: 0.3.3
+  multipart:
+    github: RX14/multipart.cr
+    version: 0.1.0
+
 author:
   - Serdar Dogruyol <dogruyolserdar@gmail.com>

spec/helpers_spec.cr

@@ -135,7 +135,7 @@ describe "Macros" do
   end
 
   describe "#serve_static" do
-    it "should disble static file hosting" do
+    it "should disable static file hosting" do
       serve_static false
       Kemal.config.serve_static.should eq false
     end

src/kemal.cr

@@ -1,4 +1,5 @@
 require "http"
+require "multipart"
 require "./kemal/*"
 require "./kemal/helpers/*"
 require "./kemal/middleware/*"

src/kemal/helpers/helpers.cr

@@ -78,3 +78,20 @@ end
 def gzip(status : Bool = false)
   add_handler HTTP::DeflateHandler.new if status
 end
+
+# Parses a multipart/form-data request. This is really useful for file uploads.
+# Consider the example below taking two image uploads as image1, image2. To get the relevant data
+# for each field you can use simple `if/switch` conditional.
+#
+#   post "/upload" do |env|
+#     parse_multipart(env) do |field, data|
+#       image1 = data if field == "image1"
+#       image2 = data if field == "image2"
+#       "Upload complete"
+#     end
+#   end
+def parse_multipart(env)
+  HTTP::FormData.parse(env.request) do |field, data|
+    yield field, data
+  end
+end