Added method override

files/new_app/config/initializers/method_override.jl

@@ -0,0 +1,74 @@
+import Genie, HTTP
+
+"""
+    method_override(req::HTTP.Request, res::HTTP.Response, 
+        params::Dict{Symbol,Any})
+
+Install a pre-match hook that rewrites POSTs carrying a hidden `_method` field 
+into real PUT/PATCH/DELETE requests.
+
+Place this code in, for example, `config/initializers/method_override.jl`:
+
+# Example
+
+```jldoctest
+julia> using Genie, HTTP
+
+julia> function method_override(req::HTTP.Request, res::HTTP.Response, 
+    params::Dict{Symbol,Any})
+    if req.method == "POST"
+        post = get(params, Genie.Router.PARAMS_POST_KEY, Dict{Symbol,Any}())
+        if haskey(post, :_method)
+            m = uppercase(string(post[:_method]))
+            if m in ("PUT","PATCH","DELETE")
+                req.method = m
+            end
+        end
+    end
+    return req, res, params
+end
+
+julia> push!(Genie.Router.pre_match_hooks, method_override)
+
+julia> route("/foo", named = :test_get_override) do
+  "Hello from GET"
+end
+
+julia> route("/foo", method = POST, named = :test_post_override) do
+  "Hello from POST"
+end
+
+julia> route("/foo",  method = PUT, named = :test_put_override) do
+  "Hello from PUT"
+end
+
+julia> up(port=8000)
+
+julia> HTTP.request("GET", "http://127.0.0.1:8000/foo")
+
+julia> HTTP.request("POST", "http://127.0.0.1:8000/foo")
+
+julia> HTTP.request("PUT", "http://127.0.0.1:8000/foo")
+
+julia> Router.delete!(:test_get_override)
+
+julia> Router.delete!(:test_post_override)
+
+julia> Router.delete!(:test_put_override)
+````
+"""
+function method_override(req::HTTP.Request, res::HTTP.Response, 
+    params::Dict{Symbol,Any})
+    if req.method == "POST"
+        post = get(params, Genie.Router.PARAMS_POST_KEY, Dict{Symbol,Any}())
+        if haskey(post, :_method)
+            m = uppercase(string(post[:_method]))
+            if m in ("PUT","PATCH","DELETE")
+                req.method = m
+            end
+        end
+    end
+    return req, res, params
+end
+
+push!(Genie.Router.pre_match_hooks, method_override)