diff --git a/modules/swagger-codegen/src/main/resources/erlang-server/api.mustache b/modules/swagger-codegen/src/main/resources/erlang-server/api.mustache
index d948bbae4b2..ed49d5a0a78 100644
--- a/modules/swagger-codegen/src/main/resources/erlang-server/api.mustache
+++ b/modules/swagger-codegen/src/main/resources/erlang-server/api.mustache
@@ -4,6 +4,8 @@
 -export([request_param_info/2]).
 -export([populate_request/3]).
 -export([validate_response/4]).
+%% exported to silence swagger complains
+-export([get_value/3, validate_response_body/4]).
 
 -type operation_id() :: atom().
 -type request_param() :: atom().
@@ -212,7 +214,7 @@ validate(Rule = {enum, Values}, Name, Value, _ValidatorState) ->
     end;
 
 validate(Rule = {max, Max}, Name, Value, _ValidatorState) ->
-    case Value >= Max of
+    case Value =< Max of
         true -> ok;
         false -> validation_error(Rule, Name)
     end;
@@ -224,7 +226,7 @@ validate(Rule = {exclusive_max, ExclusiveMax}, Name, Value, _ValidatorState) ->
     end;
 
 validate(Rule = {min, Min}, Name, Value, _ValidatorState) ->
-    case Value =< Min of
+    case Value >= Min of
         true -> ok;
         false -> validation_error(Rule, Name)
     end;
@@ -290,6 +292,8 @@ validation_error(ViolatedRule, Name) ->
 validation_error(ViolatedRule, Name, Info) ->
     throw({wrong_param, Name, ViolatedRule, Info}).
 
+-spec get_value(body | qs_val | header | binding, Name :: any(), Req0 :: cowboy_req:req()) ->
+    {Value :: any(), Req :: cowboy_req:req()}.
 get_value(body, _Name, Req0) ->
     {ok, Body, Req} = cowboy_req:body(Req0),
     Value = prepare_body(Body),
diff --git a/modules/swagger-codegen/src/main/resources/erlang-server/auth.mustache b/modules/swagger-codegen/src/main/resources/erlang-server/auth.mustache
index bf988fac348..c81f989fd38 100644
--- a/modules/swagger-codegen/src/main/resources/erlang-server/auth.mustache
+++ b/modules/swagger-codegen/src/main/resources/erlang-server/auth.mustache
@@ -24,8 +24,12 @@ authorize_api_key(LogicHandler, OperationID, From, KeyParam, Req0) ->
                 ApiKey
             ),
             case Result of
+              {{#authMethods}}
+                {{#isApiKey}}
                 {true, Context}  ->
                     {true, Context, Req};
+                {{/isApiKey}}
+              {{/authMethods}}
                 false ->
                     AuthHeader = <<"">>,
                     {false, AuthHeader, Req}
diff --git a/modules/swagger-codegen/src/main/resources/erlang-server/handler.mustache b/modules/swagger-codegen/src/main/resources/erlang-server/handler.mustache
index 4c0bebc5ff4..4ed2e21a2ae 100644
--- a/modules/swagger-codegen/src/main/resources/erlang-server/handler.mustache
+++ b/modules/swagger-codegen/src/main/resources/erlang-server/handler.mustache
@@ -94,13 +94,15 @@ is_authorized(
     end;
   {{/isApiKey}}
 {{/authMethods}}
+{{/operation}}{{/operations}}
 {{^authMethods}}
 is_authorized(Req, State) ->
-    {true, Req, State};
+    {true, Req, State}.
 {{/authMethods}}
-{{/operation}}{{/operations}}
+{{#authMethods}}
 is_authorized(Req, State) ->
     {{false, <<"">>}, Req, State}.
+{{/authMethods}}
 
 -spec content_types_accepted(Req :: cowboy_req:req(), State :: state()) ->
     {
diff --git a/modules/swagger-codegen/src/main/resources/erlang-server/logic_handler.mustache b/modules/swagger-codegen/src/main/resources/erlang-server/logic_handler.mustache
index cb4ba201bf4..8baf9b81c20 100644
--- a/modules/swagger-codegen/src/main/resources/erlang-server/logic_handler.mustache
+++ b/modules/swagger-codegen/src/main/resources/erlang-server/logic_handler.mustache
@@ -1,11 +1,7 @@
 -module({{packageName}}_logic_handler).
 
 -export([handle_request/4]).
-{{#authMethods}}
-    {{#isApiKey}}
 -export([authorize_api_key/3]).
-    {{/isApiKey}}
-{{/authMethods}}
 -type context() :: #{binary() => any()}.
 -type handler_response() ::{
     Status :: cowboy:http_status(),
@@ -48,3 +44,9 @@ authorize_api_key(Handler, OperationID, ApiKey) ->
     Handler:authorize_api_key(OperationID, ApiKey).
     {{/isApiKey}}
 {{/authMethods}}
+{{^authMethods}}
+-spec authorize_api_key(Handler :: atom(), OperationID :: {{packageName}}_api:operation_id(), ApiKey :: binary()) ->
+    Result :: false.
+authorize_api_key(_Handler, _OperationID, _ApiKey) ->
+    false.
+{{/authMethods}}
diff --git a/modules/swagger-codegen/src/main/resources/erlang-server/server.mustache b/modules/swagger-codegen/src/main/resources/erlang-server/server.mustache
index 90a6388ea5d..348a473e9e3 100644
--- a/modules/swagger-codegen/src/main/resources/erlang-server/server.mustache
+++ b/modules/swagger-codegen/src/main/resources/erlang-server/server.mustache
@@ -9,6 +9,7 @@
 -spec child_spec( ID :: any(), #{
     ip            => inet:ip_address(),
     port          => inet:port_number(),
+    logic_handler => module(),
     net_opts      => []
 }) -> supervisor:child_spec().
 
diff --git a/samples/server/petstore/erlang-server/.swagger-codegen/VERSION b/samples/server/petstore/erlang-server/.swagger-codegen/VERSION
index 7fea99011a6..f9f7450d135 100644
--- a/samples/server/petstore/erlang-server/.swagger-codegen/VERSION
+++ b/samples/server/petstore/erlang-server/.swagger-codegen/VERSION
@@ -1 +1 @@
-2.2.3-SNAPSHOT
\ No newline at end of file
+2.3.0-SNAPSHOT
\ No newline at end of file
diff --git a/samples/server/petstore/erlang-server/priv/swagger.json b/samples/server/petstore/erlang-server/priv/swagger.json
index 3eef6c58413..808835928b6 100644
--- a/samples/server/petstore/erlang-server/priv/swagger.json
+++ b/samples/server/petstore/erlang-server/priv/swagger.json
@@ -9,7 +9,7 @@
       "email" : "apiteam@swagger.io"
     },
     "license" : {
-      "name" : "Apache 2.0",
+      "name" : "Apache-2.0",
       "url" : "http://www.apache.org/licenses/LICENSE-2.0.html"
     }
   },
@@ -166,7 +166,8 @@
         },
         "security" : [ {
           "petstore_auth" : [ "write:pets", "read:pets" ]
-        } ]
+        } ],
+        "deprecated" : true
       }
     },
     "/pet/{petId}" : {
@@ -683,6 +684,14 @@
       },
       "title" : "Pet Order",
       "description" : "An order for a pets from the pet store",
+      "example" : {
+        "petId" : 6,
+        "quantity" : 1,
+        "id" : 0,
+        "shipDate" : "2000-01-23T04:56:07.000+00:00",
+        "complete" : false,
+        "status" : "placed"
+      },
       "xml" : {
         "name" : "Order"
       }
@@ -700,6 +709,10 @@
       },
       "title" : "Pet catehgry",
       "description" : "A category for a pet",
+      "example" : {
+        "name" : "name",
+        "id" : 6
+      },
       "xml" : {
         "name" : "Category"
       }
@@ -737,6 +750,16 @@
       },
       "title" : "a User",
       "description" : "A User who is purchasing from the pet store",
+      "example" : {
+        "firstName" : "firstName",
+        "lastName" : "lastName",
+        "password" : "password",
+        "userStatus" : 6,
+        "phone" : "phone",
+        "id" : 0,
+        "email" : "email",
+        "username" : "username"
+      },
       "xml" : {
         "name" : "User"
       }
@@ -754,6 +777,10 @@
       },
       "title" : "Pet Tag",
       "description" : "A tag for a pet",
+      "example" : {
+        "name" : "name",
+        "id" : 1
+      },
       "xml" : {
         "name" : "Tag"
       }
@@ -801,6 +828,23 @@
       },
       "title" : "a Pet",
       "description" : "A pet for sale in the pet store",
+      "example" : {
+        "photoUrls" : [ "photoUrls", "photoUrls" ],
+        "name" : "doggie",
+        "id" : 0,
+        "category" : {
+          "name" : "name",
+          "id" : 6
+        },
+        "tags" : [ {
+          "name" : "name",
+          "id" : 1
+        }, {
+          "name" : "name",
+          "id" : 1
+        } ],
+        "status" : "available"
+      },
       "xml" : {
         "name" : "Pet"
       }
@@ -820,7 +864,12 @@
         }
       },
       "title" : "An uploaded response",
-      "description" : "Describes the result of uploading an image resource"
+      "description" : "Describes the result of uploading an image resource",
+      "example" : {
+        "code" : 0,
+        "type" : "type",
+        "message" : "message"
+      }
     }
   },
   "externalDocs" : {
diff --git a/samples/server/petstore/erlang-server/src/swagger.app.src b/samples/server/petstore/erlang-server/src/swagger.app.src
index 9016bde7219..f76b2b0a148 100644
--- a/samples/server/petstore/erlang-server/src/swagger.app.src
+++ b/samples/server/petstore/erlang-server/src/swagger.app.src
@@ -14,6 +14,6 @@
     {env, [
     ]},
     {modules, []},
-    {licenses, ["Apache 2.0"]},
+    {licenses, ["Apache-2.0"]},
     {links, []}
 ]}.
diff --git a/samples/server/petstore/erlang-server/src/swagger_api.erl b/samples/server/petstore/erlang-server/src/swagger_api.erl
index 2fbc055ad08..02e15583133 100644
--- a/samples/server/petstore/erlang-server/src/swagger_api.erl
+++ b/samples/server/petstore/erlang-server/src/swagger_api.erl
@@ -4,6 +4,8 @@
 -export([request_param_info/2]).
 -export([populate_request/3]).
 -export([validate_response/4]).
+%% exported to silence swagger complains
+-export([get_value/3, validate_response_body/4]).
 
 -type operation_id() :: atom().
 -type request_param() :: atom().
@@ -599,7 +601,7 @@ validate(Rule = {enum, Values}, Name, Value, _ValidatorState) ->
     end;
 
 validate(Rule = {max, Max}, Name, Value, _ValidatorState) ->
-    case Value >= Max of
+    case Value =< Max of
         true -> ok;
         false -> validation_error(Rule, Name)
     end;
@@ -611,7 +613,7 @@ validate(Rule = {exclusive_max, ExclusiveMax}, Name, Value, _ValidatorState) ->
     end;
 
 validate(Rule = {min, Min}, Name, Value, _ValidatorState) ->
-    case Value =< Min of
+    case Value >= Min of
         true -> ok;
         false -> validation_error(Rule, Name)
     end;
@@ -677,6 +679,8 @@ validation_error(ViolatedRule, Name) ->
 validation_error(ViolatedRule, Name, Info) ->
     throw({wrong_param, Name, ViolatedRule, Info}).
 
+-spec get_value(body | qs_val | header | binding, Name :: any(), Req0 :: cowboy_req:req()) ->
+    {Value :: any(), Req :: cowboy_req:req()}.
 get_value(body, _Name, Req0) ->
     {ok, Body, Req} = cowboy_req:body(Req0),
     Value = prepare_body(Body),
diff --git a/samples/server/petstore/erlang-server/src/swagger_pet_handler.erl b/samples/server/petstore/erlang-server/src/swagger_pet_handler.erl
index 4351da7da6c..d1c1a7b94d8 100644
--- a/samples/server/petstore/erlang-server/src/swagger_pet_handler.erl
+++ b/samples/server/petstore/erlang-server/src/swagger_pet_handler.erl
@@ -204,7 +204,7 @@ is_authorized(
 ) ->
 
 is_authorized(Req, State) ->
-    {{false, <<"">>}, Req, State}.
+    {true, Req, State}.
 
 -spec content_types_accepted(Req :: cowboy_req:req(), State :: state()) ->
     {
diff --git a/samples/server/petstore/erlang-server/src/swagger_server.erl b/samples/server/petstore/erlang-server/src/swagger_server.erl
index 4f56a326034..1c3b9218afe 100644
--- a/samples/server/petstore/erlang-server/src/swagger_server.erl
+++ b/samples/server/petstore/erlang-server/src/swagger_server.erl
@@ -9,6 +9,7 @@
 -spec child_spec( ID :: any(), #{
     ip            => inet:ip_address(),
     port          => inet:port_number(),
+    logic_handler => module(),
     net_opts      => []
 }) -> supervisor:child_spec().
 
diff --git a/samples/server/petstore/erlang-server/src/swagger_store_handler.erl b/samples/server/petstore/erlang-server/src/swagger_store_handler.erl
index 537ecdcb43f..adfeb256ae6 100644
--- a/samples/server/petstore/erlang-server/src/swagger_store_handler.erl
+++ b/samples/server/petstore/erlang-server/src/swagger_store_handler.erl
@@ -95,14 +95,6 @@ allowed_methods(Req, State) ->
         State :: state()
     }.
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'DeleteOrder' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
 is_authorized(
     Req0,
@@ -124,26 +116,10 @@ is_authorized(
         {false, AuthHeader, Req} ->  {{false, AuthHeader}, Req, State}
     end;
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'GetOrderById' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'PlaceOrder' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
 is_authorized(Req, State) ->
-    {{false, <<"">>}, Req, State}.
+    {true, Req, State}.
 
 -spec content_types_accepted(Req :: cowboy_req:req(), State :: state()) ->
     {
diff --git a/samples/server/petstore/erlang-server/src/swagger_user_handler.erl b/samples/server/petstore/erlang-server/src/swagger_user_handler.erl
index 4597046b956..9e6ccaae3bc 100644
--- a/samples/server/petstore/erlang-server/src/swagger_user_handler.erl
+++ b/samples/server/petstore/erlang-server/src/swagger_user_handler.erl
@@ -127,80 +127,16 @@ allowed_methods(Req, State) ->
         State :: state()
     }.
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'CreateUser' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'CreateUsersWithArrayInput' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'CreateUsersWithListInput' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'DeleteUser' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'GetUserByName' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'LoginUser' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'LogoutUser' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
-is_authorized(
-    Req0,
-    State = #state{
-        operation_id = 'UpdateUser' = OperationID,
-        logic_handler = LogicHandler
-    }
-) ->
-    {true, Req0, State};
 
 is_authorized(Req, State) ->
-    {{false, <<"">>}, Req, State}.
+    {true, Req, State}.
 
 -spec content_types_accepted(Req :: cowboy_req:req(), State :: state()) ->
     {