diff --git a/modules/openapi-generator/src/main/resources/erlang-client/api.mustache b/modules/openapi-generator/src/main/resources/erlang-client/api.mustache
index 04019e4439d..292cff3fb52 100644
--- a/modules/openapi-generator/src/main/resources/erlang-client/api.mustache
+++ b/modules/openapi-generator/src/main/resources/erlang-client/api.mustache
@@ -21,14 +21,14 @@
     Cfg = maps:get(cfg, Optional, application:get_env({{packageName}}_api, config, #{})),
 
     Method = {{httpMethod}},
-    Path = ["{{{replacedPathName}}}"],
+    Path = [?BASE_URL, "{{{replacedPathName}}}"],
     QS = {{#queryParams.isEmpty}}[]{{/queryParams.isEmpty}}{{^queryParams.isEmpty}}lists:flatten([{{#joinWithComma}}{{#queryParams}}{{#required}}{{#qsEncode}}{{this}}{{/qsEncode}}  {{/required}}{{/queryParams}}{{/joinWithComma}}])++{{packageName}}_utils:optional_params([{{#joinWithComma}}{{#queryParams}}{{^required}}  '{{baseName}}'{{/required}}{{/queryParams}}{{/joinWithComma}}], _OptionalParams){{/queryParams.isEmpty}},
     Headers = {{#headerParams.isEmpty}}[]{{/headerParams.isEmpty}}{{^headerParams.isEmpty}}[{{#headerParams}}{{#required}}  {<<"{{baseName}}">>, {{paramName}}}{{/required}}{{/headerParams}}]++{{packageName}}_utils:optional_params([{{#joinWithComma}}{{#headerParams}}{{^required}}  '{{baseName}}'{{/required}}{{/headerParams}}{{/joinWithComma}}], _OptionalParams){{/headerParams.isEmpty}},
     Body1 = {{^formParams.isEmpty}}{form, [{{#joinWithComma}}{{#formParams}}{{#required}}  {<<"{{baseName}}">>, {{paramName}}}{{/required}}{{/formParams}}{{/joinWithComma}}]++{{packageName}}_utils:optional_params([{{#joinWithComma}}{{#formParams}}{{^required}}  '{{baseName}}'{{/required}}{{/formParams}}{{/joinWithComma}}], _OptionalParams)}{{/formParams.isEmpty}}{{#formParams.isEmpty}}{{#bodyParams.isEmpty}}[]{{/bodyParams.isEmpty}}{{^bodyParams.isEmpty}}{{#bodyParams}}{{paramName}}{{/bodyParams}}{{/bodyParams.isEmpty}}{{/formParams.isEmpty}},
     ContentTypeHeader = {{packageName}}_utils:select_header_content_type([{{#consumes}}{{^-first}}, {{/-first}}<<"{{mediaType}}">>{{/consumes}}]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    {{packageName}}_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    {{packageName}}_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
     {{/operation}}
 
diff --git a/modules/openapi-generator/src/main/resources/erlang-client/utils.mustache b/modules/openapi-generator/src/main/resources/erlang-client/utils.mustache
index 6336a321e67..ed3d3e109b1 100644
--- a/modules/openapi-generator/src/main/resources/erlang-client/utils.mustache
+++ b/modules/openapi-generator/src/main/resources/erlang-client/utils.mustache
@@ -11,7 +11,8 @@
 request(_Ctx, Method, Path, QS, Headers, Body, Opts, Cfg) ->
     {Headers1, QS1} = update_params_with_auth(Cfg, Headers, QS),
     Host = maps:get(host, Cfg, "localhost:8001"),
-    Url = hackney_url:make_url(Host, Path, QS1),
+    Path1 = prepare_path(Path),
+    Url = hackney_url:make_url(Host, Path1, QS1),
 
     ConfigHackneyOpts = maps:get(hackney_opts, Cfg, []),
     Body1 = case lists:keyfind(<<"Content-Type">>, 1, Headers1) of
@@ -38,6 +39,14 @@ request(_Ctx, Method, Path, QS, Headers, Body, Opts, Cfg) ->
                             headers => RespHeaders}}
     end.
 
+prepare_path(Path) ->
+    lists:map(fun convert/1, Path).
+
+convert(PathPart) when is_integer(PathPart) ->
+    integer_to_binary(PathPart);
+convert(PathPart) when is_list(PathPart) or is_binary(PathPart) ->
+    PathPart.
+
 decode_response(Headers, Body) ->
     case lists:keyfind(<<"Content-Type">>, 1, Headers) of
         {_, <<"application/json", _/binary>>} ->
diff --git a/samples/client/petstore/erlang-client/.openapi-generator/VERSION b/samples/client/petstore/erlang-client/.openapi-generator/VERSION
index 7f4d792ec2c..4b448de535c 100644
--- a/samples/client/petstore/erlang-client/.openapi-generator/VERSION
+++ b/samples/client/petstore/erlang-client/.openapi-generator/VERSION
@@ -1 +1 @@
-6.5.0-SNAPSHOT
\ No newline at end of file
+5.3.0-SNAPSHOT
\ No newline at end of file
diff --git a/samples/client/petstore/erlang-client/src/petstore_pet_api.erl b/samples/client/petstore/erlang-client/src/petstore_pet_api.erl
index c4df7b91ac6..e406257a76e 100644
--- a/samples/client/petstore/erlang-client/src/petstore_pet_api.erl
+++ b/samples/client/petstore/erlang-client/src/petstore_pet_api.erl
@@ -12,6 +12,7 @@
 -define(BASE_URL, <<"/v2">>).
 
 %% @doc Add a new pet to the store
+%% 
 -spec add_pet(ctx:ctx(), petstore_pet:petstore_pet()) -> {ok, petstore_pet:petstore_pet(), petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 add_pet(Ctx, PetstorePet) ->
     add_pet(Ctx, PetstorePet, #{}).
@@ -22,16 +23,17 @@ add_pet(Ctx, PetstorePet, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = post,
-    Path = ["/pet"],
+    Path = [?BASE_URL, "/pet"],
     QS = [],
     Headers = [],
     Body1 = PetstorePet,
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"application/json">>, <<"application/xml">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Deletes a pet
+%% 
 -spec delete_pet(ctx:ctx(), integer()) -> {ok, [], petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 delete_pet(Ctx, PetId) ->
     delete_pet(Ctx, PetId, #{}).
@@ -42,14 +44,14 @@ delete_pet(Ctx, PetId, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = delete,
-    Path = ["/pet/", PetId, ""],
+    Path = [?BASE_URL, "/pet/", PetId, ""],
     QS = [],
     Headers = []++petstore_utils:optional_params(['api_key'], _OptionalParams),
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Finds Pets by status
 %% Multiple status values can be provided with comma separated strings
@@ -63,14 +65,14 @@ find_pets_by_status(Ctx, Status, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = get,
-    Path = ["/pet/findByStatus"],
+    Path = [?BASE_URL, "/pet/findByStatus"],
     QS = lists:flatten([[{<<"status">>, X} || X <- Status]])++petstore_utils:optional_params([], _OptionalParams),
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Finds Pets by tags
 %% Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
@@ -84,14 +86,14 @@ find_pets_by_tags(Ctx, Tags, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = get,
-    Path = ["/pet/findByTags"],
+    Path = [?BASE_URL, "/pet/findByTags"],
     QS = lists:flatten([[{<<"tags">>, X} || X <- Tags]])++petstore_utils:optional_params([], _OptionalParams),
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Find pet by ID
 %% Returns a single pet
@@ -105,16 +107,17 @@ get_pet_by_id(Ctx, PetId, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = get,
-    Path = ["/pet/", PetId, ""],
+    Path = [?BASE_URL, "/pet/", PetId, ""],
     QS = [],
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Update an existing pet
+%% 
 -spec update_pet(ctx:ctx(), petstore_pet:petstore_pet()) -> {ok, petstore_pet:petstore_pet(), petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 update_pet(Ctx, PetstorePet) ->
     update_pet(Ctx, PetstorePet, #{}).
@@ -125,16 +128,17 @@ update_pet(Ctx, PetstorePet, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = put,
-    Path = ["/pet"],
+    Path = [?BASE_URL, "/pet"],
     QS = [],
     Headers = [],
     Body1 = PetstorePet,
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"application/json">>, <<"application/xml">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Updates a pet in the store with form data
+%% 
 -spec update_pet_with_form(ctx:ctx(), integer()) -> {ok, [], petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 update_pet_with_form(Ctx, PetId) ->
     update_pet_with_form(Ctx, PetId, #{}).
@@ -145,16 +149,17 @@ update_pet_with_form(Ctx, PetId, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = post,
-    Path = ["/pet/", PetId, ""],
+    Path = [?BASE_URL, "/pet/", PetId, ""],
     QS = [],
     Headers = [],
     Body1 = {form, []++petstore_utils:optional_params(['name', 'status'], _OptionalParams)},
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"application/x-www-form-urlencoded">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc uploads an image
+%% 
 -spec upload_file(ctx:ctx(), integer()) -> {ok, petstore_api_response:petstore_api_response(), petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 upload_file(Ctx, PetId) ->
     upload_file(Ctx, PetId, #{}).
@@ -165,13 +170,13 @@ upload_file(Ctx, PetId, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = post,
-    Path = ["/pet/", PetId, "/uploadImage"],
+    Path = [?BASE_URL, "/pet/", PetId, "/uploadImage"],
     QS = [],
     Headers = [],
     Body1 = {form, []++petstore_utils:optional_params(['additionalMetadata', 'file'], _OptionalParams)},
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"multipart/form-data">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 
diff --git a/samples/client/petstore/erlang-client/src/petstore_store_api.erl b/samples/client/petstore/erlang-client/src/petstore_store_api.erl
index 5bebc5574ad..bc45dce6a7d 100644
--- a/samples/client/petstore/erlang-client/src/petstore_store_api.erl
+++ b/samples/client/petstore/erlang-client/src/petstore_store_api.erl
@@ -19,14 +19,14 @@ delete_order(Ctx, OrderId, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = delete,
-    Path = ["/store/order/", OrderId, ""],
+    Path = [?BASE_URL, "/store/order/", OrderId, ""],
     QS = [],
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Returns pet inventories by status
 %% Returns a map of status codes to quantities
@@ -40,14 +40,14 @@ get_inventory(Ctx, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = get,
-    Path = ["/store/inventory"],
+    Path = [?BASE_URL, "/store/inventory"],
     QS = [],
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Find purchase order by ID
 %% For valid response try integer IDs with value <= 5 or > 10. Other values will generate exceptions
@@ -61,16 +61,17 @@ get_order_by_id(Ctx, OrderId, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = get,
-    Path = ["/store/order/", OrderId, ""],
+    Path = [?BASE_URL, "/store/order/", OrderId, ""],
     QS = [],
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Place an order for a pet
+%% 
 -spec place_order(ctx:ctx(), petstore_order:petstore_order()) -> {ok, petstore_order:petstore_order(), petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 place_order(Ctx, PetstoreOrder) ->
     place_order(Ctx, PetstoreOrder, #{}).
@@ -81,13 +82,13 @@ place_order(Ctx, PetstoreOrder, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = post,
-    Path = ["/store/order"],
+    Path = [?BASE_URL, "/store/order"],
     QS = [],
     Headers = [],
     Body1 = PetstoreOrder,
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"application/json">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 
diff --git a/samples/client/petstore/erlang-client/src/petstore_user_api.erl b/samples/client/petstore/erlang-client/src/petstore_user_api.erl
index 6f6a5b13593..14c52af676f 100644
--- a/samples/client/petstore/erlang-client/src/petstore_user_api.erl
+++ b/samples/client/petstore/erlang-client/src/petstore_user_api.erl
@@ -23,16 +23,17 @@ create_user(Ctx, PetstoreUser, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = post,
-    Path = ["/user"],
+    Path = [?BASE_URL, "/user"],
     QS = [],
     Headers = [],
     Body1 = PetstoreUser,
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"application/json">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Creates list of users with given input array
+%% 
 -spec create_users_with_array_input(ctx:ctx(), list()) -> {ok, [], petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 create_users_with_array_input(Ctx, PetstoreUserArray) ->
     create_users_with_array_input(Ctx, PetstoreUserArray, #{}).
@@ -43,16 +44,17 @@ create_users_with_array_input(Ctx, PetstoreUserArray, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = post,
-    Path = ["/user/createWithArray"],
+    Path = [?BASE_URL, "/user/createWithArray"],
     QS = [],
     Headers = [],
     Body1 = PetstoreUserArray,
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"application/json">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Creates list of users with given input array
+%% 
 -spec create_users_with_list_input(ctx:ctx(), list()) -> {ok, [], petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 create_users_with_list_input(Ctx, PetstoreUserArray) ->
     create_users_with_list_input(Ctx, PetstoreUserArray, #{}).
@@ -63,14 +65,14 @@ create_users_with_list_input(Ctx, PetstoreUserArray, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = post,
-    Path = ["/user/createWithList"],
+    Path = [?BASE_URL, "/user/createWithList"],
     QS = [],
     Headers = [],
     Body1 = PetstoreUserArray,
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"application/json">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Delete user
 %% This can only be done by the logged in user.
@@ -84,16 +86,17 @@ delete_user(Ctx, Username, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = delete,
-    Path = ["/user/", Username, ""],
+    Path = [?BASE_URL, "/user/", Username, ""],
     QS = [],
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Get user by user name
+%% 
 -spec get_user_by_name(ctx:ctx(), binary()) -> {ok, petstore_user:petstore_user(), petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 get_user_by_name(Ctx, Username) ->
     get_user_by_name(Ctx, Username, #{}).
@@ -104,16 +107,17 @@ get_user_by_name(Ctx, Username, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = get,
-    Path = ["/user/", Username, ""],
+    Path = [?BASE_URL, "/user/", Username, ""],
     QS = [],
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Logs user into the system
+%% 
 -spec login_user(ctx:ctx(), binary(), binary()) -> {ok, binary(), petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 login_user(Ctx, Username, Password) ->
     login_user(Ctx, Username, Password, #{}).
@@ -124,16 +128,17 @@ login_user(Ctx, Username, Password, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = get,
-    Path = ["/user/login"],
+    Path = [?BASE_URL, "/user/login"],
     QS = lists:flatten([{<<"username">>, Username}, {<<"password">>, Password}])++petstore_utils:optional_params([], _OptionalParams),
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Logs out current logged in user session
+%% 
 -spec logout_user(ctx:ctx()) -> {ok, [], petstore_utils:response_info()} | {ok, hackney:client_ref()} | {error, term(), petstore_utils:response_info()}.
 logout_user(Ctx) ->
     logout_user(Ctx, #{}).
@@ -144,14 +149,14 @@ logout_user(Ctx, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = get,
-    Path = ["/user/logout"],
+    Path = [?BASE_URL, "/user/logout"],
     QS = [],
     Headers = [],
     Body1 = [],
     ContentTypeHeader = petstore_utils:select_header_content_type([]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 %% @doc Updated user
 %% This can only be done by the logged in user.
@@ -165,13 +170,13 @@ update_user(Ctx, Username, PetstoreUser, Optional) ->
     Cfg = maps:get(cfg, Optional, application:get_env(petstore_api, config, #{})),
 
     Method = put,
-    Path = ["/user/", Username, ""],
+    Path = [?BASE_URL, "/user/", Username, ""],
     QS = [],
     Headers = [],
     Body1 = PetstoreUser,
     ContentTypeHeader = petstore_utils:select_header_content_type([<<"application/json">>]),
     Opts = maps:get(hackney_opts, Optional, []),
 
-    petstore_utils:request(Ctx, Method, [?BASE_URL, Path], QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
+    petstore_utils:request(Ctx, Method, Path, QS, ContentTypeHeader++Headers, Body1, Opts, Cfg).
 
 
diff --git a/samples/client/petstore/erlang-client/src/petstore_utils.erl b/samples/client/petstore/erlang-client/src/petstore_utils.erl
index 24598b36764..e2d843841f9 100644
--- a/samples/client/petstore/erlang-client/src/petstore_utils.erl
+++ b/samples/client/petstore/erlang-client/src/petstore_utils.erl
@@ -11,7 +11,8 @@
 request(_Ctx, Method, Path, QS, Headers, Body, Opts, Cfg) ->
     {Headers1, QS1} = update_params_with_auth(Cfg, Headers, QS),
     Host = maps:get(host, Cfg, "localhost:8001"),
-    Url = hackney_url:make_url(Host, Path, QS1),
+    Path1 = prepare_path(Path),
+    Url = hackney_url:make_url(Host, Path1, QS1),
 
     ConfigHackneyOpts = maps:get(hackney_opts, Cfg, []),
     Body1 = case lists:keyfind(<<"Content-Type">>, 1, Headers1) of
@@ -38,6 +39,14 @@ request(_Ctx, Method, Path, QS, Headers, Body, Opts, Cfg) ->
                             headers => RespHeaders}}
     end.
 
+prepare_path(Path) ->
+    lists:map(fun convert/1, Path).
+
+convert(PathPart) when is_integer(PathPart) ->
+    integer_to_binary(PathPart);
+convert(PathPart) when is_list(PathPart) or is_binary(PathPart) ->
+    PathPart.
+
 decode_response(Headers, Body) ->
     case lists:keyfind(<<"Content-Type">>, 1, Headers) of
         {_, <<"application/json", _/binary>>} ->
@@ -72,12 +81,12 @@ auth_with_prefix(Cfg, Key, Token) ->
 
 update_params_with_auth(Cfg, Headers, QS) ->
     AuthSettings = maps:get(auth, Cfg, #{}),
-    Auths = #{ 'petstore_auth' =>
-                #{type => 'oauth2',
-                  key => <<"Authorization">>,
-                  in => header}, 'api_key' =>
+    Auths = #{ 'api_key' =>
                 #{type => 'apiKey',
                   key => <<"api_key">>,
+                  in => header}, 'petstore_auth' =>
+                #{type => 'oauth2',
+                  key => <<"Authorization">>,
                   in => header}},
 
     maps:fold(fun(AuthName, #{type := _Type,