feat chaotic: implement response headers

commit_hash:79d7878aada47d240d0b69b0c938e2d910f69dc0

Author: segoon

.mapping.json

@@ -107,6 +107,7 @@
   "chaotic-openapi/integration_tests/clients/external-refs/two.yaml":"taxi/uservices/userver/chaotic-openapi/integration_tests/clients/external-refs/two.yaml",
   "chaotic-openapi/integration_tests/clients/multiple-content-types/openapi.yaml":"taxi/uservices/userver/chaotic-openapi/integration_tests/clients/multiple-content-types/openapi.yaml",
   "chaotic-openapi/integration_tests/clients/parameters/openapi.yaml":"taxi/uservices/userver/chaotic-openapi/integration_tests/clients/parameters/openapi.yaml",
+  "chaotic-openapi/integration_tests/clients/response-headers/openapi.yaml":"taxi/uservices/userver/chaotic-openapi/integration_tests/clients/response-headers/openapi.yaml",
   "chaotic-openapi/integration_tests/clients/swagger/swagger.yaml":"taxi/uservices/userver/chaotic-openapi/integration_tests/clients/swagger/swagger.yaml",
   "chaotic-openapi/integration_tests/clients/tags/openapi.yaml":"taxi/uservices/userver/chaotic-openapi/integration_tests/clients/tags/openapi.yaml",
   "chaotic-openapi/integration_tests/clients/test-middleware/openapi.yaml":"taxi/uservices/userver/chaotic-openapi/integration_tests/clients/test-middleware/openapi.yaml",

chaotic-openapi/chaotic_openapi/back/cpp_client/templates/responses.cpp.jinja

@@ -62,7 +62,15 @@ namespace {{ namespace }} {
                 {% endif %}
             {% endif %}
 
-            {# TODO: headers #}
+            {% for header in response.headers %}
+            {
+              static const USERVER_NAMESPACE::http::headers::PredefinedHeader kHeader("{{ header.raw_name }}");
+              auto it = http_response.headers().find(kHeader);
+              if (it != http_response.headers().end()) {
+                r.{{ header.cpp_name }} = it->second;
+              }
+            }
+            {% endfor %}
 
             {% if response.is_error() %}
               throw r;

chaotic-openapi/chaotic_openapi/back/cpp_client/templates/responses.hpp.jinja

@@ -65,7 +65,12 @@ namespace {{ namespace }} {
             {% endif %}
 
             {% for header in response.headers %}
-              {{ NOT_IMPLEMENTED("response header") }}
+              {% if header.cpp_type.nullable %}
+                std::optional<{{ header.cpp_type.cpp_global_name() }}>
+              {%- else -%}
+                {{ header.cpp_type.cpp_global_name() }}
+              {% endif -%}
+              {{ header.cpp_name }};
             {% endfor %}
           };
         {% endfor %}

chaotic-openapi/chaotic_openapi/back/cpp_client/types.py

@@ -183,6 +183,8 @@ def responses_declaration_includes(self) -> List[str]:
             for response in op.responses:
                 for _, body in response.body.items():
                     includes.update(body.declaration_includes())
+                for header in response.headers:
+                    includes.update(header.declaration_includes())
         return sorted(includes)
 
     def responses_definitions_includes(self) -> List[str]:

chaotic-openapi/integration_tests/clients/response-headers/openapi.yaml

@@ -0,0 +1,22 @@
+openapi: 3.0.0
+info:
+    title: test-object client
+    version: '1.0'
+
+paths:
+    /test1:
+        post:
+            responses:
+                '200':
+                    description: OK
+                    content:
+                        application/json:
+                            schema:
+                                type: object
+                                additionalProperties: false
+                                properties: {}
+                    headers:
+                        X-Header:
+                            schema:
+                                type: string
+components: {}

chaotic-openapi/integration_tests/src/responses_test.cpp

@@ -7,6 +7,7 @@
 #include <userver/utest/http_server_mock.hpp>
 
 #include <client/multiple_content_types/responses.hpp>
+#include <client/response_headers/responses.hpp>
 #include <client/test_object/client_impl.hpp>
 #include <client/test_object/responses.hpp>
 
@@ -182,6 +183,23 @@ UTEST(ResponsesMultipleContentType, InvalidSchema) {
     UEXPECT_THROW(client::ParseResponse(*http_response), client::ExceptionWithStatusCode);
 }
 
+UTEST(ResponsesMultipleContentType, HeaderParse) {
+    const utest::HttpServerMock http_server([](const utest::HttpServerMock::HttpRequest&) {
+        utest::HttpServerMock::HttpResponse r;
+        r.response_status = 200;
+        r.body = R"({})";
+        r.headers[std::string{"Content-Type"}] = "application/json";
+        r.headers[std::string{"X-Header"}] = "string";
+        return r;
+    });
+    auto http_client = utest::CreateHttpClient();
+    auto http_response = http_client->CreateRequest().get(http_server.GetBaseUrl() + "/test1").perform();
+
+    namespace client = ::clients::response_headers::test1_post;
+    auto response = client::ParseResponse(*http_response);
+    EXPECT_EQ(response.X_Header, "string");
+}
+
 }  // namespace
 
 USERVER_NAMESPACE_END