fix: Allow passing data with files in multipart. (Fixes #351)

end_to_end_tests/golden-record/my_test_api_client/api/tests/upload_file_tests_upload_post.py

@@ -5,7 +5,7 @@
 from ...client import Client
 from ...models.body_upload_file_tests_upload_post import BodyUploadFileTestsUploadPost
 from ...models.http_validation_error import HTTPValidationError
-from ...types import UNSET, Response, Unset
+from ...types import UNSET, File, Response, Unset
 
 
 def _get_kwargs(
@@ -22,12 +22,21 @@ def _get_kwargs(
     if keep_alive is not UNSET:
         headers["keep-alive"] = keep_alive
 
+    files = {}
+    data = {}
+    for key, value in multipart_data.to_dict().items():
+        if isinstance(value, File):
+            files[key] = value
+        else:
+            data[key] = value
+
     return {
         "url": url,
         "headers": headers,
         "cookies": cookies,
         "timeout": client.get_timeout(),
-        "files": multipart_data.to_dict(),
+        "files": files,
+        "data": data,
     }
 
 

end_to_end_tests/golden-record/my_test_api_client/models/body_upload_file_tests_upload_post.py

@@ -1,9 +1,9 @@
 from io import BytesIO
-from typing import Any, Dict, Type, TypeVar
+from typing import Any, Dict, Type, TypeVar, Union
 
 import attr
 
-from ..types import File
+from ..types import UNSET, File, Unset
 
 T = TypeVar("T", bound="BodyUploadFileTestsUploadPost")
 
@@ -13,16 +13,21 @@ class BodyUploadFileTestsUploadPost:
     """  """
 
     some_file: File
+    some_string: Union[Unset, str] = "some_default_string"
 
     def to_dict(self) -> Dict[str, Any]:
         some_file = self.some_file.to_tuple()
 
+        some_string = self.some_string
+
         field_dict: Dict[str, Any] = {}
         field_dict.update(
             {
                 "some_file": some_file,
             }
         )
+        if some_string is not UNSET:
+            field_dict["some_string"] = some_string
 
         return field_dict
 
@@ -31,8 +36,11 @@ def from_dict(cls: Type[T], src_dict: Dict[str, Any]) -> T:
         d = src_dict.copy()
         some_file = File(payload=BytesIO(d.pop("some_file")))
 
+        some_string = d.pop("some_string", UNSET)
+
         body_upload_file_tests_upload_post = cls(
             some_file=some_file,
+            some_string=some_string,
         )
 
         return body_upload_file_tests_upload_post

end_to_end_tests/openapi.json

@@ -923,6 +923,11 @@
             "title": "Some File",
             "type": "string",
             "format": "binary"
+          },
+          "some_string": {
+            "title": "Some String",
+            "type": "string",
+            "default": "some_default_string"
           }
         },
         "additionalProperties": false

openapi_python_client/templates/endpoint_module.py.jinja

@@ -4,7 +4,7 @@ import httpx
 from attr import asdict
 
 from ...client import AuthenticatedClient, Client
-from ...types import Response, UNSET
+from ...types import Response, UNSET{% if endpoint.multipart_body_reference %}, File {% endif %}
 
 {% for relative in endpoint.relative_imports %}
 {{ relative }}
@@ -36,18 +36,27 @@ def _get_kwargs(
 
     {{ json_body(endpoint) | indent(4) }}
 
+    {% if endpoint.multipart_body_reference %}
+    files = {}
+    data = {}
+    for key, value in multipart_data.to_dict().items():
+         if isinstance(value, File):
+             files[key] = value
+         else:
+             data[key] = value
+    {% endif %}
+
     return {
         "url": url,
         "headers": headers,
         "cookies": cookies,
         "timeout": client.get_timeout(),
         {% if endpoint.form_body_reference %}
         "data": asdict(form_data),
-        {% endif %}
-        {% if endpoint.multipart_body_reference %}
-        "files": multipart_data.to_dict(),
-        {% endif %}
-        {% if endpoint.json_body %}
+        {% elif endpoint.multipart_body_reference %}
+        "files": files,
+        "data": data,
+        {% elif endpoint.json_body %}
         "json": {{ "json_" + endpoint.json_body.python_name }},
         {% endif %}
         {% if endpoint.query_parameters %}