Add support for delete and GET via file_id for gemini

litellm/llms/gemini/files/transformation.py

@@ -210,7 +210,7 @@ def transform_retrieve_file_request(
         We expect file_id to be the URI (e.g. https://generativelanguage.googleapis.com/v1beta/files/...)
         as returned by the upload response.
         """
-        api_key = litellm_params.get("api_key")
+        api_key = litellm_params.get("api_key") or self.get_api_key()
         if not api_key:
             raise ValueError("api_key is required")
 
@@ -222,7 +222,8 @@ def transform_retrieve_file_request(
             api_base = api_base.rstrip("/")
             url = "{}/v1beta/{}?key={}".format(api_base, file_id, api_key)
 
-        return url, {"Content-Type": "application/json"}
+        # Return empty params dict - API key is already in URL, no query params needed
+        return url, {}
 
     def transform_retrieve_file_response(
         self,
@@ -299,7 +300,7 @@ def transform_delete_file_request(
             # Extract the file path from full URI
             file_name = file_id.split("/v1beta/")[-1]
         else:
-            file_name = file_id
+            file_name = file_id if file_id.startswith("files/") else f"files/{file_id}"
 
         # Construct the delete URL
         url = f"{api_base}/v1beta/{file_name}"

tests/test_litellm/llms/gemini/files/__init__.py

@@ -0,0 +1 @@
+"""Tests for Gemini files functionality"""

tests/test_litellm/llms/gemini/files/test_gemini_files_transformation.py

@@ -0,0 +1,298 @@
+"""
+Test Google AI Studio (Gemini) files transformation functionality
+"""
+
+import os
+import pytest
+from unittest.mock import Mock, patch
+
+import httpx
+
+from litellm.llms.gemini.files.transformation import GoogleAIStudioFilesHandler
+from litellm.types.llms.openai import OpenAIFileObject
+
+
+class TestGoogleAIStudioFilesTransformation:
+    """Test Google AI Studio files transformation"""
+
+    def setup_method(self):
+        """Setup test method"""
+        self.handler = GoogleAIStudioFilesHandler()
+
+    def test_transform_retrieve_file_request_with_full_uri(self):
+        """
+        Test that transform_retrieve_file_request returns empty params dict
+        to avoid 'Content-Type' query parameter error
+
+        Regression test for: https://github.com/BerriAI/litellm/issues/XXX
+        When retrieving a file, the API was incorrectly trying to pass Content-Type
+        as a query parameter, which Gemini API rejected.
+        """
+        file_id = "https://generativelanguage.googleapis.com/v1beta/files/test123"
+        litellm_params = {"api_key": "test-api-key"}
+
+        url, params = self.handler.transform_retrieve_file_request(
+            file_id=file_id,
+            optional_params={},
+            litellm_params=litellm_params,
+        )
+
+        # Verify URL is constructed correctly with API key
+        assert "key=test-api-key" in url
+        assert file_id in url
+
+        # CRITICAL: params should be empty dict, not contain Content-Type or any other params
+        # These would be incorrectly interpreted as query parameters
+        assert params == {}, f"Expected empty params dict, got: {params}"
+        assert "Content-Type" not in params, "Content-Type should not be in query params"
+
+    def test_transform_retrieve_file_request_with_file_name_only(self):
+        """
+        Test that transform_retrieve_file_request handles file_id without full URI
+        """
+        file_id = "files/test123"
+        litellm_params = {"api_key": "test-api-key"}
+
+        url, params = self.handler.transform_retrieve_file_request(
+            file_id=file_id,
+            optional_params={},
+            litellm_params=litellm_params,
+        )
+
+        # Verify URL is constructed correctly
+        assert "generativelanguage.googleapis.com" in url
+        assert file_id in url
+        assert "key=test-api-key" in url
+
+        # CRITICAL: params should be empty dict
+        assert params == {}, f"Expected empty params dict, got: {params}"
+        assert "Content-Type" not in params, "Content-Type should not be in query params"
+
+    @patch.dict('os.environ', {}, clear=True)
+    @patch('litellm.llms.gemini.common_utils.get_secret_str', return_value=None)
+    def test_transform_retrieve_file_request_missing_api_key(self, mock_get_secret):
+        """Test that transform_retrieve_file_request raises error when API key is missing"""
+        file_id = "files/test123"
+        litellm_params = {}
+
+        with pytest.raises(ValueError, match="api_key is required"):
+            self.handler.transform_retrieve_file_request(
+                file_id=file_id,
+                optional_params={},
+                litellm_params=litellm_params,
+            )
+
+    def test_transform_retrieve_file_response_success(self):
+        """Test successful transformation of Gemini file retrieval response"""
+        # Mock response data from Gemini API
+        mock_response_data = {
+            "name": "files/test123",
+            "displayName": "test_file.pdf",
+            "mimeType": "application/pdf",
+            "sizeBytes": "1024",
+            "createTime": "2024-01-15T10:30:00.123456Z",
+            "updateTime": "2024-01-15T10:30:00.123456Z",
+            "expirationTime": "2024-01-17T10:30:00.123456Z",
+            "sha256Hash": "abcd1234",
+            "uri": "https://generativelanguage.googleapis.com/v1beta/files/test123",
+            "state": "ACTIVE",
+        }
+
+        # Create mock httpx response
+        mock_response = Mock(spec=httpx.Response)
+        mock_response.json.return_value = mock_response_data
+
+        # Create mock logging object
+        mock_logging_obj = Mock()
+
+        # Transform response
+        result = self.handler.transform_retrieve_file_response(
+            raw_response=mock_response,
+            logging_obj=mock_logging_obj,
+            litellm_params={},
+        )
+
+        # Verify transformation
+        assert isinstance(result, OpenAIFileObject)
+        assert result.id == mock_response_data["uri"]
+        assert result.filename == mock_response_data["displayName"]
+        assert result.bytes == int(mock_response_data["sizeBytes"])
+        assert result.object == "file"
+        assert result.purpose == "user_data"
+        assert result.status == "processed"  # ACTIVE state maps to processed
+        assert result.status_details is None
+
+    def test_transform_retrieve_file_response_failed_state(self):
+        """Test transformation of Gemini file retrieval response with FAILED state"""
+        mock_response_data = {
+            "name": "files/test123",
+            "displayName": "test_file.pdf",
+            "mimeType": "application/pdf",
+            "sizeBytes": "1024",
+            "createTime": "2024-01-15T10:30:00.123456Z",
+            "uri": "https://generativelanguage.googleapis.com/v1beta/files/test123",
+            "state": "FAILED",
+            "error": {"message": "Upload failed", "code": "INTERNAL"},
+        }
+
+        mock_response = Mock(spec=httpx.Response)
+        mock_response.json.return_value = mock_response_data
+        mock_logging_obj = Mock()
+
+        result = self.handler.transform_retrieve_file_response(
+            raw_response=mock_response,
+            logging_obj=mock_logging_obj,
+            litellm_params={},
+        )
+
+        # Verify error state handling
+        assert result.status == "error"
+        assert result.status_details is not None
+        assert "message" in result.status_details
+
+    def test_transform_retrieve_file_response_processing_state(self):
+        """Test transformation of Gemini file retrieval response with PROCESSING state"""
+        mock_response_data = {
+            "name": "files/test123",
+            "displayName": "test_file.pdf",
+            "mimeType": "application/pdf",
+            "sizeBytes": "1024",
+            "createTime": "2024-01-15T10:30:00.123456Z",
+            "uri": "https://generativelanguage.googleapis.com/v1beta/files/test123",
+            "state": "PROCESSING",
+        }
+
+        mock_response = Mock(spec=httpx.Response)
+        mock_response.json.return_value = mock_response_data
+        mock_logging_obj = Mock()
+
+        result = self.handler.transform_retrieve_file_response(
+            raw_response=mock_response,
+            logging_obj=mock_logging_obj,
+            litellm_params={},
+        )
+
+        # PROCESSING state should map to "uploaded" status
+        assert result.status == "uploaded"
+
+    def test_transform_retrieve_file_response_missing_createTime(self):
+        """
+        Test that transform_retrieve_file_response raises proper error when createTime is missing
+
+        This tests the error scenario that occurs when API returns an error response
+        without the expected file metadata fields.
+        """
+        # Mock error response from Gemini API (missing createTime)
+        mock_response_data = {
+            "error": {
+                "code": 400,
+                "message": "Invalid request",
+                "status": "INVALID_ARGUMENT",
+            }
+        }
+
+        mock_response = Mock(spec=httpx.Response)
+        mock_response.json.return_value = mock_response_data
+        mock_logging_obj = Mock()
+
+        # Should raise ValueError with helpful message
+        with pytest.raises(ValueError, match="Error parsing file retrieve response"):
+            self.handler.transform_retrieve_file_response(
+                raw_response=mock_response,
+                logging_obj=mock_logging_obj,
+                litellm_params={},
+            )
+
+    def test_validate_environment(self):
+        """Test that validate_environment properly adds API key to headers"""
+        headers = {}
+        api_key = "test-gemini-api-key"
+
+        result_headers = self.handler.validate_environment(
+            headers=headers,
+            model="gemini-pro",
+            messages=[],
+            optional_params={},
+            litellm_params={},
+            api_key=api_key,
+        )
+
+        # Verify API key is added to headers
+        assert "x-goog-api-key" in result_headers
+        assert result_headers["x-goog-api-key"] == api_key
+
+    @patch.dict('os.environ', {}, clear=True)
+    @patch('litellm.llms.gemini.common_utils.get_secret_str', return_value=None)
+    def test_validate_environment_missing_api_key(self, mock_get_secret):
+        """Test that validate_environment raises error when API key is missing"""
+        headers = {}
+
+        with pytest.raises(
+            ValueError, match="GEMINI_API_KEY is required for Google AI Studio file operations"
+        ):
+            self.handler.validate_environment(
+                headers=headers,
+                model="gemini-pro",
+                messages=[],
+                optional_params={},
+                litellm_params={},
+                api_key=None,
+            )
+
+    def test_get_complete_url(self):
+        """Test that get_complete_url constructs proper upload URL"""
+        api_base = "https://generativelanguage.googleapis.com"
+        api_key = "test-api-key"
+
+        url = self.handler.get_complete_url(
+            api_base=api_base,
+            api_key=api_key,
+            model="gemini-pro",
+            optional_params={},
+            litellm_params={},
+        )
+
+        # Verify URL structure
+        assert api_base in url
+        assert "upload/v1beta/files" in url
+        assert f"key={api_key}" in url
+
+    def test_transform_delete_file_request_with_full_uri(self):
+        """Test delete file request transformation with full URI"""
+        file_id = "https://generativelanguage.googleapis.com/v1beta/files/test123"
+        litellm_params = {
+            "api_key": "test-api-key",
+            "api_base": "https://generativelanguage.googleapis.com",
+        }
+
+        url, params = self.handler.transform_delete_file_request(
+            file_id=file_id,
+            optional_params={},
+            litellm_params=litellm_params,
+        )
+
+        # Verify URL extraction
+        assert "files/test123" in url
+        assert "generativelanguage.googleapis.com" in url
+
+        # Params should be empty (API key goes in header via validate_environment)
+        assert params == {}
+
+    def test_transform_delete_file_request_with_file_name_only(self):
+        """Test delete file request transformation with file name only"""
+        file_id = "files/test123"
+        litellm_params = {
+            "api_key": "test-api-key",
+            "api_base": "https://generativelanguage.googleapis.com",
+        }
+
+        url, params = self.handler.transform_delete_file_request(
+            file_id=file_id,
+            optional_params={},
+            litellm_params=litellm_params,
+        )
+
+        # Verify URL construction
+        assert file_id in url
+        assert "generativelanguage.googleapis.com" in url
+        assert params == {}