🌿 Fern Regeneration -- January 3, 2026

.fern/metadata.json

@@ -1,5 +1,6 @@
 {
-  "cliVersion": "3.27.0",
+  "cliVersion": "3.32.0",
   "generatorName": "fernapi/fern-python-sdk",
-  "generatorVersion": "4.46.3"
+  "generatorVersion": "4.46.6",
+  "sdkVersion": "0.1.16"
 }

pyproject.toml

@@ -4,7 +4,7 @@ dynamic = ["version"]
 
 [tool.poetry]
 name = "credal"
-version = "0.1.15"
+version = "0.1.16"
 description = ""
 readme = "README.md"
 authors = []

src/credal/core/client_wrapper.py

@@ -22,10 +22,10 @@ def __init__(
 
     def get_headers(self) -> typing.Dict[str, str]:
         headers: typing.Dict[str, str] = {
-            "User-Agent": "credal/0.1.15",
+            "User-Agent": "credal/0.1.16",
             "X-Fern-Language": "Python",
             "X-Fern-SDK-Name": "credal",
-            "X-Fern-SDK-Version": "0.1.15",
+            "X-Fern-SDK-Version": "0.1.16",
             **(self.get_custom_headers() or {}),
         }
         headers["Authorization"] = f"Bearer {self._get_api_key()}"

src/credal/core/http_client.py

@@ -5,7 +5,6 @@
 import re
 import time
 import typing
-import urllib.parse
 from contextlib import asynccontextmanager, contextmanager
 from random import random
 
@@ -123,6 +122,30 @@ def _should_retry(response: httpx.Response) -> bool:
     return response.status_code >= 500 or response.status_code in retryable_400s
 
 
+def _build_url(base_url: str, path: typing.Optional[str]) -> str:
+    """
+    Build a full URL by joining a base URL with a path.
+
+    This function correctly handles base URLs that contain path prefixes (e.g., tenant-based URLs)
+    by using string concatenation instead of urllib.parse.urljoin(), which would incorrectly
+    strip path components when the path starts with '/'.
+
+    Example:
+        >>> _build_url("https://cloud.example.com/org/tenant/api", "/users")
+        'https://cloud.example.com/org/tenant/api/users'
+
+    Args:
+        base_url: The base URL, which may contain path prefixes.
+        path: The path to append. Can be None or empty string.
+
+    Returns:
+        The full URL with base_url and path properly joined.
+    """
+    if not path:
+        return base_url
+    return f"{base_url.rstrip('/')}/{path.lstrip('/')}"
+
+
 def _maybe_filter_none_from_multipart_data(
     data: typing.Optional[typing.Any],
     request_files: typing.Optional[RequestFiles],
@@ -294,7 +317,7 @@ def request(
 
         response = self.httpx_client.request(
             method=method,
-            url=urllib.parse.urljoin(f"{base_url}/", path),
+            url=_build_url(base_url, path),
             headers=jsonable_encoder(
                 remove_none_from_dict(
                     {
@@ -397,7 +420,7 @@ def stream(
 
         with self.httpx_client.stream(
             method=method,
-            url=urllib.parse.urljoin(f"{base_url}/", path),
+            url=_build_url(base_url, path),
             headers=jsonable_encoder(
                 remove_none_from_dict(
                     {
@@ -515,7 +538,7 @@ async def request(
         # Add the input to each of these and do None-safety checks
         response = await self.httpx_client.request(
             method=method,
-            url=urllib.parse.urljoin(f"{base_url}/", path),
+            url=_build_url(base_url, path),
             headers=jsonable_encoder(
                 remove_none_from_dict(
                     {
@@ -620,7 +643,7 @@ async def stream(
 
         async with self.httpx_client.stream(
             method=method,
-            url=urllib.parse.urljoin(f"{base_url}/", path),
+            url=_build_url(base_url, path),
             headers=jsonable_encoder(
                 remove_none_from_dict(
                     {

tests/utils/test_http_client.py

@@ -4,7 +4,13 @@
 
 import pytest
 
-from credal.core.http_client import AsyncHttpClient, HttpClient, get_request_body, remove_none_from_dict
+from credal.core.http_client import (
+    AsyncHttpClient,
+    HttpClient,
+    _build_url,
+    get_request_body,
+    remove_none_from_dict,
+)
 from credal.core.request_options import RequestOptions
 
 
@@ -264,3 +270,31 @@ async def test_async_http_client_passes_encoded_params_when_present() -> None:
     params = dummy_client.last_request_kwargs["params"]
     # For a simple dict, encode_query should give a single (key, value) tuple
     assert params == [("after", "456")]
+
+
+def test_basic_url_joining() -> None:
+    """Test basic URL joining with a simple base URL and path."""
+    result = _build_url("https://api.example.com", "/users")
+    assert result == "https://api.example.com/users"
+
+
+def test_basic_url_joining_trailing_slash() -> None:
+    """Test basic URL joining with a simple base URL and path."""
+    result = _build_url("https://api.example.com/", "/users")
+    assert result == "https://api.example.com/users"
+
+
+def test_preserves_base_url_path_prefix() -> None:
+    """Test that path prefixes in base URL are preserved.
+
+    This is the critical bug fix - urllib.parse.urljoin() would strip
+    the path prefix when the path starts with '/'.
+    """
+    result = _build_url("https://cloud.example.com/org/tenant/api", "/users")
+    assert result == "https://cloud.example.com/org/tenant/api/users"
+
+
+def test_preserves_base_url_path_prefix_trailing_slash() -> None:
+    """Test that path prefixes in base URL are preserved."""
+    result = _build_url("https://cloud.example.com/org/tenant/api/", "/users")
+    assert result == "https://cloud.example.com/org/tenant/api/users"