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feat: support Azure v1 endpoint format (/openai/v1) (#23484)

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Azure offers two URL formats: the legacy deployment-based format
(/openai/deployments/{model}/...) and the newer v1 format
(/openai/v1/...) where the model stays in the payload body and no
api-version query parameter is needed.

Previously, the code always ran convert_to_azure_payload which
rewrites the URL to the deployment format, causing 404 errors for
users with v1-style base URLs. Now, when the base URL contains
'/openai/v1', we skip deployment URL construction and route
directly.

Applied consistently across all three Azure routing paths:
generate_chat_completion, /responses proxy, and generic proxy.
This commit is contained in:
Classic298
2026-04-08 22:14:46 +02:00
committed by GitHub
parent e7e006e781
commit 99f3c554c8
1 changed files with 38 additions and 20 deletions
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backend/open_webui/routers/openai.py
+38 -20
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@@ -1131,21 +1131,31 @@ async def generate_chat_completion(
is_responses = api_config.get('api_type') == 'responses'
if api_config.get('azure', False):
api_version = api_config.get('api_version', '2023-03-15-preview')
request_url, payload = convert_to_azure_payload(url, payload, api_version)
# Only set api-key header if not using Azure Entra ID authentication
auth_type = api_config.get('auth_type', 'bearer')
if auth_type not in ('azure_ad', 'microsoft_entra_id'):
headers['api-key'] = key
headers['api-version'] = api_version
# Azure v1 format: base URL already ends with /openai/v1,
# model stays in the payload, no deployment URL rewriting.
is_azure_v1 = bool(re.search(r'/openai/v1(?:/|$)', url))
if is_responses:
payload = convert_to_responses_payload(payload)
request_url = f'{request_url}/responses?api-version={api_version}'
if is_azure_v1:
if is_responses:
payload = convert_to_responses_payload(payload)
request_url = f'{url.rstrip("/")}/responses'
else:
request_url = f'{url.rstrip("/")}/chat/completions'
else:
request_url = f'{request_url}/chat/completions?api-version={api_version}'
api_version = api_config.get('api_version', '2023-03-15-preview')
request_url, payload = convert_to_azure_payload(url, payload, api_version)
headers['api-version'] = api_version
if is_responses:
payload = convert_to_responses_payload(payload)
request_url = f'{request_url}/responses?api-version={api_version}'
else:
request_url = f'{request_url}/chat/completions?api-version={api_version}'
else:
if is_responses:
payload = convert_to_responses_payload(payload)
@@ -1357,16 +1367,19 @@ async def responses(
headers, cookies = await get_headers_and_cookies(request, url, key, api_config, user=user)
if api_config.get('azure', False):
api_version = api_config.get('api_version', '2023-03-15-preview')
auth_type = api_config.get('auth_type', 'bearer')
if auth_type not in ('azure_ad', 'microsoft_entra_id'):
headers['api-key'] = key
headers['api-version'] = api_version
is_azure_v1 = bool(re.search(r'/openai/v1(?:/|$)', url))
model = payload.get('model', '')
request_url = f'{url}/openai/deployments/{model}/responses?api-version={api_version}'
if is_azure_v1:
request_url = f'{url.rstrip("/")}/responses'
else:
api_version = api_config.get('api_version', '2023-03-15-preview')
headers['api-version'] = api_version
model = payload.get('model', '')
request_url = f'{url}/openai/deployments/{model}/responses?api-version={api_version}'
else:
request_url = f'{url}/responses'
@@ -1459,20 +1472,25 @@ async def proxy(path: str, request: Request, user=Depends(get_verified_user)):
headers, cookies = await get_headers_and_cookies(request, url, key, api_config, user=user)
if api_config.get('azure', False):
api_version = api_config.get('api_version', '2023-03-15-preview')
# Only set api-key header if not using Azure Entra ID authentication
auth_type = api_config.get('auth_type', 'bearer')
if auth_type not in ('azure_ad', 'microsoft_entra_id'):
headers['api-key'] = key
headers['api-version'] = api_version
is_azure_v1 = bool(re.search(r'/openai/v1(?:/|$)', url))
payload = json.loads(body)
url, payload = convert_to_azure_payload(url, payload, api_version)
body = json.dumps(payload).encode()
if is_azure_v1:
qs = request.url.query
request_url = f'{url.rstrip("/")}/{path}' + (f'?{qs}' if qs else '')
else:
api_version = api_config.get('api_version', '2023-03-15-preview')
headers['api-version'] = api_version
request_url = f'{url}/{path}?api-version={api_version}'
payload = json.loads(body)
url, payload = convert_to_azure_payload(url, payload, api_version)
body = json.dumps(payload).encode()
request_url = f'{url}/{path}?api-version={api_version}'
else:
request_url = f'{url}/{path}'