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Pull (extract) provider data from the provider instead of pushing from the top (#148)

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Ashwin Bharambe 2024-09-29 20:00:51 -07:00 • committed by GitHub
parent f6a6598d1a
commit 5bf679cab6
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GPG key ID: B5690EEEBB952194
4 changed files with 32 additions and 38 deletions
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39
llama_stack/distribution/request_headers.py
View file

@ -6,21 +6,36 @@
import json
import threading
from typing import Any, Dict, List
from typing import Any, Dict
from .utils.dynamic import instantiate_class_type
_THREAD_LOCAL = threading.local()
def get_request_provider_data() -> Any:
return getattr(_THREAD_LOCAL, "provider_data", None)
class NeedsRequestProviderData:
def get_request_provider_data(self) -> Any:
spec = self.__provider_spec__
assert spec, f"Provider spec not set on {self.__class__}"
provider_id = spec.provider_id
validator_class = spec.provider_data_validator
if not validator_class:
raise ValueError(f"Provider {provider_id} does not have a validator")
val = _THREAD_LOCAL.provider_data_header_value
if not val:
return None
validator = instantiate_class_type(validator_class)
try:
provider_data = validator(**val)
return provider_data
except Exception as e:
print("Error parsing provider data", e)
def set_request_provider_data(headers: Dict[str, str], validator_classes: List[str]):
if not validator_classes:
return
def set_request_provider_data(headers: Dict[str, str]):
keys = [
"X-LlamaStack-ProviderData",
"x-llamastack-providerdata",
@ -39,12 +54,4 @@ def set_request_provider_data(headers: Dict[str, str], validator_classes: List[s
print("Provider data not encoded as a JSON object!", val)
return
for validator_class in validator_classes:
validator = instantiate_class_type(validator_class)
try:
provider_data = validator(**val)
if provider_data:
_THREAD_LOCAL.provider_data = provider_data
return
except Exception as e:
print("Error parsing provider data", e)
_THREAD_LOCAL.provider_data_header_value = val

19
llama_stack/distribution/server/server.py
View file

@ -207,9 +207,7 @@ def create_dynamic_passthrough(
return endpoint
def create_dynamic_typed_route(
func: Any, method: str, provider_data_validators: List[str]
):
def create_dynamic_typed_route(func: Any, method: str):
hints = get_type_hints(func)
response_model = hints.get("return")
@ -224,7 +222,7 @@ def create_dynamic_typed_route(
async def endpoint(request: Request, **kwargs):
await start_trace(func.__name__)
set_request_provider_data(request.headers, provider_data_validators)
set_request_provider_data(request.headers)
async def sse_generator(event_gen):
try:
@ -255,7 +253,7 @@ def create_dynamic_typed_route(
async def endpoint(request: Request, **kwargs):
await start_trace(func.__name__)
set_request_provider_data(request.headers, provider_data_validators)
set_request_provider_data(request.headers)
try:
return (
@ -462,21 +460,10 @@ def main(yaml_config: str, port: int = 5000, disable_ipv6: bool = False):
impl_method = getattr(impl, endpoint.name)
validators = []
if isinstance(provider_spec, AutoRoutedProviderSpec):
inner_specs = specs[provider_spec.routing_table_api].inner_specs
for spec in inner_specs:
if spec.provider_data_validator:
validators.append(spec.provider_data_validator)
elif not isinstance(provider_spec, RoutingTableProviderSpec):
if provider_spec.provider_data_validator:
validators.append(provider_spec.provider_data_validator)
getattr(app, endpoint.method)(endpoint.route, response_model=None)(
create_dynamic_typed_route(
impl_method,
endpoint.method,
validators,
)
)