async def dispatch(self, request: Request,
call_next: RequestResponseEndpoint) -> Response:
"""Processes the whole request APM capturing.
Args:
request (Request)
call_next (RequestResponseEndpoint): Next request process in Starlette.
Returns:
Response
"""
await self._request_started(request)
try:
response = await call_next(request)
except Exception:
await self.capture_exception(
context={
"request":
await get_data_from_request(request, self.client.config,
constants.ERROR)
})
zuqa.set_transaction_result("HTTP 5xx", override=False)
zuqa.set_context({"status_code": 500}, "response")
raise
else:
await self._request_finished(response)
finally:
self.client.end_transaction()
return response
def call(self, module, method, wrapped, instance, args, kwargs):
if not hasattr(instance.application, "zuqa_client"):
# If tornado was instrumented but not as the main framework
# (i.e. in Flower), we should skip it.
return wrapped(*args, **kwargs)
# Late import to avoid ImportErrors
from tornado.web import Finish, HTTPError
from zuqa.contrib.tornado.utils import get_data_from_request
e = args[0]
if isinstance(e, Finish):
# Not an error; Finish is an exception that ends a request without an error response
return wrapped(*args, **kwargs)
client = instance.application.zuqa_client
request = instance.request
client.capture_exception(
context={
"request":
get_data_from_request(instance, request, client.config,
constants.ERROR)
})
if isinstance(e, HTTPError):
zuqa.set_transaction_result("HTTP {}xx".format(
int(e.status_code / 100)),
override=False)
zuqa.set_context({"status_code": e.status_code}, "response")
else:
zuqa.set_transaction_result("HTTP 5xx", override=False)
zuqa.set_context({"status_code": 500}, "response")
return wrapped(*args, **kwargs)
async def call(self, module, method, wrapped, instance, args, kwargs):
if not hasattr(instance.application, "zuqa_client"):
# If tornado was instrumented but not as the main framework
# (i.e. in Flower), we should skip it.
return await wrapped(*args, **kwargs)
# Late import to avoid ImportErrors
from zuqa.contrib.tornado.utils import get_data_from_request, get_data_from_response
request = instance.request
trace_parent = TraceParent.from_headers(request.headers)
client = instance.application.zuqa_client
client.begin_transaction("request", trace_parent=trace_parent)
zuqa.set_context(
lambda: get_data_from_request(instance, request, client.config,
constants.TRANSACTION), "request")
# TODO: Can we somehow incorporate the routing rule itself here?
zuqa.set_transaction_name("{} {}".format(request.method,
type(instance).__name__),
override=False)
ret = await wrapped(*args, **kwargs)
zuqa.set_context(
lambda: get_data_from_response(instance, client.config, constants.
TRANSACTION), "response")
result = "HTTP {}xx".format(instance.get_status() // 100)
zuqa.set_transaction_result(result, override=False)
client.end_transaction()
return ret
def process_response(self, request, response):
if django_settings.DEBUG and not self.client.config.debug:
return response
try:
if hasattr(response, "status_code"):
transaction_name = None
if self.client.config.django_transaction_name_from_route and hasattr(
request.resolver_match, "route"):
transaction_name = request.resolver_match.route
elif getattr(request, "_zuqa_view_func", False):
transaction_name = get_name_from_func(
request._zuqa_view_func)
if transaction_name:
transaction_name = build_name_with_http_method_prefix(
transaction_name, request)
zuqa.set_transaction_name(transaction_name, override=False)
zuqa.set_context(
lambda: self.client.get_data_from_request(
request, constants.TRANSACTION), "request")
zuqa.set_context(
lambda: self.client.get_data_from_response(
response, constants.TRANSACTION), "response")
zuqa.set_context(lambda: self.client.get_user_info(request),
"user")
zuqa.set_transaction_result("HTTP {}xx".format(
response.status_code // 100),
override=False)
except Exception:
self.client.error_logger.error(
"Exception during timing of request", exc_info=True)
return response
async def handle_request(request, handler):
zuqa_client = app.get(CLIENT_KEY)
if zuqa_client:
request[CLIENT_KEY] = zuqa_client
trace_parent = AioHttpTraceParent.from_headers(request.headers)
zuqa_client.begin_transaction("request", trace_parent=trace_parent)
resource = request.match_info.route.resource
name = request.method
if resource:
# canonical has been added in 3.3, and returns one of path, formatter, prefix
for attr in ("canonical", "_path", "_formatter", "_prefix"):
if hasattr(resource, attr):
name += " " + getattr(resource, attr)
break
else:
name += " unknown route"
else:
name += " unknown route"
zuqa.set_transaction_name(name, override=False)
zuqa.set_context(
lambda: get_data_from_request(request, zuqa_client.config,
constants.TRANSACTION),
"request")
try:
response = await handler(request)
zuqa.set_transaction_result("HTTP {}xx".format(response.status //
100),
override=False)
zuqa.set_context(
lambda: get_data_from_response(response, zuqa_client.config,
constants.TRANSACTION),
"response")
return response
except Exception as exc:
if zuqa_client:
zuqa_client.capture_exception(
context={
"request":
get_data_from_request(request, zuqa_client.config,
constants.ERROR)
})
zuqa.set_transaction_result("HTTP 5xx", override=False)
zuqa.set_context({"status_code": 500}, "response")
# some exceptions are response-like, e.g. have headers and status code. Let's try and capture them
if isinstance(exc, (Response, HTTPException)):
zuqa.set_context(
lambda:
get_data_from_response(exc, zuqa_client.config,
constants.ERROR), # noqa: F821
"response",
)
raise
finally:
zuqa_client.end_transaction()
async def _request_finished(self, response: Response):
"""Captures the end of the request processing to APM.
Args:
response (Response)
"""
await set_context(
lambda: get_data_from_response(response, self.client.config,
constants.TRANSACTION), "response")
result = "HTTP {}xx".format(response.status_code // 100)
zuqa.set_transaction_result(result, override=False)
def request_finished(self, app, response):
if not self.app.debug or self.client.config.debug:
zuqa.set_context(
lambda: get_data_from_response(response, self.client.config,
constants.TRANSACTION),
"response")
if response.status_code:
result = "HTTP {}xx".format(response.status_code // 100)
else:
result = response.status
zuqa.set_transaction_result(result, override=False)
# Instead of calling end_transaction here, we defer the call until the response is closed.
# This ensures that we capture things that happen until the WSGI server closes the response.
response.call_on_close(self.client.end_transaction)
def transaction_name():
zuqa.set_transaction_name("foo")
zuqa.set_transaction_result("okydoky")
return Response("")
def override_transaction_name_view(request):
zuqa.set_transaction_name("foo")
zuqa.set_transaction_result("okydoky")
return HttpResponse()