-
Notifications
You must be signed in to change notification settings - Fork 207
/
client.py
1357 lines (1140 loc) · 54.2 KB
/
client.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
# -*- coding: utf-8 -*-
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from collections import OrderedDict
from distutils import util
import functools
import os
import re
from typing import Callable, Dict, Optional, Sequence, Tuple, Type, Union
import pkg_resources
from google.api_core import client_options as client_options_lib # type: ignore
from google.api_core import exceptions # type: ignore
from google.api_core import gapic_v1 # type: ignore
from google.api_core import retry as retries # type: ignore
from google.auth import credentials # type: ignore
from google.auth.transport import mtls # type: ignore
from google.auth.transport.grpc import SslCredentials # type: ignore
from google.auth.exceptions import MutualTLSChannelError # type: ignore
from google.oauth2 import service_account # type: ignore
from google.iam.v1 import iam_policy_pb2 as iam_policy # type: ignore
from google.iam.v1 import policy_pb2 as policy # type: ignore
from google.pubsub_v1.services.publisher import pagers
from google.pubsub_v1.types import pubsub
import grpc
from .transports.base import PublisherTransport, DEFAULT_CLIENT_INFO
from .transports.grpc import PublisherGrpcTransport
from .transports.grpc_asyncio import PublisherGrpcAsyncIOTransport
class PublisherClientMeta(type):
"""Metaclass for the Publisher client.
This provides class-level methods for building and retrieving
support objects (e.g. transport) without polluting the client instance
objects.
"""
_transport_registry = OrderedDict() # type: Dict[str, Type[PublisherTransport]]
_transport_registry["grpc"] = PublisherGrpcTransport
_transport_registry["grpc_asyncio"] = PublisherGrpcAsyncIOTransport
def get_transport_class(cls, label: str = None,) -> Type[PublisherTransport]:
"""Return an appropriate transport class.
Args:
label: The name of the desired transport. If none is
provided, then the first transport in the registry is used.
Returns:
The transport class to use.
"""
# If a specific transport is requested, return that one.
if label:
return cls._transport_registry[label]
# No transport is requested; return the default (that is, the first one
# in the dictionary).
return next(iter(cls._transport_registry.values()))
class PublisherClient(metaclass=PublisherClientMeta):
"""The service that an application uses to manipulate topics,
and to send messages to a topic.
"""
@staticmethod
def _get_default_mtls_endpoint(api_endpoint):
"""Convert api endpoint to mTLS endpoint.
Convert "*.sandbox.googleapis.com" and "*.googleapis.com" to
"*.mtls.sandbox.googleapis.com" and "*.mtls.googleapis.com" respectively.
Args:
api_endpoint (Optional[str]): the api endpoint to convert.
Returns:
str: converted mTLS api endpoint.
"""
if not api_endpoint:
return api_endpoint
mtls_endpoint_re = re.compile(
r"(?P<name>[^.]+)(?P<mtls>\.mtls)?(?P<sandbox>\.sandbox)?(?P<googledomain>\.googleapis\.com)?"
)
m = mtls_endpoint_re.match(api_endpoint)
name, mtls, sandbox, googledomain = m.groups()
if mtls or not googledomain:
return api_endpoint
if sandbox:
return api_endpoint.replace(
"sandbox.googleapis.com", "mtls.sandbox.googleapis.com"
)
return api_endpoint.replace(".googleapis.com", ".mtls.googleapis.com")
# The scopes needed to make gRPC calls to all of the methods defined in
# this service
_DEFAULT_SCOPES = (
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/pubsub",
)
SERVICE_ADDRESS = "pubsub.googleapis.com:443"
"""The default address of the service."""
DEFAULT_ENDPOINT = "pubsub.googleapis.com"
DEFAULT_MTLS_ENDPOINT = _get_default_mtls_endpoint.__func__( # type: ignore
DEFAULT_ENDPOINT
)
@classmethod
def from_service_account_info(cls, info: dict, *args, **kwargs):
"""Creates an instance of this client using the provided credentials info.
Args:
info (dict): The service account private key info.
args: Additional arguments to pass to the constructor.
kwargs: Additional arguments to pass to the constructor.
Returns:
PublisherClient: The constructed client.
"""
credentials = service_account.Credentials.from_service_account_info(info)
kwargs["credentials"] = credentials
return cls(*args, **kwargs)
@classmethod
def from_service_account_file(cls, filename: str, *args, **kwargs):
"""Creates an instance of this client using the provided credentials
file.
Args:
filename (str): The path to the service account private key json
file.
args: Additional arguments to pass to the constructor.
kwargs: Additional arguments to pass to the constructor.
Returns:
PublisherClient: The constructed client.
"""
credentials = service_account.Credentials.from_service_account_file(filename)
kwargs["credentials"] = credentials
return cls(*args, **kwargs)
from_service_account_json = from_service_account_file
@property
def transport(self) -> PublisherTransport:
"""Return the transport used by the client instance.
Returns:
PublisherTransport: The transport used by the client instance.
"""
return self._transport
@staticmethod
def schema_path(project: str, schema: str,) -> str:
"""Return a fully-qualified schema string."""
return "projects/{project}/schemas/{schema}".format(
project=project, schema=schema,
)
@staticmethod
def parse_schema_path(path: str) -> Dict[str, str]:
"""Parse a schema path into its component segments."""
m = re.match(r"^projects/(?P<project>.+?)/schemas/(?P<schema>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def subscription_path(project: str, subscription: str,) -> str:
"""Return a fully-qualified subscription string."""
return "projects/{project}/subscriptions/{subscription}".format(
project=project, subscription=subscription,
)
@staticmethod
def parse_subscription_path(path: str) -> Dict[str, str]:
"""Parse a subscription path into its component segments."""
m = re.match(
r"^projects/(?P<project>.+?)/subscriptions/(?P<subscription>.+?)$", path
)
return m.groupdict() if m else {}
@staticmethod
def topic_path(project: str, topic: str,) -> str:
"""Return a fully-qualified topic string."""
return "projects/{project}/topics/{topic}".format(project=project, topic=topic,)
@staticmethod
def parse_topic_path(path: str) -> Dict[str, str]:
"""Parse a topic path into its component segments."""
m = re.match(r"^projects/(?P<project>.+?)/topics/(?P<topic>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_billing_account_path(billing_account: str,) -> str:
"""Return a fully-qualified billing_account string."""
return "billingAccounts/{billing_account}".format(
billing_account=billing_account,
)
@staticmethod
def parse_common_billing_account_path(path: str) -> Dict[str, str]:
"""Parse a billing_account path into its component segments."""
m = re.match(r"^billingAccounts/(?P<billing_account>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_folder_path(folder: str,) -> str:
"""Return a fully-qualified folder string."""
return "folders/{folder}".format(folder=folder,)
@staticmethod
def parse_common_folder_path(path: str) -> Dict[str, str]:
"""Parse a folder path into its component segments."""
m = re.match(r"^folders/(?P<folder>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_organization_path(organization: str,) -> str:
"""Return a fully-qualified organization string."""
return "organizations/{organization}".format(organization=organization,)
@staticmethod
def parse_common_organization_path(path: str) -> Dict[str, str]:
"""Parse a organization path into its component segments."""
m = re.match(r"^organizations/(?P<organization>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_project_path(project: str,) -> str:
"""Return a fully-qualified project string."""
return "projects/{project}".format(project=project,)
@staticmethod
def parse_common_project_path(path: str) -> Dict[str, str]:
"""Parse a project path into its component segments."""
m = re.match(r"^projects/(?P<project>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_location_path(project: str, location: str,) -> str:
"""Return a fully-qualified location string."""
return "projects/{project}/locations/{location}".format(
project=project, location=location,
)
@staticmethod
def parse_common_location_path(path: str) -> Dict[str, str]:
"""Parse a location path into its component segments."""
m = re.match(r"^projects/(?P<project>.+?)/locations/(?P<location>.+?)$", path)
return m.groupdict() if m else {}
def __init__(
self,
*,
credentials: Optional[credentials.Credentials] = None,
transport: Union[str, PublisherTransport, None] = None,
client_options: Optional[client_options_lib.ClientOptions] = None,
client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
) -> None:
"""Instantiate the publisher client.
Args:
credentials (Optional[google.auth.credentials.Credentials]): The
authorization credentials to attach to requests. These
credentials identify the application to the service; if none
are specified, the client will attempt to ascertain the
credentials from the environment.
transport (Union[str, PublisherTransport]): The
transport to use. If set to None, a transport is chosen
automatically.
client_options (google.api_core.client_options.ClientOptions): Custom options for the
client. It won't take effect if a ``transport`` instance is provided.
(1) The ``api_endpoint`` property can be used to override the
default endpoint provided by the client. GOOGLE_API_USE_MTLS_ENDPOINT
environment variable can also be used to override the endpoint:
"always" (always use the default mTLS endpoint), "never" (always
use the default regular endpoint) and "auto" (auto switch to the
default mTLS endpoint if client certificate is present, this is
the default value). However, the ``api_endpoint`` property takes
precedence if provided.
(2) If GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
is "true", then the ``client_cert_source`` property can be used
to provide client certificate for mutual TLS transport. If
not provided, the default SSL client certificate will be used if
present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
set, no client certificate will be used.
client_info (google.api_core.gapic_v1.client_info.ClientInfo):
The client info used to send a user-agent string along with
API requests. If ``None``, then default info will be used.
Generally, you only need to set this if you're developing
your own client library.
Raises:
google.auth.exceptions.MutualTLSChannelError: If mutual TLS transport
creation failed for any reason.
"""
if isinstance(client_options, dict):
client_options = client_options_lib.from_dict(client_options)
if client_options is None:
client_options = client_options_lib.ClientOptions()
# Create SSL credentials for mutual TLS if needed.
use_client_cert = bool(
util.strtobool(os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false"))
)
client_cert_source_func = None
is_mtls = False
if use_client_cert:
if client_options.client_cert_source:
is_mtls = True
client_cert_source_func = client_options.client_cert_source
else:
is_mtls = mtls.has_default_client_cert_source()
client_cert_source_func = (
mtls.default_client_cert_source() if is_mtls else None
)
# Figure out which api endpoint to use.
if client_options.api_endpoint is not None:
api_endpoint = client_options.api_endpoint
else:
use_mtls_env = os.getenv("GOOGLE_API_USE_MTLS_ENDPOINT", "auto")
if use_mtls_env == "never":
api_endpoint = self.DEFAULT_ENDPOINT
elif use_mtls_env == "always":
api_endpoint = self.DEFAULT_MTLS_ENDPOINT
elif use_mtls_env == "auto":
api_endpoint = (
self.DEFAULT_MTLS_ENDPOINT if is_mtls else self.DEFAULT_ENDPOINT
)
else:
raise MutualTLSChannelError(
"Unsupported GOOGLE_API_USE_MTLS_ENDPOINT value. Accepted values: never, auto, always"
)
# Save or instantiate the transport.
# Ordinarily, we provide the transport, but allowing a custom transport
# instance provides an extensibility point for unusual situations.
if isinstance(transport, PublisherTransport):
# transport is a PublisherTransport instance.
if credentials or client_options.credentials_file:
raise ValueError(
"When providing a transport instance, "
"provide its credentials directly."
)
if client_options.scopes:
raise ValueError(
"When providing a transport instance, "
"provide its scopes directly."
)
self._transport = transport
else:
Transport = type(self).get_transport_class(transport)
emulator_host = os.environ.get("PUBSUB_EMULATOR_HOST")
if emulator_host:
if issubclass(Transport, type(self)._transport_registry["grpc"]):
channel = grpc.insecure_channel(target=emulator_host)
else:
channel = grpc.aio.insecure_channel(target=emulator_host)
Transport = functools.partial(Transport, channel=channel)
self._transport = Transport(
credentials=credentials,
credentials_file=client_options.credentials_file,
host=api_endpoint,
scopes=client_options.scopes,
client_cert_source_for_mtls=client_cert_source_func,
quota_project_id=client_options.quota_project_id,
client_info=client_info,
)
def create_topic(
self,
request: pubsub.Topic = None,
*,
name: str = None,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> pubsub.Topic:
r"""Creates the given topic with the given name. See the [resource
name rules]
(https://cloud.google.com/pubsub/docs/admin#resource_names).
Args:
request (google.pubsub_v1.types.Topic):
The request object. A topic resource.
name (str):
Required. The name of the topic. It must have the format
``"projects/{project}/topics/{topic}"``. ``{topic}``
must start with a letter, and contain only letters
(``[A-Za-z]``), numbers (``[0-9]``), dashes (``-``),
underscores (``_``), periods (``.``), tildes (``~``),
plus (``+``) or percent signs (``%``). It must be
between 3 and 255 characters in length, and it must not
start with ``"goog"``.
This corresponds to the ``name`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.pubsub_v1.types.Topic:
A topic resource.
"""
# Create or coerce a protobuf request object.
# Sanity check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any([name])
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a pubsub.Topic.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, pubsub.Topic):
request = pubsub.Topic(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if name is not None:
request.name = name
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.create_topic]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
)
# Send the request.
response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
# Done; return the response.
return response
def update_topic(
self,
request: pubsub.UpdateTopicRequest = None,
*,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> pubsub.Topic:
r"""Updates an existing topic. Note that certain
properties of a topic are not modifiable.
Args:
request (google.pubsub_v1.types.UpdateTopicRequest):
The request object. Request for the UpdateTopic method.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.pubsub_v1.types.Topic:
A topic resource.
"""
# Create or coerce a protobuf request object.
# Minor optimization to avoid making a copy if the user passes
# in a pubsub.UpdateTopicRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, pubsub.UpdateTopicRequest):
request = pubsub.UpdateTopicRequest(request)
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.update_topic]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata(
(("topic.name", request.topic.name),)
),
)
# Send the request.
response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
# Done; return the response.
return response
def publish(
self,
request: pubsub.PublishRequest = None,
*,
topic: str = None,
messages: Sequence[pubsub.PubsubMessage] = None,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> pubsub.PublishResponse:
r"""Adds one or more messages to the topic. Returns ``NOT_FOUND`` if
the topic does not exist.
Args:
request (google.pubsub_v1.types.PublishRequest):
The request object. Request for the Publish method.
topic (str):
Required. The messages in the request will be published
on this topic. Format is
``projects/{project}/topics/{topic}``.
This corresponds to the ``topic`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
messages (Sequence[google.pubsub_v1.types.PubsubMessage]):
Required. The messages to publish.
This corresponds to the ``messages`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.pubsub_v1.types.PublishResponse:
Response for the Publish method.
"""
# Create or coerce a protobuf request object.
# Sanity check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any([topic, messages])
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a pubsub.PublishRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, pubsub.PublishRequest):
request = pubsub.PublishRequest(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if topic is not None:
request.topic = topic
if messages is not None:
request.messages = messages
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.publish]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata((("topic", request.topic),)),
)
# Send the request.
response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
# Done; return the response.
return response
def get_topic(
self,
request: pubsub.GetTopicRequest = None,
*,
topic: str = None,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> pubsub.Topic:
r"""Gets the configuration of a topic.
Args:
request (google.pubsub_v1.types.GetTopicRequest):
The request object. Request for the GetTopic method.
topic (str):
Required. The name of the topic to get. Format is
``projects/{project}/topics/{topic}``.
This corresponds to the ``topic`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.pubsub_v1.types.Topic:
A topic resource.
"""
# Create or coerce a protobuf request object.
# Sanity check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any([topic])
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a pubsub.GetTopicRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, pubsub.GetTopicRequest):
request = pubsub.GetTopicRequest(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if topic is not None:
request.topic = topic
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.get_topic]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata((("topic", request.topic),)),
)
# Send the request.
response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
# Done; return the response.
return response
def list_topics(
self,
request: pubsub.ListTopicsRequest = None,
*,
project: str = None,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> pagers.ListTopicsPager:
r"""Lists matching topics.
Args:
request (google.pubsub_v1.types.ListTopicsRequest):
The request object. Request for the `ListTopics` method.
project (str):
Required. The name of the project in which to list
topics. Format is ``projects/{project-id}``.
This corresponds to the ``project`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.pubsub_v1.services.publisher.pagers.ListTopicsPager:
Response for the ListTopics method.
Iterating over this object will yield results and
resolve additional pages automatically.
"""
# Create or coerce a protobuf request object.
# Sanity check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any([project])
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a pubsub.ListTopicsRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, pubsub.ListTopicsRequest):
request = pubsub.ListTopicsRequest(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if project is not None:
request.project = project
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.list_topics]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata((("project", request.project),)),
)
# Send the request.
response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
# This method is paged; wrap the response in a pager, which provides
# an `__iter__` convenience method.
response = pagers.ListTopicsPager(
method=rpc, request=request, response=response, metadata=metadata,
)
# Done; return the response.
return response
def list_topic_subscriptions(
self,
request: pubsub.ListTopicSubscriptionsRequest = None,
*,
topic: str = None,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> pagers.ListTopicSubscriptionsPager:
r"""Lists the names of the attached subscriptions on this
topic.
Args:
request (google.pubsub_v1.types.ListTopicSubscriptionsRequest):
The request object. Request for the
`ListTopicSubscriptions` method.
topic (str):
Required. The name of the topic that subscriptions are
attached to. Format is
``projects/{project}/topics/{topic}``.
This corresponds to the ``topic`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.pubsub_v1.services.publisher.pagers.ListTopicSubscriptionsPager:
Response for the ListTopicSubscriptions method.
Iterating over this object will yield results and
resolve additional pages automatically.
"""
# Create or coerce a protobuf request object.
# Sanity check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any([topic])
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a pubsub.ListTopicSubscriptionsRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, pubsub.ListTopicSubscriptionsRequest):
request = pubsub.ListTopicSubscriptionsRequest(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if topic is not None:
request.topic = topic
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.list_topic_subscriptions]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata((("topic", request.topic),)),
)
# Send the request.
response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
# This method is paged; wrap the response in a pager, which provides
# an `__iter__` convenience method.
response = pagers.ListTopicSubscriptionsPager(
method=rpc, request=request, response=response, metadata=metadata,
)
# Done; return the response.
return response
def list_topic_snapshots(
self,
request: pubsub.ListTopicSnapshotsRequest = None,
*,
topic: str = None,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> pagers.ListTopicSnapshotsPager:
r"""Lists the names of the snapshots on this topic. Snapshots are
used in
`Seek <https://cloud.google.com/pubsub/docs/replay-overview>`__
operations, which allow you to manage message acknowledgments in
bulk. That is, you can set the acknowledgment state of messages
in an existing subscription to the state captured by a snapshot.
Args:
request (google.pubsub_v1.types.ListTopicSnapshotsRequest):
The request object. Request for the `ListTopicSnapshots`
method.
topic (str):
Required. The name of the topic that snapshots are
attached to. Format is
``projects/{project}/topics/{topic}``.
This corresponds to the ``topic`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.pubsub_v1.services.publisher.pagers.ListTopicSnapshotsPager:
Response for the ListTopicSnapshots method.
Iterating over this object will yield results and
resolve additional pages automatically.
"""
# Create or coerce a protobuf request object.
# Sanity check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any([topic])
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a pubsub.ListTopicSnapshotsRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, pubsub.ListTopicSnapshotsRequest):
request = pubsub.ListTopicSnapshotsRequest(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if topic is not None:
request.topic = topic
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.list_topic_snapshots]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata((("topic", request.topic),)),
)
# Send the request.
response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
# This method is paged; wrap the response in a pager, which provides
# an `__iter__` convenience method.
response = pagers.ListTopicSnapshotsPager(
method=rpc, request=request, response=response, metadata=metadata,
)
# Done; return the response.
return response
def delete_topic(
self,
request: pubsub.DeleteTopicRequest = None,
*,
topic: str = None,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> None:
r"""Deletes the topic with the given name. Returns ``NOT_FOUND`` if
the topic does not exist. After a topic is deleted, a new topic
may be created with the same name; this is an entirely new topic
with none of the old configuration or subscriptions. Existing
subscriptions to this topic are not deleted, but their ``topic``
field is set to ``_deleted-topic_``.
Args:
request (google.pubsub_v1.types.DeleteTopicRequest):
The request object. Request for the `DeleteTopic`
method.
topic (str):
Required. Name of the topic to delete. Format is
``projects/{project}/topics/{topic}``.
This corresponds to the ``topic`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
"""
# Create or coerce a protobuf request object.
# Sanity check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any([topic])
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a pubsub.DeleteTopicRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, pubsub.DeleteTopicRequest):
request = pubsub.DeleteTopicRequest(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if topic is not None:
request.topic = topic
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.