How to use prepare_event method in localstack
Best Python code snippet using localstack_python
events.py
Source:events.py 
...69 self.type = event["eventType"]70 self.event = event71 self.event_history = event_history72 self.payload = None73 self.prepare_event()74 def prepare_event(self, event):75 raise NotImplementedError()76 def deserialize(self, data):77 return compression.decompress_b64_json(data)78 def serialize(self, data):79 return compression.compress_b64_json(data)80class WorkflowExecutionStarted(DeciderEvent):81 """WorkflowExecutionStarted Event82 {83 u'eventId': 1,84 u'eventTimestamp': datetime.datetime(2016, 3, 26, 22, 20, 7, 17000, tzinfo=tzlocal()),85 u'eventType': u'WorkflowExecutionStarted',86 u'workflowExecutionStartedEventAttributes': {87 u'childPolicy': u'TERMINATE',88 u'executionStartToCloseTimeout': u'60',89 u'input': u'H4sIADdu91YC/6tWyk0tSVSyUqiu1VFQSkmEsJVApFKSkg6IsFIwrK0FALiLFCcoAAAA',90 u'parentInitiatedEventId': 0,91 u'taskList': {u'name': u'flowbee-test-tasks'},92 u'taskPriority': u'0',93 u'taskStartToCloseTimeout': u'10',94 u'workflowType': {95 u'name': u'MyWorkflow.MyActivities',96 u'version': u'0.0.1'}97 }98 }99 """100 def prepare_event(self):101 try:102 attributes = self.event["workflowExecutionStartedEventAttributes"]103 except KeyError as e:104 message = "Unable to lookup '{0}' in {1}".format(e.message, self.event)105 log.error(message)106 raise exceptions.EventException(message=message)107 data = attributes.get("input", None)108 try:109 self.workflow_name = attributes["workflowType"]["name"]110 self.workflow_version = attributes["workflowType"]["version"]111 except KeyError as e:112 message = "Unable to lookup '{0}' in {1}".format(e.message, attributes)113 log.error(message)114 raise exceptions.EventException(message=message)115 if data is not None:116 self.payload = self.deserialize(data)117 else:118 self.payload = None119class ActivityAbstractFailure(DeciderEvent):120 def retry(self):121 log.info(122 "Retrying task '%s@%s'. Retry attempt: %s",123 self.task_name, self.task_version, self.num_retries124 )125 utils.schedule_activity(126 client=self.client,127 tasklist=self.tasklist,128 activity_id=self.activity_id,129 task_token=self.meta.task_token,130 name=self.task_name,131 version=self.task_version,132 payload=self.payload,133 attempt=self.num_retries134 )135 def process_history(self, attributes):136 try:137 scheduled_event_id = attributes["scheduledEventId"]138 except KeyError as e:139 message = "Unable to lookup '{0}' in {1}".format(e.message, self.event)140 log.error(message)141 raise exceptions.EventException(message=message)142 try:143 scheduled_activity_event = [evt for evt in self.event_history if evt["eventId"] == scheduled_event_id][0]144 except IndexError:145 message = "Unable to find event id '{0}' in event_history".format(scheduled_event_id)146 log.error(message)147 raise exceptions.EventException(message=message)148 try:149 activity = scheduled_activity_event["activityTaskScheduledEventAttributes"]150 except KeyError as e:151 message = "Unable to lookup '{0}' in {1}".format(e.message, scheduled_activity_event)152 log.error(message)153 raise exceptions.EventException(message=message)154 try:155 self.activity_id = activity["activityId"].rsplit("-", 1)[0]156 self.tasklist = activity["taskList"]["name"]157 self.task_name = activity["activityType"]["name"]158 self.task_version = activity["activityType"]["version"]159 self.payload = activity["input"]160 except KeyError as e:161 message = "Unable to find key '{0}' in 'activityTaskScheduledEventAttributes'".format(e.message)162 log.error(message)163 raise exceptions.EventException(message=message)164 self.num_retries = sum([165 1 for evt in self.event_history166 if evt["eventType"] == "ActivityTaskScheduled" and167 evt["activityTaskScheduledEventAttributes"]["activityId"].startswith(self.activity_id)168 ])169class ActivityTaskScheduled(DeciderEvent):170 """ActivityTaskScheduled Event171 {172 u'activityTaskScheduledEventAttributes': {173 u'activityId': u'com.flowbee-test.MyWorkflow.MyWorkflow.MyActivities-eb4d44a2c088452a8de053caf50209f7.23gHXuoeTXnzl8Xts+14bNNscjpxZaCJmit8tr2y2Ofzs=.stage1@0.0.1-0',174 u'activityType': {175 u'name': u'stage1',176 u'version': u'0.0.1'},177 u'decisionTaskCompletedEventId': 9,178 u'heartbeatTimeout': u'NONE',179 u'input': u'H4sIADxu91YC/6tWSixKL1ayUohWyilNrlSK1VFQyi6HilUrpeXng+lEIKmUpKQDIqwUDGtrawHg8m1aOQAAAA==',180 u'scheduleToCloseTimeout': u'10',181 u'scheduleToStartTimeout': u'10',182 u'startToCloseTimeout': u'NONE',183 u'taskList': {u'name': u'flowbee-test-tasks'},184 u'taskPriority': u'0'},185 u'eventId': 10,186 u'eventTimestamp': datetime.datetime(2016, 3, 26, 22, 20, 12, 560000, tzinfo=tzlocal()),187 u'eventType': u'ActivityTaskScheduled'188 }189 """190 def prepare_event(self):191 try:192 attributes = self.event["activityTaskScheduledEventAttributes"]193 except KeyError:194 message = "Unable to lookup '{0}' in {1}".format(e.message, self.event)195 log.error(message)196 raise exceptions.EventException(message=message)197 self.tasklist = attributes["taskList"]["name"]198 self.priority = attributes["taskPriority"]199 self.name = attributes["activityType"]["name"]200 self.version = attributes["activityType"]["version"]201 self.activity_id = attributes["activityId"]202 data = attributes.get("input", None)203 if data is not None:204 self.payload = self.deserialize(data)205 else:206 self.payload = None207class ActivityTaskStarted(DeciderEvent):208 """ActivityTaskStarted209 {210 u'activityTaskStartedEventAttributes': {211 u'identity': u'MyWorkflow',212 u'scheduledEventId': 10},213 u'eventId': 11,214 u'eventTimestamp': datetime.datetime(2016, 3, 26, 22, 20, 12, 599000, tzinfo=tzlocal()),215 u'eventType': u'ActivityTaskStarted'216 }217 """218 def prepare_event(self):219 return220class ActivityTaskCompleted(DeciderEvent):221 """ActivityTaskCompleted Event222 {223 u'eventId': 15,224 u'eventType': u'ActivityTaskCompleted',225 u'activityTaskCompletedEventAttributes': {226 u'startedEventId': 14,227 u'scheduledEventId': 13,228 u'result': u'H4sIABZt91YC/1MqLilKLE9KLSrKTC1WAgBhRJKGDgAAAA=='},229 u'eventTimestamp': datetime.datetime(2016, 3, 26, 22, 15, 17, 771000, tzinfo=tzlocal())230 }231 """232 def prepare_event(self):233 data = self.event \234 .get("activityTaskCompletedEventAttributes", {}) \235 .get("result", None)236 if data is not None:237 self.payload = self.deserialize(data)238 else:239 self.payload = None240class ActivityTaskTimedOut(ActivityAbstractFailure):241 """ActivityTaskTimedOut Event242 {243 u'activityTaskTimedOutEventAttributes': {244 u'scheduledEventId': 16,245 u'startedEventId': 17,246 u'timeoutType': u'SCHEDULE_TO_CLOSE'},247 u'eventId': 18,248 u'eventTimestamp': datetime.datetime(2016, 3, 26, 22, 29, 57, 609000, tzinfo=tzlocal()),249 u'eventType': u'ActivityTaskTimedOut'250 }251 """252 def prepare_event(self):253 self.num_retries = 0254 attributes = self.event.get("activityTaskTimedOutEventAttributes")255 self.process_history(attributes)256class ActivityTaskFailed(ActivityAbstractFailure):257 def prepare_event(self):258 self.num_retries = 0259 attributes = self.event.get("activityTaskFailedEventAttributes")260 self.process_history(attributes)261class ScheduleActivityTaskFailed(DeciderEvent):262 def prepare_event(self):263 attributes = self.event["scheduleActivityTaskFailed"]264 activity_id = attributes.get("activityId", "unknown activity id")265 activity_name = attributes.get("activityType", {}).get("name", "unknown name")266 activity_version = attributes.get("activityType", {}).get("version", "unknown version")267 cause = attributes.get("cause", "unknown")268 message = "Failed to schedule activity[%s@%s]: %s - %s" \269 .format(cause, activity_name, activity_version, activity_id)270 log.error(message)271 raise exceptions.EventException(message=message)272class TimerStarted(DeciderEvent):273 """TimerStarted Event274 {275 u'eventId': 5,276 u'eventTimestamp': datetime.datetime(2016, 3, 26, 22, 20, 7, 363000, tzinfo=tzlocal()),277 u'eventType': u'TimerStarted',278 u'timerStartedEventAttributes': {279 u'decisionTaskCompletedEventId': 4,280 u'startToFireTimeout': u'5',281 u'timerId': u'com.flowbee-test.MyWorkflow.MyWorkflow.MyActivities-eb4d44a2c088452a8de053caf50209f7.23gHXuoeTXnzl8Xts+14bNNscjpxZaCJmit8tr2y2Ofzs='}282 }283 """284 def prepare_event(self):285 try:286 attributes = self.event["timerStartedEventAttributes"]287 except KeyError:288 message = "Unable to locate 'timerStartedEventAttributes' on {0}".format(self.event)289 log.error(message)290 raise exceptions.EventException(message=message)291 self.timer_id = attributes["timerId"]292 self.seconds = int(attributes["startToFireTimeout"])293 try:294 data = attributes["control"]295 except KeyError:296 data = None297 if data is None:298 self.payload = None299 else:300 self.payload = self.deserialize(data)301class TimerFired(DeciderEvent):302 """TimerFired Event303 {304 u'eventId': 6,305 u'eventTimestamp': datetime.datetime(2016, 3, 26, 22, 20, 12, 367000, tzinfo=tzlocal()),306 u'eventType': u'TimerFired',307 u'timerFiredEventAttributes': {308 u'startedEventId': 5,309 u'timerId': u'com.flowbee-test.MyWorkflow.MyWorkflow.MyActivities-eb4d44a2c088452a8de053caf50209f7.23gHXuoeTXnzl8Xts+14bNNscjpxZaCJmit8tr2y2Ofzs='}310 }311 """312 def prepare_event(self):313 timer_id = self.event.get("timerFiredEventAttributes", {}).get("timerId")314 self.timer_id = timer_id315 if timer_id is None:316 message = "Unable to locate 'timerId' on 'timerFiredEventAttributes'"317 log.error(message)318 raise exceptions.EventException(message=message)319 try:320 timer_started_event = [321 x for x in self.event_history322 if x["eventType"] == "TimerStarted" and323 x["timerStartedEventAttributes"]["timerId"] == timer_id][0]324 except KeyError as e:325 message = "Failed to find key in event_history '{0}'".format(e.message)326 log.error(message)...
test_pyseco.py
Source:test_pyseco.py
1import abc2import pytest3from collections import namedtuple4from unittest.mock import Mock, call5from random import randint6from src.api.tm_types import Status, ChallengeInfo7from src.errors import NotAnEvent, EventDiscarded8from src.pyseco import Listener, Pyseco9DummyEventData = namedtuple('DummyEventData', ['name', 'data'])10DummyEvent = namedtuple('DummyEvent', ['name'])11CallAssert = namedtuple('CallAssert', ['call', 'params'])12TM_FOREVER = 113DummyConfig = namedtuple('Dummyconfig', ['prefix', 'color', 'tm_login', 'rcp_login', 'rcp_password', 'rcp_ip',14 'rcp_port', 'db_hostname', 'db_user', 'db_password', 'db_name', 'db_charset'])15DUMMY_CONFIG = DummyConfig("T", "$00f", "server_login", "login", "password", "11.22.33.44", 5002, "localhost", "root",16 "passwd", "aseco", "utf8")17DUMMY_PATH_TO_CONFIG = '/path/to/config.yaml'18class Events:19 EVENT1 = DummyEvent('EVENT1')20 EVENT2 = DummyEvent('EVENT2')21 EVENT3 = DummyEvent('EVENT3')22 EVENT4 = DummyEvent('EVENT4')23 EVENT5 = DummyEvent('EVENT5')24class DummyListener(Listener):25 def __init__(self, mocker):26 super().__init__('dummy_listener', Mock())27 self.on_dummy_event1 = mocker.stub(name='on_dummy_event1_stub')28 self.on_dummy_event2 = mocker.stub(name='on_dummy_event2_stub')29 self.on_dummy_event3 = mocker.stub(name='on_dummy_event3_stub')30 self.on_dummy_event4 = mocker.stub(name='on_dummy_event4_stub')31 self.on_dummy_event5 = mocker.stub(name='on_dummy_event5_stub')32# .assert_called_with(Any(str, int))33def Any(*cls):34 class AnyComparator(metaclass=abc.ABCMeta):35 def __eq__(self, other):36 return isinstance(other, cls)37 for c in cls:38 AnyComparator.register(c)39 return AnyComparator()40def random_data():41 return randint(0, 500), randint(0, 500)42def make_event(ev):43 return DummyEventData(name=ev.name, data=random_data())44def make_empty_event(ev):45 return DummyEventData(name=ev.name, data=None)46@pytest.fixture47def pyseco(mocker):48 mocker.patch('src.pyseco.is_bound').return_value = True49 mocker.patch('src.pyseco.Pyseco.start_listening')50 pyseco = Pyseco(DUMMY_PATH_TO_CONFIG)51 return pyseco52@pytest.fixture(autouse=True)53def transport(mocker):54 return mocker.patch('src.pyseco.Transport')55@pytest.fixture(autouse=True)56def config(mocker):57 config_mock = mocker.patch('src.pyseco.Config')58 config_mock.return_value = DUMMY_CONFIG59 return config_mock60@pytest.fixture(autouse=True)61def server(mocker):62 config_mock = mocker.patch('src.pyseco.ServerCtx')63 return config_mock64@pytest.fixture(autouse=True)65def mysql(mocker):66 return mocker.patch('src.pyseco.MySqlWrapper')67@pytest.fixture(autouse=True)68def rpc(mocker):69 rpc = mocker.patch('src.pyseco.XmlRpc')70 rpc.return_value.get_status.return_value = Status({'id': 4, 'name': 'status'})71 rpc.return_value.get_current_challenge_info.return_value = ChallengeInfo()72 return rpc73def test_should_create_object(transport, mysql, config, rpc, server):74 pyseco = Pyseco(DUMMY_PATH_TO_CONFIG)75 transport.assert_called_once_with(DUMMY_CONFIG.rcp_ip, DUMMY_CONFIG.rcp_port, pyseco.events_queue)76 config.assert_called_once_with(DUMMY_PATH_TO_CONFIG)77 mysql.assert_called_once_with(DUMMY_CONFIG)78 rpc.assert_called_once_with(pyseco.transport)79 server.assert_called_once_with(pyseco.rpc, pyseco.config)80def test_should_disconnect_on_exit(transport):81 with Pyseco(DUMMY_PATH_TO_CONFIG):82 transport.return_value.disconnect.assert_not_called()83 transport.return_value.disconnect.assert_called_once()84def test_events_map_should_be_empty_when_no_listeners_registered():85 pyseco = Pyseco(DUMMY_PATH_TO_CONFIG)86 assert len(pyseco.events_matrix) == 087def test_should_sync_data_on_run(transport, pyseco, rpc, server):88 rpc.return_value.get_player_list.return_value = []89 pyseco.run()90 transport.return_value.connect.assert_called_once()91 rpc.return_value.authenticate.assert_called_once_with(DUMMY_CONFIG.rcp_login, DUMMY_CONFIG.rcp_password)92 rpc.return_value.enable_callbacks.assert_called_once_with(True)93 server.return_value.synchronize.assert_called_once()94 rpc.return_value.get_player_list.assert_called_once()95def test_an_exception_other_than_keyboardinterrupt_should_be_passed_further(rpc, pyseco):96 rpc.return_value.authenticate.return_value = True97 rpc.return_value.chat_send_server_message.side_effect = Exception98 with pytest.raises(Exception):99 pyseco.run()100def test_should_disconnect_on_keyboardinterrupt(rpc, pyseco, transport):101 rpc.return_value.authenticate.return_value = True102 rpc.return_value.chat_send_server_message.side_effect = KeyboardInterrupt103 pyseco.run()104 transport.return_value.disconnect.assert_called_once()105def test_should_add_registered_listener_to_events_map(mocker, pyseco):106 listener = DummyListener(mocker)107 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)108 assert listener.on_dummy_event1 in pyseco.events_matrix[Events.EVENT1.name]109def test_only_registered_listener_method_should_be_called_on_event(mocker, pyseco):110 prepare_event = mocker.patch.object(pyseco, '_prepare_event')111 listener = DummyListener(mocker)112 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)113 event = make_event(Events.EVENT1)114 prepare_event.return_value = event115 pyseco.handle_event(None)116 listener.on_dummy_event1.assert_called_with(event.data)117 listener.on_dummy_event2.assert_not_called()118 listener.on_dummy_event3.assert_not_called()119 listener.on_dummy_event4.assert_not_called()120 listener.on_dummy_event5.assert_not_called()121def test_registered_method_should_be_without_params_on_empty_event(mocker, pyseco):122 prepare_event = mocker.patch.object(pyseco, '_prepare_event')123 listener = DummyListener(mocker)124 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)125 event = make_empty_event(Events.EVENT1)126 prepare_event.return_value = event127 pyseco.handle_event(None)128 listener.on_dummy_event1.assert_called_with()129def test_method_registered_multiple_times_should_be_called_once(mocker, pyseco):130 prepare_event = mocker.patch.object(pyseco, '_prepare_event')131 listener = DummyListener(mocker)132 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)133 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)134 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)135 event = make_event(Events.EVENT1)136 prepare_event.return_value = event137 pyseco.handle_event(None)138 listener.on_dummy_event1.assert_called_once()139 listener.on_dummy_event1.assert_called_with(event.data)140def test_listener_should_be_called_multiple_times_on_multiple_events(mocker, pyseco):141 prepare_event = mocker.patch.object(pyseco, '_prepare_event')142 listener = DummyListener(mocker)143 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)144 events_queue = [make_event(Events.EVENT1), make_event(Events.EVENT1), make_event(Events.EVENT1)]145 prepare_event.side_effect = events_queue146 [pyseco.handle_event(None) for _ in events_queue]147 listener.on_dummy_event1.assert_has_calls([call(event.data) for event in events_queue])148def test_multiple_listeners_registered_for_one_event(mocker, pyseco):149 prepare_event = mocker.patch.object(pyseco, '_prepare_event')150 listener1 = DummyListener(mocker)151 listener2 = DummyListener(mocker)152 listener3 = DummyListener(mocker)153 pyseco.register(Events.EVENT1.name, listener1.on_dummy_event1)154 pyseco.register(Events.EVENT1.name, listener2.on_dummy_event1)155 pyseco.register(Events.EVENT1.name, listener3.on_dummy_event1)156 event = make_event(Events.EVENT1)157 prepare_event.return_value = event158 pyseco.handle_event(None)159 listener1.on_dummy_event1.assert_called_with(event.data)160 listener2.on_dummy_event1.assert_called_with(event.data)161 listener3.on_dummy_event1.assert_called_with(event.data)162def test_multiple_methods_registered_for_one_event(mocker, pyseco):163 prepare_event = mocker.patch.object(pyseco, '_prepare_event')164 listener = DummyListener(mocker)165 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)166 pyseco.register(Events.EVENT2.name, listener.on_dummy_event2)167 pyseco.register(Events.EVENT3.name, listener.on_dummy_event3)168 events_queue = [make_event(Events.EVENT1), make_event(Events.EVENT2), make_event(Events.EVENT3)]169 prepare_event.side_effect = events_queue170 [pyseco.handle_event(None) for _ in events_queue]171 listener.on_dummy_event1.assert_called_with(events_queue[0].data)172 listener.on_dummy_event2.assert_called_with(events_queue[1].data)173 listener.on_dummy_event3.assert_called_with(events_queue[2].data)174def test_should_not_call_method_on_exception_raised(mocker, pyseco):175 prepare_event = mocker.patch.object(pyseco, '_prepare_event')176 listener = DummyListener(mocker)177 pyseco.register(Events.EVENT1.name, listener.on_dummy_event1)178 pyseco.register(Events.EVENT2.name, listener.on_dummy_event2)179 pyseco.register(Events.EVENT3.name, listener.on_dummy_event3)180 pyseco.register(Events.EVENT4.name, listener.on_dummy_event4)181 pyseco.register(Events.EVENT5.name, listener.on_dummy_event5)182 events_queue = [make_event(Events.EVENT1),183 NotAnEvent,184 EventDiscarded,185 make_empty_event(Events.EVENT4),186 make_event(Events.EVENT5)]187 prepare_event.side_effect = events_queue188 [pyseco.handle_event(None) for _ in events_queue]189 listener.on_dummy_event1.assert_called_with(events_queue[0].data)190 listener.on_dummy_event2.assert_not_called()191 listener.on_dummy_event3.assert_not_called()192 listener.on_dummy_event4.assert_called_with()...
app.py
Source:app.py
...19 return float(o)20 else:21 return int(o)22 return super(DecimalEncoder, self).default(o)23def prepare_event(event):24 params = {}25 if event.get('queryStringParameters'):26 params = {**event.get('queryStringParameters'), **params}27 if event.get('body'):28 body = json.loads(event.get('body'))29 params = {**body, **params}30 return params31def post_list(event, context):32 """ List Post33 """34 dynamodb = boto3.resource('dynamodb', region_name='eu-west-1')35 table = dynamodb.Table('Blog')36 response = table.scan()37 return {38 "statusCode": 200,39 'headers': {40 "Access-Control-Allow-Origin": "*",41 "Access-Control-Allow-Headers": "Content-Type",42 "Access-Control-Allow-Methods": "OPTIONS,POST,GET"43 },44 "body": json.dumps(response, indent=4, cls=DecimalEncoder),45 }46def post_create(event, context):47 event = prepare_event(event)48 user_name = event['username']49 post_content = event['content']50 image = "null"51 if event.get('image'):52 image = event['image']53 now_timestamp = utcnow()54 dynamodb = boto3.resource('dynamodb', region_name='eu-west-1')55 table = dynamodb.Table('Blog')56 table.put_item(57 Item={58 "id": f"{now_timestamp}-{user_name}",59 "content": post_content,60 "username": user_name,61 "comments": [],62 "image": image,63 "timestamp": now_timestamp64 }65 )66 response = table.get_item(67 Key={68 'id': f"{now_timestamp}-{user_name}"69 }70 )71 item = response['Item']72 return {73 "statusCode": 200,74 'headers': {75 "Access-Control-Allow-Origin": "*",76 "Access-Control-Allow-Headers": "Content-Type",77 "Access-Control-Allow-Methods": "OPTIONS,POST,GET"78 },79 "body": json.dumps(item, indent=4, cls=DecimalEncoder),80 }81def post_delete(event, context):82 event = prepare_event(event)83 post_id = event['id']84 dynamodb = boto3.resource('dynamodb', region_name='eu-west-1')85 table = dynamodb.Table('Blog')86 table.delete_item(87 Key={88 'id': post_id89 }90 )91 return {92 "statusCode": 200,93 'headers': {94 "Access-Control-Allow-Origin": "*",95 "Access-Control-Allow-Headers": "Content-Type",96 "Access-Control-Allow-Methods": "OPTIONS,POST,GET"97 },98 "body": json.dumps({'id': post_id }, indent=4, cls=DecimalEncoder),99 }100def comment_create(event, context):101 event = prepare_event(event)102 post_id = event['postid']103 user_name = event['username']104 comment = event['comment']105 now_timestamp = utcnow()106 comment_item = dict()107 comment_item["comment"] = comment108 comment_item["liked"] = "false"109 comment_item["timestamp"] = now_timestamp110 comment_item["username"] = user_name111 dynamodb = boto3.resource('dynamodb', region_name='eu-west-1')112 table = dynamodb.Table('Blog')113 response = table.get_item(114 Key={115 'id': post_id116 }117 )118 item = response['Item']119 item['comments'].append(comment_item)120 table.update_item(121 Key={122 'id': post_id123 },124 UpdateExpression='SET comments = :val1',125 ExpressionAttributeValues={126 ':val1': item['comments']127 }128 )129 return {130 "statusCode": 200,131 'headers': {132 "Access-Control-Allow-Origin": "*",133 "Access-Control-Allow-Headers": "Content-Type",134 "Access-Control-Allow-Methods": "OPTIONS,POST,GET"135 },136 "body": json.dumps(item, indent=4, cls=DecimalEncoder),137 }138def comment_delete(event, context):139 event = prepare_event(event)140 post_id = event['id']141 user_name = event['username']142 timestamp = event['timestamp']143 dynamodb = boto3.resource('dynamodb', region_name='eu-west-1')144 table = dynamodb.Table('Blog')145 response = table.get_item(146 Key={147 'id': post_id148 }149 )150 item = response['Item']151 an_iterator = filter(lambda comment: comment['timestamp'] != Decimal(timestamp) or comment['username']!=user_name, item['comments'])152 item['comments'] = list(an_iterator)153 table.update_item(...
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