How to use filter_stream_records method in localstack

Best Python code snippet using localstack_python

stream_event_source_listener.py

Source:stream_event_source_listener.py

...170            )171            records = records_response.get("Records")172            event_filter_criterias = get_lambda_event_filters_for_arn(function_arn, stream_arn)173            if len(event_filter_criterias) > 0:174                records = filter_stream_records(records, event_filter_criterias)175            should_get_next_batch = True176            if records:177                payload = self._create_lambda_event_payload(stream_arn, records, shard_id=shard_id)178                is_invocation_successful, status_code = self._invoke_lambda(179                    function_arn, payload, lock_discriminator, parallelization_factor180                )181                if is_invocation_successful:182                    should_get_next_batch = True183                else:184                    num_invocation_failures += 1185                    if num_invocation_failures >= max_num_retries:186                        should_get_next_batch = True187                        if failure_destination:188                            first_rec = records[0]...

lambda_utils.py

Source:lambda_utils.py

...303            if isinstance(value, list) and len(value) > 0:304                append_record = not value[0].get("exists", True)305        filter_results.append(append_record)306    return all(filter_results)307def filter_stream_records(records, filters: List[FilterCriteria]):308    filtered_records = []309    for record in records:310        for filter in filters:311            for rule in filter["Filters"]:312                if filter_stream_record(json.loads(rule["Pattern"]), record):313                    filtered_records.append(record)314                    break315    return filtered_records316def contains_list(filter: Dict) -> bool:317    if isinstance(filter, dict):318        for key, value in filter.items():319            if isinstance(value, list) and len(value) > 0:320                return True321            return contains_list(value)...

sqs_event_source_listener.py

Source:sqs_event_source_listener.py

...173                except json.JSONDecodeError:174                    LOG.warning(175                        f"Unable to convert record '{record['body']}' to json... Record might be dropped."176                    )177            records = filter_stream_records(records, event_filter_criterias)178            # convert them back179            for record in records:180                record["body"] = (181                    json.dumps(record["body"])182                    if not isinstance(record["body"], str)183                    else record["body"]184                )185        # all messages were filtered out186        if not len(records) > 0:187            return True188        event = {"Records": records}189        res = run_lambda(190            func_arn=lambda_arn,191            event=event,...

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