How to use verify_dict_filter method in localstack

Best Python code snippet using localstack_python

lambda_utils.py

Source:lambda_utils.py

...255            LOG.warn(256                f"Could not convert filter value {numeric_filter[idx + 1]} to a valid number value for filtering"257            )258    return True259def verify_dict_filter(record_value: any, dict_filter: Dict[str, any]) -> bool:260    # https://docs.aws.amazon.com/lambda/latest/dg/invocation-eventfiltering.html#filtering-syntax261    fits_filter = False262    for key, filter_value in dict_filter.items():263        if key.lower() == "anything-but":264            fits_filter = record_value not in filter_value265        elif key.lower() == "numeric":266            fits_filter = parse_and_apply_numeric_filter(record_value, filter_value)267        elif key.lower() == "exists":268            fits_filter = bool(filter_value)  # exists means that the key exists in the event record269        elif key.lower() == "prefix":270            if not isinstance(record_value, str):271                LOG.warn(f"Record Value {record_value} does not seem to be a valid string.")272            fits_filter = isinstance(record_value, str) and record_value.startswith(273                str(filter_value)274            )275        if fits_filter:276            return True277    return fits_filter278def filter_stream_record(filter_rule: Dict[str, any], record: Dict[str, any]) -> bool:279    if not filter_rule:280        return True281    # https://docs.aws.amazon.com/lambda/latest/dg/invocation-eventfiltering.html#filtering-syntax282    filter_results = []283    for key, value in filter_rule.items():284        # check if rule exists in event285        record_value = (286            record.get(key.lower(), record.get(key)) if isinstance(record, Dict) else None287        )288        append_record = False289        if record_value is not None:290            # check if filter rule value is a list (leaf of rule tree) or a dict (rescursively call function)291            if isinstance(value, list):292                if len(value) > 0:293                    if isinstance(value[0], (str, int)):294                        append_record = record_value in value295                    if isinstance(value[0], dict):296                        append_record = verify_dict_filter(record_value, value[0])297                else:298                    LOG.warn(f"Empty lambda filter: {key}")299            elif isinstance(value, dict):300                append_record = filter_stream_record(value, record_value)301        else:302            # special case 'exists'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:...

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