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How to use forward_to_ddb_stream method in localstack

Best Python code snippet using localstack_python

34076_dynamodb_listener.py

...112            return113        if 'TableName' in data:114            record['eventSourceARN'] = aws_stack.dynamodb_table_arn(data['TableName'])115        forward_to_lambda(records)116        forward_to_ddb_stream(records)117# instantiate listener118UPDATE_DYNAMODB = ProxyListenerDynamoDB()119def calculate_crc32(response):120    return crc32(to_bytes(response.content)) & 0xffffffff121def create_dynamodb_stream(data):122    stream = data['StreamSpecification']123    enabled = stream.get('StreamEnabled')124    if enabled not in [False, 'False']:125        table_name = data['TableName']126        view_type = stream['StreamViewType']127        dynamodbstreams_api.add_dynamodb_stream(table_name=table_name,128            view_type=view_type, enabled=enabled)129def forward_to_lambda(records):130    for record in records:131        sources = lambda_api.get_event_sources(source_arn=record['eventSourceARN'])132        event = {133            'Records': [record]134        }135        for src in sources:136            func_to_call = lambda_api.arn_to_lambda[src['FunctionArn']].function()137            lambda_api.run_lambda(func_to_call, event=event, context={}, func_arn=src['FunctionArn'])138def forward_to_ddb_stream(records):139    dynamodbstreams_api.forward_events(records)140def dynamodb_extract_keys(item, table_name):141    result = {}142    if table_name not in TABLE_DEFINITIONS:143        LOGGER.warning('Unknown table: %s not found in %s' % (table_name, TABLE_DEFINITIONS))144        return None145    for key in TABLE_DEFINITIONS[table_name]['KeySchema']:146        attr_name = key['AttributeName']147        if attr_name not in item:148            return error_response(error_type='ValidationException',149                message='One of the required keys was not given a value')150        result[attr_name] = item[attr_name]151    return result152def error_response(message=None, error_type=None, code=400):...

dynamodb_listener.py

Source: dynamodb_listener.py

...85        return86    if 'TableName' in data:87        record['eventSourceARN'] = aws_stack.dynamodb_table_arn(data['TableName'])88    forward_to_lambda(records)89    forward_to_ddb_stream(records)90def forward_to_lambda(records):91    for record in records:92        sources = lambda_api.get_event_sources(source_arn=record['eventSourceARN'])93        event = {94            'Records': [record]95        }96        for src in sources:97            func_to_call = lambda_api.lambda_arn_to_function[src['FunctionArn']]98            lambda_api.run_lambda(func_to_call, event=event, context={}, func_arn=src['FunctionArn'])99def forward_to_ddb_stream(records):100    dynamodbstreams_api.forward_events(records)101def dynamodb_extract_keys(item, table_name):102    result = {}103    if table_name not in TABLE_DEFINITIONS:104        LOGGER.warning("Unknown table: %s not found in %s" % (table_name, TABLE_DEFINITIONS))105        return None106    for key in TABLE_DEFINITIONS[table_name]['KeySchema']:107        attr_name = key['AttributeName']108        result[attr_name] = item[attr_name]109    return result110def dynamodb_error_response(data):111    error_response = Response()112    error_response.status_code = 400113    content = {...

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