Source code for airflow.providers.amazon.aws.operators.lambda_function
## Licensed to the Apache Software Foundation (ASF) under one# or more contributor license agreements. See the NOTICE file# distributed with this work for additional information# regarding copyright ownership. The ASF licenses this file# to you 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__future__importannotationsimportjsonfromtypingimportTYPE_CHECKING,Sequencefromairflow.modelsimportBaseOperatorfromairflow.providers.amazon.aws.hooks.lambda_functionimportLambdaHookifTYPE_CHECKING:fromairflow.utils.contextimportContext
[docs]classAwsLambdaInvokeFunctionOperator(BaseOperator):""" Invokes an AWS Lambda function. You can invoke a function synchronously (and wait for the response), or asynchronously. To invoke a function asynchronously, set `invocation_type` to `Event`. For more details, review the boto3 Lambda invoke docs. :param function_name: The name of the AWS Lambda function, version, or alias. :param payload: The JSON string that you want to provide to your Lambda function as input. :param log_type: Set to Tail to include the execution log in the response. Otherwise, set to "None". :param qualifier: Specify a version or alias to invoke a published version of the function. :param aws_conn_id: The AWS connection ID to use .. seealso:: For more information on how to use this operator, take a look at the guide: :ref:`howto/operator:AwsLambdaInvokeFunctionOperator` """
[docs]defexecute(self,context:Context):""" Invokes the target AWS Lambda function from Airflow. :return: The response payload from the function, or an error object. """hook=LambdaHook(aws_conn_id=self.aws_conn_id)success_status_codes=[200,202,204]self.log.info("Invoking AWS Lambda function: %s with payload: %s",self.function_name,self.payload)response=hook.invoke_lambda(function_name=self.function_name,invocation_type=self.invocation_type,log_type=self.log_type,client_context=self.client_context,payload=self.payload,qualifier=self.qualifier,)self.log.info("Lambda response metadata: %r",response.get("ResponseMetadata"))ifresponse.get("StatusCode")notinsuccess_status_codes:raiseValueError("Lambda function did not execute",json.dumps(response.get("ResponseMetadata")))payload_stream=response.get("Payload")payload=payload_stream.read().decode()if"FunctionError"inresponse:raiseValueError("Lambda function execution resulted in error",{"ResponseMetadata":response.get("ResponseMetadata"),"Payload":payload},)self.log.info("Lambda function invocation succeeded: %r",response.get("ResponseMetadata"))returnpayload