Source code for airflow.contrib.hooks.aws_lambda_hook

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"""
This module contains AWS Lambda hook
"""
from airflow.contrib.hooks.aws_hook import AwsHook


[docs]class AwsLambdaHook(AwsHook):
    """
    Interact with AWS Lambda

    :param function_name: AWS Lambda Function Name
    :type function_name: str
    :param region_name: AWS Region Name (example: us-west-2)
    :type region_name: str
    :param log_type: Tail Invocation Request
    :type log_type: str
    :param qualifier: AWS Lambda Function Version or Alias Name
    :type qualifier: str
    :param invocation_type: AWS Lambda Invocation Type (RequestResponse, Event etc)
    :type invocation_type: str
    """

    def __init__(self, function_name, region_name=None,
                 log_type='None', qualifier='$LATEST',
                 invocation_type='RequestResponse', *args, **kwargs):
        self.function_name = function_name
        self.region_name = region_name
        self.log_type = log_type
        self.invocation_type = invocation_type
        self.qualifier = qualifier
        self.conn = None
        super(AwsLambdaHook, self).__init__(*args, **kwargs)

[docs]    def get_conn(self):
        self.conn = self.get_client_type('lambda', self.region_name)
        return self.conn

[docs]    def invoke_lambda(self, payload):
        """
        Invoke Lambda Function
        """

        awslambda_conn = self.get_conn()

        response = awslambda_conn.invoke(
            FunctionName=self.function_name,
            InvocationType=self.invocation_type,
            LogType=self.log_type,
            Payload=payload,
            Qualifier=self.qualifier
        )

        return response