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Update Lambda function configuration using an AWS SDK

The following code example shows how to update Lambda function configuration.

Note
The source code for these examples is in the AWS Code Examples GitHub repository. Have feedback on a code example? Create an Issue in the code examples repo.

[ Python ]

SDK for Python (Boto3)
To learn how to set up and run this example, see GitHub.

class LambdaWrapper:
    def __init__(self, lambda_client, iam_resource):
        self.lambda_client = lambda_client
        self.iam_resource = iam_resource

    def update_function_configuration(self, function_name, env_vars):
        """
        Updates the environment variables for a Lambda function.

        :param function_name: The name of the function to update.
        :param env_vars: A dict of environment variables to update.
        :return: Data about the update, including the status.
        """
        try:
            response = self.lambda_client.update_function_configuration(
                FunctionName=function_name, Environment={'Variables': env_vars})
        except ClientError as err:
            logger.error(
                "Couldn't update function configuration %s. Here's why: %s: %s", function_name,
                err.response['Error']['Code'], err.response['Error']['Message'])
            raise
        else:
            return response

For a complete list of AWS SDK developer guides and code examples, see Using Lambda with an AWS SDK. This topic also includes information about getting started and details about previous SDK versions.