@studio/lambda

JavaScript Studio Lambda

A custom lambda execution environment for local testing. Runs each lambda function in it's own process. Defaults are tailored for apex.

Usage

const lambda = require('@studio/lambda');

const lambda_ctrl = lambda.create();
lambda_ctrl.invoke('some-lambda', { some: 'event' }, callback);

API

• lambda_ctrl = lambda.create([options]): Returns a new lambda controller for the given options.
  • base_dir: The base directory to use. Defaults to the current working directory.
  • lambda_path: The path to the lambda function. Replaces ${LAMBDA_NAME} with the lambda name. Defaults to functions/${LAMBDA_NAME}/.
  • env: An object with environment variables to use. Defaults to an empty object.
  • config_file: A JSON file with additional environment and timeout properties. Defaults to functions/${LAMBDA_NAME}/function.${AWS_PROFILE}.json.
  • timeout: The default lambda timeout to use in milliseconds. Defaults to 5 seconds.
  • max_idle: The idle timeout to use in milliseconds. If a function is not invoked for this time, the process gets destroyed. Defaults to 1 hour.
• lambda_ctrl.invoke(lambda_name, event[, context], callback): Invokes the named lambda handle function, passing (event, context, callback). If context is not given, it defaults to an empty object.