Lambda-local

Lambda-local lets you test Amazon Lambda functions on your local machine with sample event data. The context of the Lambda function is already loaded so you do not have to worry about it. You can pass any event JSON object as you please.

Install

npm install -g lambda-local

Usage

# Usage
lambda-local -l index.js -h handler -e event-samples/s3-put.js

About

Command

• -l, --lambdapath [lambda file name] Specify Lambda function file name.
• -e, --eventpath [event data file name] Specify event data file name.
• -h, --handler [lambda-function handler name (optional)] Lambda function handler name. Default is "handler".
• -t, --timeout [timeout seconds (optional)] Seconds until lambda function timeout. Default is 3 seconds.
• -c, --callbackforce (optional) Force the function to stop after having called context.done/succeed/fail.
• -p, --profile [aws file path (optional)] Read the AWS profile to get the credentials.

Event data

Event sample data are placed in event-samples folder - feel free to use the files in here, or create your own event data. Event data are just JSON objects exported:

// Sample event data
module.exports = {
	foo: "bar"
};

Context

The context object has been directly extracted from the source visible when running an actual Lambda function on AWS. They may change the internals of this object, and Lambda-local does not guarantee that this will always be up-to-date with the actual context object.

AWS-SDK

Since the Amazon Lambda can load the AWS-SDK npm without installation, Lambda-local has also packaged AWS-SDK in its dependencies. If you want to use this, please use the "-p" option with the aws credentials file. More infos here: http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html#cli-config-files

License

This library is released under the MIT license.