npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details


  • User packages



Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.


Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2021 – Pkg Stats / Ryan Hefner




[![Build Status](](




Build Status


CDK Construct for AWS CodeDeploy on premises



new CodeDeployOnPremises(this, 'CodeDeployOnPremises', {
  projectName: 'Example Project',
  projectStage: 'production',
  deploymentGroups: [
      name: 'Master',
      instances: [
        name: 'instance01',
        name: 'instance02',
      name: 'Slave',
      instances: [
        name: 'instance01',
        name: 'instance02',

Construct Props

| Name | Type | Description | | :-------------------- | :----------------- | :--------------------------------------------------------------------------------- | | projectName | string | The name of the project. | | projectStage | string | The name of the stage. It's naming dev, staging, and production typically. | | deploymentGroups | DeploymentGroups[] | Specify name for CodeDeploy deployment groups and instances | | slackWebhookURL? | string | slack web hook url | | autoRegisterInstance? | boolean | Using AWSUtility::CloudFormation::CommandRunner to register instance on premises |


  • Determines a part of the instance name. It look like ${projectName}-${projectStage}-${instanceName}.
  • Determines a part of AWS IAM user name for Travis CI. It look like TravisCIUser-${projectName}-${projectStage}
  • Determines a part of CodeDeploy application name. It look like ${projectName}-${projectStage}
  • Determines a part of AWS IAM role name for CommandRunner. It look like ${projectName}-${projectStage}-EC2RunCommandRole


I's the same with projectName property.


The format is in example code. See Usage section.


Notify message of status to slack channel. Trigger deployment event is list below

  • DeploymentStart
  • DeploymentSuccess
  • DeploymentFailure


Default is true.

AWS CodeDeploy on premises need to register for each instance. It can register by AWS CLI or API.

If use AWS CLI, it look like aws deploy register --instance-name ${instanceName} --iam-user-arn ${user.userArn} --tags Key=Name,Value=${instanceName} --region ${Aws.REGION}.

The Construct execute the command on EC2 which using AWSUtility::CloudFormation::CommandRunner CloudFormation resource type.

See more details

IAM User Generation

  • TravisCIUser-${projectName}-${projectStage}

The construct will generate the IAM user for Travis CI. Using the credential of IAM user to set on .travis.yml file.

See more details on Travis CI setting for AWS CodeDeploy

  • CodeDeployUser-OnPrem-${groupName}-${instanceName}

The construct will generate the IAM user for CodeDeploy agent.

See more details on Step 4: Add a configuration file to the on-premises instance