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




Node.js command line for deploying Cloudformation templates





npm Build Status codecov dependencies Status devDependencies Status JavaScript Style Guide

Node.js command line tool for deploying Cloudformation templates.

Only supports deployment into StackSets as this seemed to be a general gap in the community, but may be extended in the future to include regular Stacks.


Uploads the referenced Cloudformation in the cfdeploy file to the given bucket and creates/updates the stack set per the given name.

  • For creations, it will create stackset instances per specified targets (AWS account/region)
  • For updates, it will update existing stackset instances first and then remove/create stackset instances per specified targets (AWS account/region)

The stack set itself is created in the account that it is being run under in the region specified in the AWS config or us-east-1 if a region is not specified.


  • NodeJS 10+
  • Linux/UNIX
  • R/W access to /tmp and template locations


npm install -g cfdeployer


cfdeploy <options>

| Option | Description | Default (if omitted) | |-------------------------------------|----------------------------------------------------------------------------------------------------|------------------------| | -f, --file | Path to the cfdeploy file | cfdeploy.yml | | -d, --direct | Skip artifact processing and directly usethe base template body vs uploading to S3 | Artifacts are uploaded | | -e, --environment | Passes environment in an Environment parameterto the stack(set) and appends to stack(set) name | No environment |

| Exit Code | Description | |-----------|------------------------------| | 0 | All deployments successful | | 1 | 1 or more deployments failed |

CFDeploy File Structure and Notes

  • Languages
    • Only YAML is supported.
  • File Naming / Location
    • cfdeploy.yml, placed in the root (like e.g. .travis.yml) for easiest use and recognition
    • Can be named anything and placed wherever, but must specify file option (see above)
  • S3 bucket base just specifies the base. The full bucket name is as follows:
    • No environment provided: --
    • Environment provided: ---
  • Cloudformation Template Restrictions
    • Template must be YAML
    type: stackSet
    name: <name of stackset/deployment>
    templatePath: <path to Cloudformation template>
    adminS3Bucket: <S3 bucket name for the administrator account. The base template is placed here. -[environment] is appended if an environment is provided>
    adminS3Prefix: <S3 prefix (with or without trailing slash) in the adminS3Bucket where the uploaded base template is placed. e.g. thisIs/aPrefix/>
    targetsS3BucketBase: <S3 bucket base used to create the full bucket names where the base template artifacts are uploaded to>
    targetsS3Prefix: <S3 prefix (with or without trailing slash) in the targets S3 Buckets where the template artifacts are placed. e.g. thisIs/aPrefix/ >
      <AWS account number or "default" for current user's AWS account number>:
        <region 1>: true
        <region 2>: true
        ...Additional regions as needed
      ...Additional AWS account numbers with regions as needed
    ...Additional deployments as needed

Breaking change from 1.x to 2.x: s3Bucket and s3Prefix have been removed and replaced with the adminS3Bucket/targetsS3BucketBase and adminS3Prefix/targetsS3Prefix settings

Automatic Artifact Upload

Similar to the Cloudformation CI package command, CFDeployer automatically uploads locally referenced artifacts to the S3 bucket and prefix specified in the CFDeploy file. It supports all of the resource types that the package command supports, except types that are not supported in stack sets. It packages the artifact as appropriate to the resource type (e.g. if zipping is required as for Lambda Function resources). Folders will be automatically zipped.

Nested stacks are supported. The resource name name of the nested stack is used to construct the path.

S3 key limitations of 1024 bytes apply, so be sure to avoid very long resource and/or file names.

Uploaded Artifact S3 Key Structure

Template Files

<prefix>/<nested paths (if any)>/<template file name>/<256 bit file hash>/<template file name>
s3Prefix/template.yml/0ff5ef46180f4430eaa816fb239b4f3fc4c06db8f246e90a7c444ee25016e29d/template.yml - base or non-nested template
s3Prefix/_nestedStack1/_nestedNestedStack1/template.yml/0ff5ef46180f4430eaa816fb239b4f3fc4c06db8f246e90a7c444ee25016e29d/template.yml - nested template

Non-Template Files

<prefix>/<nested paths (if any)>/<resource service>/<resource service type>/<file or directory name>/<256 bit file hash>/<file or zipped directory name>
s3Prefix/lambda/function/index.js/0ff5ef46180f4430eaa816fb239b4f3fc4c06db8f246e90a7c444ee25016e29d/ - file in non-nested template
s3Prefix/lambda/function/codeDirectory/0ff5ef46180f4430eaa816fb239b4f3fc4c06db8f246e90a7c444ee25016e29d/ - directory in non-nested template
s3Prefix/_nestedStack1/_nestedNestedStack1/lambda/function/codeDirectory/0ff5ef46180f4430eaa816fb239b4f3fc4c06db8f246e90a7c444ee25016e29d/ - file in nested template


I welcome pull requests, especially for bugfixes, and issue submissions. Please reach out if a larger feature is being considered so we can discuss prior to a PR.