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Public Registry API

Table of Contents

Objects

Registry

  • db_name: "registry"
  • doc_count: 376841,
  • doc_del_count: 354,
  • update_seq: 2889325,
  • purge_seq: 0,
  • compact_running: false,
  • disk_size: 2098360443,
  • data_size: 1485346312,
  • instance_start_time: "1471680653634734",
  • disk_format_version: 6,
  • committed_update_seq: 2889325

Package

  • _id: the package name
  • _rev: latest revision id
  • name: the package name
  • description: description from the package.json
  • dist-tags: an object with at least one key, latest, representing dist-tags
  • versions: a List of all Version objects for the Package
  • time: an object containing a created and modified time stamp
  • author: object with name, email, and or url of author as listed in package.json
  • repository: object with type and url of package repository as listed in package.json
  • _attachments: http://docs.couchdb.org/en/2.0.0/intro/api.html#attachments
  • readme: full text of the latest version's README

Version

  • name: package name,
  • version: version number
  • homepage: homepage listed in the package.json
  • repository: object with type and url of package repository as listed in package.json
  • dependencies: object with dependencies and versions as listed in package.json
  • devDependencies: object with devDependencies and versions as listed in package.json
  • scripts: object with scripts as listed in package.json
  • author: object with name, email, and or url of author as listed in package.json
  • license: as listed in package.json
  • readme: full text of README file as pointed to in package.json
  • readmeFilename: name of README file
  • _id: <name>@<version>
  • description: description as listed in package.json
  • dist: and object containing a shasum and tarball url, usually in the form of https://registry.npmjs.org/<name>/-/<name>-<version>.tgz
  • _npmVersion: version of npm the package@version was published with
  • _npmUser: an object containing the name and email of the npm user who published the package@version
  • maintainers: and array of objects containing author objects as listed in package.json
  • directories:???

Filtering

Errors

Endpoints

Meta Endpoints

GET·/

Name Value Kind Required? Notes 
{
  "db_name": "registry",
  "doc_count": 399172,
  "doc_del_count": 354,
  "update_seq": 3351374,
  "purge_seq": 0,
  "compact_running": false,
  "disk_size": 2118398075,
  "data_size": 1600835750,
  "instance_start_time": "1475135224217333",
  "disk_format_version": 6,
  "committed_update_seq": 3351374
}

Package Endpoints

GET·/{package}

Name Value Kind Required? Notes
package String Path ✅ the name of the package

This endpoint responds with the package metadata document, sometimes informally called a "packument" or "doc.json". The format of the response is described in detail in the package metadata documentation.

GET·/{package}/{version}

Name Value Kind Required? Notes
package String Path ✅ the name of the package
version String Path ✅ a version number or latest

GET·/-/v1/search

Name Value Kind Required? Notes
text String Query ❌ full-text search to apply
size integer Query ❌ how many results should be returned (default 20, max 250)
from integer Query ❌ offset to return results from
quality float Query ❌ how much of an effect should quality have on search results
popularity float Query ❌ how much of an effect should popularity have on search results
maintenance float Query ❌ how much of an effect should maintenance have on search results

Note: the values of quality, popularity, and maintenance are normalized into a unit-vector provide values between 0 - 1 for each to modify weightings, e.g., to return results based solely on quality, set quality=1.0, maintenance=0.0, popularity=0.0.

response format:

{
  "objects": [
    {
      "package": {
        "name": "yargs",
        "version": "6.6.0",
        "description": "yargs the modern, pirate-themed, successor to optimist.",
        "keywords": [
          "argument",
          "args",
          "option",
          "parser",
          "parsing",
          "cli",
          "command"
        ],
        "date": "2016-12-30T16:53:16.023Z",
        "links": {
          "npm": "https://www.npmjs.com/package/yargs",
          "homepage": "http://yargs.js.org/",
          "repository": "https://github.com/yargs/yargs",
          "bugs": "https://github.com/yargs/yargs/issues"
        },
        "publisher": {
          "username": "bcoe",
          "email": "ben@npmjs.com"
        },
        "maintainers": [
          {
            "username": "bcoe",
            "email": "ben@npmjs.com"
          },
          {
            "username": "chevex",
            "email": "alex.ford@codetunnel.com"
          },
          {
            "username": "nexdrew",
            "email": "andrew@npmjs.com"
          },
          {
            "username": "nylen",
            "email": "jnylen@gmail.com"
          }
        ]
      },
      "score": {
        "final": 0.9237841281241451,
        "detail": {
          "quality": 0.9270640902288084,
          "popularity": 0.8484861649808381,
          "maintenance": 0.9962706951777409
        }
      },
      "searchScore": 100000.914
    }
  ],
  "total": 1,
  "time": "Wed Jan 25 2017 19:23:35 GMT+0000 (UTC)"
}

special search qualifiers:

Special search qualifiers can be provided in the full-text query:

  • author:bcoe: Show/filter results in which bcoe is the author
  • maintainer:bcoe: Show/filter results in which bcoe is qualifier as a maintainer
  • scope:foo: Show/filter results published under the @foo scope
  • keywords:batman: Show/filter results that have batman in the keywords
    • separating multiple keywords with
      • , acts like a logical OR
      • + acts like a logical AND
      • ,- can be used to exclude keywords
  • not:unstable: Exclude packages whose version is < 1.0.0
  • not:insecure: Exclude packages that are insecure or have vulnerable dependencies (based on the nsp registry)
  • is:unstable: Show/filter packages whose version is < 1.0.0
  • is:insecure: Show/filter packages that are insecure or have vulnerable dependencies (based on the nsp registry)
  • boost-exact:false: Do not boost exact matches, defaults to true