npm Registry API Client

@yorganci/npm-registry-api is a fully typesafe npm registry API client with optional caching.

Features

• Validates registry responses using zod.
• Supports response caching with unstorage.
• Compatible with both Node.js and browser environments.
• Works seamlessly with third-party npm-compatible registries.

Useful Links

• npm registry API for REST API docs.
• ohash docs for serializing cache keys.
• unstorage drivers for caching layer.

Usage

Install @yorganci/npm-registry-api npm package:

1# yarn
2yarn add @yorganci/npm-registry-api
3
4# npm
5npm install @yorganci/npm-registry-api
6
7# pnpm
8pnpm add @yorganci/npm-registry-api

Basic usage

1import { Client } from "@yorganci/npm-registry-api";
2
3const client = new Client();
4
5await client.searchPackages({ text: "react", size: 1 });

npm Registry API

Function Name	Description
getAbbreviatedPackument	Fetches abbreviated packument (package document) containing only the metadata necessary to install a package.
getBulkDailyPackageDownloads	Retrieves the total number of downloads for each day for some packages in the given time period.
getBulkPackageDownloads	Fetches the total number of downloads for the given packages in the given time period.
getDailyPackageDownloads	Retrieves the total number of downloads for each day for a package in the given time period.
getDailyRegistryDownloads	Gets the total number of downloads for each day for all packages in the registry in the given time period.
getPackageDownloads	Fetches total number of downloads for a package in the given time period.
getPackageManifest	Retrieves the manifest describing a specific version of a package (e.g., foo@1.0.0).
getPackageVersionsDownloads	Gets the total number of downloads for each version of a package in the previous 7 days.
getPackument	Fetches full packument (package document) containing all the metadata available about a package.
getRegistryDownloads	Retrieves total number of downloads for all packages in the registry in the given time period.
getRegistryMetadata	Fetches metadata describing the registry itself.
getRegistrySigningKeys	Retrieves public signing keys used by the registry.
searchPackages	Searches packages corresponding to a given query.

Caching API

@yorganci/npm-registry-api/cache module provides basic factory function to create Cache object to be used by Client. By default createCache, uses ohash under the hood to generate cache keys from URL and HTTP headers and any Driver implementation from unstorage can be used for persistance the default is unstorage/drivers/memory.

Basic usage with default options.

1import { Client } from "@yorganci/npm-registry-api";
2import { createCache } from "@yorganci/npm-registry-api/cache";
3
4// By default `Map<string, unknown>` is used as caching layer
5const cachedClient = new Client({
6  cache: createCache(),
7});

Create a file-system backed cache client.

1import { Client } from "@yorganci/npm-registry-api";
2import { createCache } from "@yorganci/npm-registry-api/cache";
3import fs from "unstorage/drivers/fs";
4
5const cachedClient = new Client({
6  cache: createCache({
7    storage: fs({
8      base: "./data",
9    }),
10  }),
11});

License

MIT