v125

esm.sh v125 has been deployed to the edge(earth), includes some bugfixs and promoted denonext target for Deno >= 1.33.2 that uses node: specifier for the node compatibility layer.

• Fix node-fetch import in cjs modules (close #649)
• Add node:worker_threads polyfill(fake) (close #648)
• Use denonext target for Deno >= 1.33.2 (close #646)
• Fix .json.js path (close #645)
• Fix cache missing content (close #641)
• Upgrade deno/std to 0.177.1

v124

Just applied a fix patch for the broken dts walker.

v123

In v123, we added a server module for Deno runtime that allows you to serve esm.sh locally with command deno run -A https://esm.sh/server, zero config and no code need! 🦕

Or build your deno app with esm.sh server:

// server.js

import { serve } from "https://esm.sh/v123/server";
​
serve((req) => {
  const url = new URL(req.url);
​
  // your routes override esm.sh routes
  if (url.pathname === "/") {
    // using a custom homepage
    return new Response("<h1>Welcome to use esm.sh!</h1>", {
      headers: { "Content-Type": "text/html" },
    });
  }
});

// $ deno run -A -r server.js

Warning: currently the server doesn't work with Deno Deploy, we are working on it.

Changelog:

• Add /server endpoint for Deno to serve esm.sh locally
• Add scope to config (#636 by @johnpangalos)
• Fix .d.ts walker (close #640)
• Fix packages with v prefix in version (close #639)
• Fix findFiles function (close #638)

v122

esm.sh v122 has been deployed to the edge(earth), includes some bugfixs and worker improvement:

• Use stable imports order in cjs modules

  We used map data structure of Golang to mark requires(imports) in a cjs moudle before v122,
  it creates import exprs in random order, that may break the loop imports.

• Support more asset extension names
• esm-worker: Use X-Real-Origin and X-Esm-Worker-Version headers
• Fix worker CORS issue (close #631)
• Fix sub-module resolving (close #633)
• Fix undefined content-type header (close #635)

v121

esm.sh v121 includes some bug fix patches:

• Use browser field for package main if possible

  {
    "name": "pkg",
    "version": "1.0.0",
    "main": "./index.js",
    "browser": {
      "./index.js": "./browser.js"
    }
  }

• Fix redirects for ?css and GET /build
• Fix *.js.js module path (close #627)
• Fix cjs imports (close #629, #626)
• Add pako to the requireModeAllowList

v120

In v120, we open-sourced the Cloudflare worker that reveals how we handle 10M requests pre day at edge(earth). You can use it to build your own fast CDN easily:

import worker from "esm-worker";

export default worker((req, ctx) => {
  // your routes override esm.sh routes
  if (ctx.url.pathname === "/") {
    return new Response("<h1>Welcome to use esm.sh!</h1>", {
      headers: { "content-type": "text/html" },
    });
  }
})

More details please check esm-worker.

We improved the build API allows you to add types for your modules, it's useful for types checking and lsp completion:

import { build } from "https://esm.sh/build"

const { url } = await build({
  dependencies: {
    preact: "^10.13.2",
  },
  code: `
    export { h } from "preact";
  `,
  types: `
    export { h } from "preact"
  `,
})

Changelog:

• build-api: Support types option
• Open-source the cloudflare worker
• Support HEAD method
• Use empty object instead of null for browser exclude (close #613)
• Add zlib-sync to nativeNodePackages (close #621)
• Fix bare path for css/custom build
• Fixing type only packages missing the X-Typescript-Types header
• cjs-lexer: Fix exports resloving
• Redirect invalid *.json url

v119

esm.sh v119 mainly includes some bug fixes and esbuild upgrading:

• Fix missed x-typescript-types header for types only packages
• Fix named import of cjs (close #620)
• Use STABKE_VERSION for dts build of stableBuild
• Upgrade esbuild to 0.17.18

v118

in v118, we added an experimental API that allows you to build a module with custom input(code).

import build, { esm } from "https://esm.sh/build"

const ret = await esm`
/* @jsx h */
import { h } from "[email protected]";
import { renderToString } from "[email protected]";
export default () => renderToString(<h1>Hello world!</h1>);
`

// use `build` function
const ret = await build({
  dependencies: {
    "preact": "^10.13.2",
    "preact-render-to-string": "^6.0.2"
  },
  code: `
    /* @jsx h */
    import { h } from "preact";
    import { renderToString } from "preact-render-to-string";
    export default () => renderToString(<h1>Hello world!</h1>);
  `
})

const { default: render } = await import(ret.url)
render() // "<h1>Hello world!</h1>"

// use bundled module
const { default: render } = await import(ret.bundleUrl)

Changelog:

• feat: add custom build api (#607)
• esm-cjs-lexer: Support __export(require("...")) pattern (close #611)
• Add Auth middleware
• Upgrade stableBuild to v118
• Remove lit from stableBuild
• Fix submodule types (close #606)
• Fix arch for darwin arm64 (#617 by @JLugagne)

v117

esm.sh v117 mainly includes some bug fixes :

• Fix Buffer ployfill for deno (close #574)
• Fix dts transformer with submodule (close #599)
• Fix importing .json as a module (close #601)
• Fix .wasm module importing (close #602)
• Fix path /v100/PKG/TARGET/index.js

v116

In v116, we added new feature to allow you to import modules or load assert from a Github repo: /gh/OWNER/REPO/PATH. For example:

// ensure there is a `package.json` in the root of the repo
import tslib from "https://esm.sh/gh/microsoft/tslib"

load a svg image via https://esm.sh/gh/microsoft/fluentui-emoji/assets/Party popper/Color/party_popper_color.svg

This also fix some packages with dependency like git+http://github.com/microsoft/tslib

For Deno users, we fixed some missed/incorrect dts by respecting the typesVersions field of package.json.

Changelog:

• Support modules/assets from Github repo (close #588)
• Update nativeNodePackages (close #591)
• Fix dep import url of cjs module (close #592)
• Add support of resolving typesVersions (close #593)
• Fix exports glob condition resloving (close #594)
• Remove shebang (close #596)
• Fix missed build version of dts files (close #589)