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Val Town is a social website to write and deploy JavaScript.
Build APIs and schedule functions from your browser.
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Usage

Create val
import {githubEmojiUrl} from "https://esm.town/v/karfau/githubEmoji";
console.log(githubEmojiUrl('+1'))
//"https://github.githubassets.com/images/icons/emoji/unicode/1f44d.png?v8"

or in a browser

<img src="https://karfau-githubEmoji.web.val.run/+1"></img>

Looks like in the preview.

curl https://karfau-githubEmoji.web.val.run/+1

(prints "https://github.githubassets.com/images/icons/emoji/unicode/1f44d.png?v8")

If the name you pass (as argument or in the request path) is not in the list, it returns octocat

The list of names can be accessed using githubEmojiNames or by calling https://karfau-githubemoji.web.val.run/names

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import { GITHUB_EMOJIS } from "https://esm.town/v/karfau/GITHUB_EMOJIS";
import { fetch } from "https://esm.town/v/std/fetch?v=4";
export const isEmoji = (key: string) => Object.hasOwn(GITHUB_EMOJIS, key);
export const githubEmojiUrl = (name: string, fallback = "octocat"): string =>
GITHUB_EMOJIS[isEmoji(name) ? name : fallback];
export const githubEmojiNames = (): string[] => Object.keys(GITHUB_EMOJIS);
export default async function githubEmoji(req: Request): Promise<Response> {
const contentType = req.headers.get("Content-Type");
const nameFromURL = new URL(req.url).pathname.split("/").filter(Boolean)[0];
if (nameFromURL === "names") {
return Response.json(githubEmojiNames());
}
const url = githubEmojiUrl(nameFromURL);
if (contentType || contentType === "application/json") {
return Response.json(url);
}
try {
return fetch(url);
} catch (error) {
console.error(req.url, nameFromURL, error);
return new Response(
"<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"64\" height=\"64\" viewBox=\"218.329 117.251 67.385 67.385\" xml:space=\"preserve\"><path style=\"stroke:#e9d535;stroke-width:0;stroke-dasharray:none;stroke-linecap:butt;stroke-dashoffset:0;stroke-li
{ headers: { "Content-Type": "image/svg" }, status: 307, statusText: "Currently not available" },
);
}
}
karfau-githubemoji.web.val.run
December 8, 2023