Unverified Commit 93aa47b6 authored by Hong Minhee's avatar Hong Minhee
Browse files

actor-lookup-cli

parent 4175745c

deno.json

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@@ -13,6 +13,14 @@ 
  },

  "imports": {

    "@cfworker/json-schema": "npm:@cfworker/json-schema@^1.12.8",

    "@fedify/fedify": "./mod.ts",

    "@fedify/fedify/federation": "./federation/mod.ts",

    "@fedify/fedify/httpsig": "./httpsig/mod.ts",

    "@fedify/fedify/nodeinfo": "./nodeinfo/mod.ts",

    "@fedify/fedify/runtime": "./runtime/mod.ts",

    "@fedify/fedify/vocab": "./vocab/mod.ts",

    "@fedify/fedify/webfinger": "./webfinger/mod.ts",

    "@fedify/fedify/x/fresh": "./x/fresh.ts",

    "@js-temporal/polyfill": "npm:@js-temporal/polyfill@^0.4.4",

    "@phensley/language-tag": "npm:@phensley/language-tag@^1.8.0",

    "@std/assert": "jsr:@std/assert@^0.219.1",

examples/README.md

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@@ -5,6 +5,7 @@ This directory contains example applications built with the Fedify framework. 
Currently, there is only one example application, but more examples will be 

added in the future.[^1]



  -  [Actor lookup CLI](./actor-lookup-cli/)

  -  [Federated single-user blog](./blog/)



[^1]: Contributions are welcome!  If you have built an application with the

examples/actor-lookup-cli/README.md

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actor-lookup-cli

================



This example is a simple CLI program that looks up an actor by their fediverse

handle (e.g. *@user@host*) and prints out their name, bio, stats, etc.  It uses

Fedify as a client library of ActivityPub, not as a server framework here.





Usage

-----



~~~~ sh

deno run -A ./main.ts @hongminhee@todon.eu

~~~~

examples/actor-lookup-cli/main.ts

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import { getActorHandle, isActor, lookupObject } from "@fedify/fedify/vocab";

import { Temporal } from "@js-temporal/polyfill";

import { convert } from "npm:html-to-text@^9.0.5";



export interface Actor {

  handle: string;

  url: URL | null;

  name: string;

  bio: string;

  following: number | null;

  followers: number | null;

  posts: number | null;

  joined: Temporal.Instant | null;

}



async function lookupActor(handle: string): Promise<Actor> {

  const actor = await lookupObject(handle);

  if (!isActor(actor)) throw new TypeError("Not an actor!");

  const following = await actor.getFollowing();

  const followers = await actor.getFollowers();

  const posts = await actor.getOutbox();

  return {

    handle: await getActorHandle(actor),

    url: actor.url,

    name: actor.name ?? "",

    bio: convert(actor.summary ?? "", {

      selectors: [{ selector: "a", options: { ignoreHref: true } }],

    }),

    following: following?.totalItems,

    followers: followers?.totalItems,

    posts: posts?.totalItems,

    joined: actor.published,

  };

}



function displayActor(actor: Actor): void {

  console.log(actor.name);

  console.log(actor.handle);

  if (actor.url) console.log(actor.url.href);

  console.log();

  console.log(actor.bio);

  console.log();

  if (actor.joined) console.log(`Joined: ${actor.joined.toLocaleString()}`);

  if (actor.following) console.log(`Following: ${actor.following}`);

  if (actor.followers) console.log(`Followers: ${actor.followers}`);

  if (actor.posts) console.log(`Posts: ${actor.posts}`);

}



async function main() {

  if (Deno.args.length < 1) {

    console.error("Usage: deno run -A main.ts HANDLE");

    Deno.exit(1);

  }

  const handle = Deno.args[0];

  if (!handle.match(/^@?[^@]+@[^@]+$/)) {

    console.error("Invalid handle:", handle);

    Deno.exit(1);

  }

  const actor = await lookupActor(handle);

  displayActor(actor);

}



if (import.meta.main) await main();

examples/blog/import_map.g.json

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{

  "imports": {

    "@cfworker/json-schema": "npm:@cfworker/json-schema@^1.12.8",

    "@fedify/fedify": "../../mod.ts",

    "@fedify/fedify/federation": "../../federation/mod.ts",

    "@fedify/fedify/httpsig": "../../httpsig/mod.ts",

    "@fedify/fedify/nodeinfo": "./nodeinfo/mod.ts",

    "@fedify/fedify/runtime": "../../runtime/mod.ts",

    "@fedify/fedify/vocab": "../../vocab/mod.ts",

    "@fedify/fedify/webfinger": "../../webfinger/mod.ts",

    "@fedify/fedify/x/fresh": "../../x/fresh.ts",

    "@js-temporal/polyfill": "npm:@js-temporal/polyfill@^0.4.4",

    "@phensley/language-tag": "npm:@phensley/language-tag@^1.8.0",

    "@std/assert": "jsr:@std/assert@^0.219.1",
@@ -26,13 +34,6 @@ 
    "@preact/signals": "https://esm.sh/*@preact/signals@1.2.1",

    "@preact/signals-core": "https://esm.sh/*@preact/signals-core@1.5.0",

    "@std/dotenv/load": "jsr:@std/dotenv@^0.219.1/load",

    "@fedify/fedify": "../../mod.ts",

    "@fedify/fedify/federation": "../../federation/mod.ts",

    "@fedify/fedify/httpsig": "../../httpsig/mod.ts",

    "@fedify/fedify/runtime": "../../runtime/mod.ts",

    "@fedify/fedify/vocab": "../../vocab/mod.ts",

    "@fedify/fedify/webfinger": "../../webfinger/mod.ts",

    "@fedify/fedify/x/fresh": "../../x/fresh.ts",

    "markdown-it": "npm:markdown-it@^14.0.0",

    "preact": "https://esm.sh/preact@10.19.2",

    "preact/": "https://esm.sh/preact@10.19.2/",