feat: add bin script

Author: gobengo

package-lock.json

@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "description": "",
   "main": "./lib/index.js",
+  "bin": "./lib/bin.js",
   "type": "module",
   "private": false,
   "publishConfig": {
@@ -87,7 +88,8 @@
       "@typescript-eslint/no-misused-promises": 1,
       "@typescript-eslint/no-unused-vars": 0,
       "node/no-missing-import": 0,
-      "no-case-declarations": 0
+      "no-case-declarations": 0,
+      "node/shebang": 0
     }
   },
   "engines": {

package.json

@@ -0,0 +1,28 @@
+#!/usr/bin/env node
+import { fileURLToPath } from "url";
+import { realpathSync } from "fs";
+import process from "process";
+import yargs, { CommandModule } from "yargs";
+import { hideBin } from "yargs/helpers";
+
+if (realpathSync(process.argv[1]) === fileURLToPath(import.meta.url)) {
+  main().catch((error) => {
+    throw error;
+  });
+}
+
+async function main() {
+  const argv = await yargs(hideBin(process.argv))
+    .command(RequestUcanCommand())
+    .help().argv;
+}
+
+function RequestUcanCommand(): CommandModule {
+  return {
+    command: "request-ucan",
+    describe: "request a UCAN to invoke the name service",
+    handler: async () => {
+      console.log("RequestUcanCommand");
+    },
+  };
+}