Replaced tsconfig.build.json with tsdown configuration for simplified builds.

.vscode/settings.json

@@ -1,17 +0,0 @@
-{
-  "typescript.tsdk": "node_modules/typescript/lib",
-  "editor.defaultFormatter": "biomejs.biome",
-  "editor.formatOnSave": true,
-  "editor.formatOnPaste": true,
-  "emmet.showExpandedAbbreviation": "never",
-  "editor.codeActionsOnSave": {
-    "source.fixAll.biome": "explicit",
-    "source.organizeImports.biome": "explicit"
-  },
-  "[typescript]": {
-    "editor.defaultFormatter": "biomejs.biome"
-  },
-  "[javascript]": {
-    "editor.defaultFormatter": "biomejs.biome"
-  }
-}

package.json

@@ -7,6 +7,9 @@
     "type": "git",
     "url": "git+https://github.com/jakejarvis/rdapper.git"
   },
+  "bugs": {
+    "url": "https://github.com/jakejarvis/rdapper/issues"
+  },
   "author": {
     "name": "Jake Jarvis",
     "email": "jake@jarv.is",
@@ -14,6 +17,7 @@
   },
   "type": "module",
   "main": "./dist/index.js",
+  "module": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {
     ".": {
@@ -26,13 +30,12 @@
     "dist"
   ],
   "scripts": {
-    "clean": "rm -rf dist",
+    "build": "tsdown",
-    "build": "npm run clean && tsc -p tsconfig.build.json",
+    "dev": "tsdown --watch",
-    "test": "npm run clean && tsc -p tsconfig.json && vitest run",
+    "typecheck": "tsc --noEmit",
-    "test:watch": "npm run clean && tsc -p tsconfig.json && vitest",
+    "test": "vitest",
-    "test:coverage": "npm run clean && tsc -p tsconfig.json && vitest run --coverage",
+    "test:run": "vitest run",
-    "test:smoke": "SMOKE=1 npm run test",
+    "lint": "biome check",
-    "lint": "biome check --write",
     "prepublishOnly": "npm run build"
   },
   "dependencies": {
@@ -42,7 +45,7 @@
     "@biomejs/biome": "2.2.4",
     "@types/node": "24.5.2",
     "@types/psl": "1.1.3",
-    "@vitest/coverage-v8": "^3.2.4",
+    "tsdown": "0.15.5",
     "typescript": "5.9.2",
     "vitest": "^3.2.4"
   },

src/index.smoke.test.ts

@@ -1,7 +1,7 @@
 /** biome-ignore-all lint/style/noNonNullAssertion: this is fine for tests */
 
 import { expect, test } from "vitest";
-import { isAvailable, isRegistered, lookupDomain } from "./index.js";
+import { isAvailable, isRegistered, lookupDomain } from ".";
 
 // Run only when SMOKE=1 to avoid flakiness and network in CI by default
 const shouldRun = process.env.SMOKE === "1";

src/index.test.ts

@@ -37,12 +37,12 @@ vi.mock("./lib/domain.js", async () => {
   };
 });
 
-import { lookupDomain } from "./index.js";
+import { lookupDomain } from ".";
-import * as domain from "./lib/domain.js";
+import * as domain from "./lib/domain";
-import * as rdapClient from "./rdap/client.js";
+import * as rdapClient from "./rdap/client";
-import type { WhoisQueryResult } from "./whois/client.js";
+import type { WhoisQueryResult } from "./whois/client";
-import * as whoisClient from "./whois/client.js";
+import * as whoisClient from "./whois/client";
-import * as discovery from "./whois/discovery.js";
+import * as discovery from "./whois/discovery";
 
 // 1) Orchestration tests (RDAP path, fallback, whoisOnly)
 describe("lookupDomain orchestration", () => {

src/index.ts

@@ -1,18 +1,18 @@
-import { toISO } from "./lib/dates.js";
+import { toISO } from "./lib/dates";
-import { getDomainParts, isLikelyDomain } from "./lib/domain.js";
+import { getDomainParts, isLikelyDomain } from "./lib/domain";
-import { getRdapBaseUrlsForTld } from "./rdap/bootstrap.js";
+import { getRdapBaseUrlsForTld } from "./rdap/bootstrap";
-import { fetchRdapDomain } from "./rdap/client.js";
+import { fetchRdapDomain } from "./rdap/client";
-import { normalizeRdap } from "./rdap/normalize.js";
+import { normalizeRdap } from "./rdap/normalize";
-import type { DomainRecord, LookupOptions, LookupResult } from "./types.js";
+import type { DomainRecord, LookupOptions, LookupResult } from "./types";
-import { whoisQuery } from "./whois/client.js";
+import { whoisQuery } from "./whois/client";
 import {
   extractWhoisReferral,
-  ianaWhoisServerForTld,
   getIanaWhoisTextForTld,
+  ianaWhoisServerForTld,
   parseIanaRegistrationInfoUrl,
-} from "./whois/discovery.js";
+} from "./whois/discovery";
-import { normalizeWhois } from "./whois/normalize.js";
+import { normalizeWhois } from "./whois/normalize";
-import { WHOIS_TLD_EXCEPTIONS } from "./whois/servers.js";
+import { WHOIS_TLD_EXCEPTIONS } from "./whois/servers";
 
 /**
  * High-level lookup that prefers RDAP and falls back to WHOIS.
@@ -69,9 +69,7 @@ export async function lookupDomain(
       const regUrl = ianaText
         ? parseIanaRegistrationInfoUrl(ianaText)
         : undefined;
-      const hint = regUrl
+      const hint = regUrl ? ` See registration info at ${regUrl}.` : "";
-        ? ` See registration info at ${regUrl}.`
-        : "";
       return {
         ok: false,
         error: `No WHOIS server discovered for TLD '${tld}'. This registry may not publish public WHOIS over port 43.${hint}`,
@@ -150,4 +148,4 @@ export async function isRegistered(
   return res.record.isRegistered === true;
 }
 
-export type * from "./types.js";
+export type * from "./types";

src/lib/dates.test.ts

@@ -1,7 +1,7 @@
 /** biome-ignore-all lint/style/noNonNullAssertion: this is fine for tests */
 
 import { expect, test } from "vitest";
-import { toISO } from "./dates.js";
+import { toISO } from "./dates";
 
 test("toISO parses ISO and common whois formats", () => {
   const iso = toISO("2023-01-02T03:04:05Z");

src/lib/domain.test.ts

@@ -1,5 +1,5 @@
 import { expect, test } from "vitest";
-import { extractTld, isLikelyDomain } from "./domain.js";
+import { extractTld, isLikelyDomain } from "./domain";
 
 test("extractTld basic", () => {
   expect(extractTld("example.com")).toBe("com");

src/rdap/bootstrap.ts

@@ -1,6 +1,6 @@
-import { withTimeout } from "../lib/async.js";
+import { withTimeout } from "../lib/async";
-import { DEFAULT_TIMEOUT_MS } from "../lib/constants.js";
+import { DEFAULT_TIMEOUT_MS } from "../lib/constants";
-import type { LookupOptions } from "../types.js";
+import type { LookupOptions } from "../types";
 
 // Use global fetch (Node 18+). For large JSON we keep it simple.
 

src/rdap/client.ts

@@ -1,6 +1,6 @@
-import { withTimeout } from "../lib/async.js";
+import { withTimeout } from "../lib/async";
-import { DEFAULT_TIMEOUT_MS } from "../lib/constants.js";
+import { DEFAULT_TIMEOUT_MS } from "../lib/constants";
-import type { LookupOptions } from "../types.js";
+import type { LookupOptions } from "../types";
 
 // Use global fetch (Node 18+). For large JSON we keep it simple.
 

src/rdap/normalize.test.ts

@@ -1,5 +1,5 @@
 import { expect, test } from "vitest";
-import { normalizeRdap } from "./normalize.js";
+import { normalizeRdap } from "./normalize";
 
 test("normalizeRdap maps registrar, contacts, nameservers, events, dnssec", () => {
   const rdap = {

src/rdap/normalize.ts

@@ -1,11 +1,11 @@
-import { toISO } from "../lib/dates.js";
+import { toISO } from "../lib/dates";
-import { asDateLike, asString, asStringArray, uniq } from "../lib/text.js";
+import { asDateLike, asString, asStringArray, uniq } from "../lib/text";
 import type {
   Contact,
   DomainRecord,
   Nameserver,
   RegistrarInfo,
-} from "../types.js";
+} from "../types";
 
 type RdapDoc = Record<string, unknown>;
 
@@ -22,12 +22,6 @@ export function normalizeRdap(
   includeRaw = false,
 ): DomainRecord {
   const doc = (rdap ?? {}) as RdapDoc;
-  // Safe helpers for optional fields
-  const _get = (obj: unknown, path: string[]): unknown =>
-    path.reduce<unknown>(
-      (o, k) => ((o as RdapDoc)?.[k] as unknown) ?? undefined,
-      obj,
-    );
 
   // Prefer ldhName (punycode) and unicodeName if provided
   const ldhName: string | undefined =
@@ -254,7 +248,6 @@ function parseVcard(vcardArray: unknown): ParsedVCard {
   const out: ParsedVCard = {};
   for (const e of entries) {
     const key = e?.[0];
-    const _valueType = e?.[2];
     const value = e?.[3];
     if (!key) continue;
     switch (String(key).toLowerCase()) {

src/whois/client.ts

@@ -1,7 +1,7 @@
 import { createConnection } from "node:net";
-import { withTimeout } from "../lib/async.js";
+import { withTimeout } from "../lib/async";
-import { DEFAULT_TIMEOUT_MS } from "../lib/constants.js";
+import { DEFAULT_TIMEOUT_MS } from "../lib/constants";
-import type { LookupOptions } from "../types.js";
+import type { LookupOptions } from "../types";
 
 export interface WhoisQueryResult {
   serverQueried: string;

src/whois/discovery.ts

@@ -1,6 +1,6 @@
-import type { LookupOptions } from "../types.js";
+import type { LookupOptions } from "../types";
-import { whoisQuery } from "./client.js";
+import { whoisQuery } from "./client";
-import { WHOIS_TLD_EXCEPTIONS } from "./servers.js";
+import { WHOIS_TLD_EXCEPTIONS } from "./servers";
 
 /**
  * Parse the IANA WHOIS response for a TLD and extract the WHOIS server
@@ -32,9 +32,7 @@ export function parseIanaWhoisServer(text: string): string | undefined {
  *   remarks: Registration information: http://example.tld
  *   url: https://registry.example
  */
-export function parseIanaRegistrationInfoUrl(
+export function parseIanaRegistrationInfoUrl(text: string): string | undefined {
-  text: string,
-): string | undefined {
   const lines = String(text).split(/\r?\n/);
   for (const raw of lines) {
     const line = raw.trim();

src/whois/normalize.test.ts

@@ -1,5 +1,5 @@
 import { expect, test } from "vitest";
-import { normalizeWhois } from "./normalize.js";
+import { normalizeWhois } from "./normalize";
 
 test("WHOIS .de (DENIC-like) nserver lines", () => {
   const text = `

src/whois/normalize.ts

@@ -1,12 +1,12 @@
-import { toISO } from "../lib/dates.js";
+import { toISO } from "../lib/dates";
-import { isWhoisAvailable } from "../lib/domain.js";
+import { isWhoisAvailable } from "../lib/domain";
-import { parseKeyValueLines, uniq } from "../lib/text.js";
+import { parseKeyValueLines, uniq } from "../lib/text";
 import type {
   Contact,
   DomainRecord,
   Nameserver,
   RegistrarInfo,
-} from "../types.js";
+} from "../types";
 
 /**
  * Convert raw WHOIS text into our normalized DomainRecord.

tsconfig.build.json

@@ -1,6 +0,0 @@
-{
-  "$schema": "https://json.schemastore.org/tsconfig",
-  "extends": "./tsconfig.json",
-  "include": ["src/**/*"],
-  "exclude": ["node_modules", "dist", "src/**/*.test.ts", "src/**/__tests__/**"]
-}

tsconfig.json

@@ -1,17 +1,19 @@
 {
   "$schema": "https://json.schemastore.org/tsconfig",
   "compilerOptions": {
-    "target": "ES2022",
+    "target": "esnext",
-    "module": "NodeNext",
+    "moduleDetection": "force",
-    "moduleResolution": "NodeNext",
+    "module": "preserve",
+    "moduleResolution": "bundler",
     "resolveJsonModule": true,
-    "esModuleInterop": true,
-    "forceConsistentCasingInFileNames": true,
     "strict": true,
-    "skipLibCheck": true,
+    "noUnusedLocals": true,
-    "outDir": "dist",
+    "declaration": true,
-    "rootDir": "src",
+    "emitDeclarationOnly": true,
-    "declaration": true
+    "esModuleInterop": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true,
+    "skipLibCheck": true
   },
   "include": ["src/**/*"],
   "exclude": ["node_modules", "dist"]

tsdown.config.ts

@@ -0,0 +1,8 @@
+import { defineConfig } from "tsdown";
+
+export default defineConfig({
+  entry: ["src/index.ts"],
+  platform: "node",
+  dts: true,
+  external: ["psl"],
+});

vitest.config.ts

@@ -8,10 +8,5 @@ export default defineConfig({
     sequence: { hooks: "list" },
     globals: false,
     testTimeout: process.env.SMOKE === "1" ? 30000 : 5000,
-    coverage: {
-      provider: "v8",
-      reportsDirectory: "coverage",
-      reporter: ["text", "lcov"],
-    },
   },
 });