commit d00fb41f3f04a16fe935c12e5a4132e761050c91
Author: Jannik <jannik@picoscratch.de>
Date:   Wed Feb 25 16:50:38 2026 +0100

    chore: init

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..b512c09
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1 @@
+node_modules
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a14702c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,34 @@
+# dependencies (bun install)
+node_modules
+
+# output
+out
+dist
+*.tgz
+
+# code coverage
+coverage
+*.lcov
+
+# logs
+logs
+_.log
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# caches
+.eslintcache
+.cache
+*.tsbuildinfo
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..50b148e
--- /dev/null
+++ b/README.md
@@ -0,0 +1,5 @@
+# IONOS IPv6 DynDNS
+
+Env vars:
+- IONOS_TOKEN
+- IPV4
diff --git a/bun.lock b/bun.lock
new file mode 100644
index 0000000..737f061
--- /dev/null
+++ b/bun.lock
@@ -0,0 +1,25 @@
+{
+  "lockfileVersion": 1,
+  "workspaces": {
+    "": {
+      "name": "dynv6",
+      "devDependencies": {
+        "@types/bun": "latest",
+      },
+      "peerDependencies": {
+        "typescript": "^5",
+      },
+    },
+  },
+  "packages": {
+    "@types/bun": ["@types/bun@1.3.9", "http://10.10.1.10:4873/@types/bun/-/bun-1.3.9.tgz", { "dependencies": { "bun-types": "1.3.9" } }, "sha512-KQ571yULOdWJiMH+RIWIOZ7B2RXQGpL1YQrBtLIV3FqDcCu6FsbFUBwhdKUlCKUpS3PJDsHlJ1QKlpxoVR+xtw=="],
+
+    "@types/node": ["@types/node@25.3.0", "http://10.10.1.10:4873/@types/node/-/node-25.3.0.tgz", { "dependencies": { "undici-types": "~7.18.0" } }, "sha512-4K3bqJpXpqfg2XKGK9bpDTc6xO/xoUP/RBWS7AtRMug6zZFaRekiLzjVtAoZMquxoAbzBvy5nxQ7veS5eYzf8A=="],
+
+    "bun-types": ["bun-types@1.3.9", "http://10.10.1.10:4873/bun-types/-/bun-types-1.3.9.tgz", { "dependencies": { "@types/node": "*" } }, "sha512-+UBWWOakIP4Tswh0Bt0QD0alpTY8cb5hvgiYeWCMet9YukHbzuruIEeXC2D7nMJPB12kbh8C7XJykSexEqGKJg=="],
+
+    "typescript": ["typescript@5.9.3", "http://10.10.1.10:4873/typescript/-/typescript-5.9.3.tgz", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw=="],
+
+    "undici-types": ["undici-types@7.18.2", "http://10.10.1.10:4873/undici-types/-/undici-types-7.18.2.tgz", {}, "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w=="],
+  }
+}
diff --git a/index.ts b/index.ts
new file mode 100644
index 0000000..902e106
--- /dev/null
+++ b/index.ts
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+import { createServer } from "node:http";
+import { networkInterfaces } from "node:os";
+
+const IONOS_TOKEN = process.env.IONOS_TOKEN;
+const IPV4 = process.env.IPV4;
+if (!IONOS_TOKEN || !IPV4) {
+	console.error("Missing IONOS_TOKEN or IPV4 environment variable.");
+	process.exit(1);
+}
+const IONOS_ENDPOINT = "https://ipv4.api.hosting.ionos.com/dns/v1/dyndns?q=" + IONOS_TOKEN + "&ipv4=" + IPV4;
+
+function getMyIPv6() {
+	const ifs = networkInterfaces();
+	for (const name in ifs) {
+		for (const iface of ifs[name]!) {
+			if (iface.family === "IPv6" && !iface.internal) {
+				return iface.address;
+			}
+		}
+	}
+	return null;
+}
+
+const server = createServer(async (req, res) => {
+	const ipv6 = getMyIPv6();
+	if (ipv6) {
+		console.log(`My IPv6 address: ${ipv6}`);
+	} else {
+		console.error("No IPv6 address found.");
+		res.writeHead(503);
+		res.end("");
+		return;
+	}
+	const ionos = await fetch(IONOS_ENDPOINT + "&ipv6=" + ipv6);
+	if (!ionos.ok) {
+		console.error("Failed to update IONOS DNS record:", ionos.statusText);
+		res.writeHead(502);
+		res.end("");
+		return;
+	}
+	res.writeHead(200);
+	res.end("");
+});
+
+const PORT = 10205;
+server.listen(PORT, () => {
+	console.log(`Server is running on http://localhost:${PORT}`);
+});
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..f73b022
--- /dev/null
+++ b/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "dynv6",
+  "module": "index.ts",
+  "type": "module",
+  "private": true,
+  "devDependencies": {
+    "@types/bun": "latest"
+  },
+  "peerDependencies": {
+    "typescript": "^5"
+  }
+}
diff --git a/tsconfig.json b/tsconfig.json
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index 0000000..bfa0fea
--- /dev/null
+++ b/tsconfig.json
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+{
+  "compilerOptions": {
+    // Environment setup & latest features
+    "lib": ["ESNext"],
+    "target": "ESNext",
+    "module": "Preserve",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedIndexedAccess": true,
+    "noImplicitOverride": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false
+  }
+}