Val Town Code SearchReturn to Val Town

27async function generateConciseWeatherSummary(weatherDay) {
28  try {
29    // Get API key from environment
30    const apiKey = Deno.env.get("ANTHROPIC_API_KEY");
31    if (!apiKey) {
32      console.error("Anthropic API key is not configured.");
33      return null;
34    }
35
36    // Initialize Anthropic client
37    const anthropic = new Anthropic({ apiKey });
38
39    const response = await anthropic.messages.create({

77async function generateFunFacts(previousFacts) {
78  try {
79    // Get API key from environment
80    const apiKey = Deno.env.get("ANTHROPIC_API_KEY");
81    if (!apiKey) {
82      console.error("Anthropic API key is not configured.");
83      return null;
84    }
85
86    // Initialize Anthropic client
87    const anthropic = new Anthropic({ apiKey });
88
89    // Format previous facts for the prompt

20### 2. HTTP Vals
21
22- Create web APIs and endpoints
23- Handle HTTP requests and responses
24- Example structure:
66- Generate code in TypeScript
67- Add appropriate TypeScript types and interfaces for all data structures
68- Prefer official SDKs or libraries than writing API calls directly
69- Ask the user to supply API or library documentation if you are at all unsure about it
70- **Never bake in secrets into the code** - always use environment variables
71- Include comments explaining complex logic (avoid commenting obvious operations)
190- For AI-generated images, use: `https://maxm-imggenurl.web.val.run/the-description-of-your-image`
191- **Storage:** DO NOT use the Deno KV module for storage
192- **Browser APIs:** DO NOT use the `alert()`, `prompt()`, or `confirm()` methods
193- **Weather Data:** Use open-meteo for weather data (doesn't require API keys) unless otherwise specified
194- **View Source:** Add a view source link with `import.meta.url.replace("esm.town", "val.town")` and include `target="_top"` attribute
195- **Error Debugging:** Add `<script src="https://esm.town/v/std/catch"></script>` to HTML to capture client-side errors
196- **Error Handling:** Only use try...catch when there's a clear local resolution; avoid catches that merely log or return 500s - let errors bubble up with full context
197- **Environment Variables:** Use `Deno.env.get('keyname')` and minimize their use - prefer APIs without keys
198- **Imports:** Use `https://esm.sh` for npm and Deno dependencies to ensure compatibility on server and browser
199- **Storage Strategy:** Only use backend storage if explicitly required; prefer simple static client-side sites
230
231### Backend (Hono) Best Practices
232- Hono is the recommended API framework (similar to Express, Flask, or Sinatra)
233- Main entry point should be `backend/index.ts`
234- **Static asset serving:** Use the utility functions to read and serve project files:
251  });
252  ```
253- Create RESTful API routes for CRUD operations
254- Be careful with error handling as Hono tends to swallow errors
255- Always include this snippet at the top-level Hono app to re-throwing errors to see full stack traces:
268- Use React 18.2.0 consistently in all imports and the `@jsxImportSource` pragma
269- Follow the React component pattern from the example project
270- Handle API calls properly with proper error catching
271
272### Database Patterns
299   - For files in the project, use `readFile` helpers
300
3015. **API Design:**
302   - `fetch` handler is the entry point for HTTP vals
303   - Run the Hono app with `export default app.fetch // This is the entry point for HTTP vals`

10import { NotebookView } from "./NotebookView.tsx";
11
12const API_BASE = "/api/memories";
13const MEMORIES_PER_PAGE = 20; // Increased from 7 to 20 memories per page
14
90
91    // Fetch avatar image
92    fetch("/api/images/stevens.jpg")
93      .then((response) => {
94        if (response.ok) return response.blob();
104
105    // Fetch wood background
106    fetch("/api/images/wood.jpg")
107      .then((response) => {
108        if (response.ok) return response.blob();
133    setError(null);
134    try {
135      const response = await fetch(API_BASE);
136      if (!response.ok) {
137        throw new Error(`HTTP error! status: ${response.status}`);
176
177    try {
178      const response = await fetch(API_BASE, {
179        method: "POST",
180        headers: { "Content-Type": "application/json" },
199
200    try {
201      const response = await fetch(`${API_BASE}/${id}`, {
202        method: "DELETE",
203      });
231
232    try {
233      const response = await fetch(`${API_BASE}/${editingMemory.id}`, {
234        method: "PUT",
235        headers: { "Content-Type": "application/json" },
606    <div className="font-pixel text-[#f8f1e0]">
607      <style jsx>{`
608        @import url("https://fonts.googleapis.com/css2?family=Pixelify+Sans&display=swap");
609
610        @tailwind base;

9// Initialize Notion client
10const notion = new Client({
11  auth: Deno.env.get("NOTION_API_KEY"),
12});
13

24   - Ensure the token has read/write access to _Contents_ for the repo
25   - Copy the access token and add that as the `GITHUB_TOKEN` env var in this val
261. Add a new [Val Town API token][] with read/write permissions. Add that token to the val's env vars as `VALTOWN_TOKEN`
271. Add a `VAL_SECRET` env var to the val. Use this secret to sign the webhook POST request to the `/push` endpoint. Use this endpoint to commit vals from Val Town to your GitHub repo.
28
68
69- `GITHUB_TOKEN`: Read/write GitHub personal access token for reading and writing repo contents 
70- `VALTOWN_TOKEN`: ValTown API token (with read/write Vals permissions) for writing updates from GitHub
71- `GITHUB_WEBHOOK_SECRET`: secret for verifying webhooks from GitHub
72- `VAL_SECRET`: secret for verifying requests to the `/push` endpoint
98[github oauth app]: https://github.com/settings/developers
99[access token]: https://github.com/settings/tokens
100[val town api token]: https://www.val.town/settings/api
101[troubleshooting]: #troubleshooting
102

15
16// Public route without authentication
17app.get("/api/public/:id", async (c) => {
18  const key = `__public/${c.req.param("id")}`;
19  const { blob } = await import("https://esm.town/v/std/blob");
133};
134
135app.get("/api/blobs", checkAuth, async (c) => {
136  const prefix = c.req.query("prefix") || "";
137  const limit = parseInt(c.req.query("limit") || "20", 10);
142});
143
144app.get("/api/blob", checkAuth, async (c) => {
145  const key = c.req.query("key");
146  if (!key) return c.text("Missing key parameter", 400);
150});
151
152app.put("/api/blob", checkAuth, async (c) => {
153  const key = c.req.query("key");
154  if (!key) return c.text("Missing key parameter", 400);
159});
160
161app.delete("/api/blob", checkAuth, async (c) => {
162  const key = c.req.query("key");
163  if (!key) return c.text("Missing key parameter", 400);
167});
168
169app.post("/api/blob", checkAuth, async (c) => {
170  const { file, key } = await c.req.parseBody();
171  if (!file || !key) return c.text("Missing file or key", 400);

70  const menuRef = useRef(null);
71  const isPublic = blob.key.startsWith("__public/");
72  const publicUrl = isPublic ? `${window.location.origin}/api/public/${encodeURIComponent(blob.key.slice(9))}` : null;
73
74  useEffect(() => {
234    setLoading(true);
235    try {
236      const response = await fetch(`/api/blobs?prefix=${encodeKey(searchPrefix)}&limit=${limit}`);
237      const data = await response.json();
238      setBlobs(data);
261      setBlobContentLoading(true);
262      try {
263        const response = await fetch(`/api/blob?key=${encodeKey(clickedBlob.key)}`);
264        const content = await response.text();
265        setSelectedBlob({ ...clickedBlob, key: decodeKey(clickedBlob.key) });
275  const handleSave = async () => {
276    try {
277      await fetch(`/api/blob?key=${encodeKey(selectedBlob.key)}`, {
278        method: "PUT",
279        body: editContent,
287  const handleDelete = async (key) => {
288    try {
289      await fetch(`/api/blob?key=${encodeKey(key)}`, { method: "DELETE" });
290      setBlobs(blobs.filter(b => b.key !== key));
291      if (selectedBlob && selectedBlob.key === key) {
304        const key = `${searchPrefix}${file.name}`;
305        formData.append("key", encodeKey(key));
306        await fetch("/api/blob", { method: "POST", body: formData });
307        const newBlob = { key, size: file.size, lastModified: new Date().toISOString() };
308        setBlobs([newBlob, ...blobs]);
326      try {
327        const fullKey = `${searchPrefix}${key}`;
328        await fetch(`/api/blob?key=${encodeKey(fullKey)}`, {
329          method: "PUT",
330          body: "",
341  const handleDownload = async (key) => {
342    try {
343      const response = await fetch(`/api/blob?key=${encodeKey(key)}`);
344      const blob = await response.blob();
345      const url = window.URL.createObjectURL(blob);
360    if (newKey && newKey !== oldKey) {
361      try {
362        const response = await fetch(`/api/blob?key=${encodeKey(oldKey)}`);
363        const content = await response.blob();
364        await fetch(`/api/blob?key=${encodeKey(newKey)}`, {
365          method: "PUT",
366          body: content,
367        });
368        await fetch(`/api/blob?key=${encodeKey(oldKey)}`, { method: "DELETE" });
369        setBlobs(blobs.map(b => b.key === oldKey ? { ...b, key: newKey } : b));
370        if (selectedBlob && selectedBlob.key === oldKey) {
380    const newKey = `__public/${key}`;
381    try {
382      const response = await fetch(`/api/blob?key=${encodeKey(key)}`);
383      const content = await response.blob();
384      await fetch(`/api/blob?key=${encodeKey(newKey)}`, {
385        method: "PUT",
386        body: content,
387      });
388      await fetch(`/api/blob?key=${encodeKey(key)}`, { method: "DELETE" });
389      setBlobs(blobs.map(b => b.key === key ? { ...b, key: newKey } : b));
390      if (selectedBlob && selectedBlob.key === key) {
399    const newKey = key.slice(9); // Remove "__public/" prefix
400    try {
401      const response = await fetch(`/api/blob?key=${encodeKey(key)}`);
402      const content = await response.blob();
403      await fetch(`/api/blob?key=${encodeKey(newKey)}`, {
404        method: "PUT",
405        body: content,
406      });
407      await fetch(`/api/blob?key=${encodeKey(key)}`, { method: "DELETE" });
408      setBlobs(blobs.map(b => b.key === key ? { ...b, key: newKey } : b));
409      if (selectedBlob && selectedBlob.key === key) {
554                        onClick={() =>
555                          copyToClipboard(
556                            `${window.location.origin}/api/public/${encodeURIComponent(selectedBlob.key.slice(9))}`,
557                          )}
558                        className="text-blue-400 hover:text-blue-300 text-sm"
577                        >
578                          <img
579                            src={`/api/blob?key=${encodeKey(selectedBlob.key)}`}
580                            alt="Blob content"
581                            className="max-w-full h-auto"

1export default async (c, next) => {
2  const secret = c.req.header("x-api-key");
3  const method = c.req.method;
4  if (secret !== Deno.env.get("X_API_KEY") && method !== "GET") {
5    return c.text("Unauthorized", 401);
6  }

86
87/**
88 * Format chat history for Anthropic API
89 */
90function formatChatHistoryForAI(history) {
314bot.on("message", async (ctx) => {
315  try {
316    // Get Anthropic API key from environment
317    const apiKey = Deno.env.get("ANTHROPIC_API_KEY");
318    if (!apiKey) {
319      console.error("Anthropic API key is not configured.");
320      ctx.reply(
321        "I apologize, but I'm not properly configured at the moment. Please inform the household administrator.",
325
326    // Initialize Anthropic client
327    const anthropic = new Anthropic({ apiKey });
328
329    // Get message text and user info
491  // Set webhook if it is not set yet
492  if (!isEndpointSet) {
493    await bot.api.setWebhook(req.url, {
494      secret_token: SECRET_TOKEN,
495    });