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23
24  // Used to get the list of post id's for the discussion.
25  const discussionRes = await fetch(`${server}/api/discussions/${discussionId}`);
26  const discussionResJson = await discussionRes.json();
27
35
36  await Promise.all(chunks.map(async (c: string[]) => {
37    const postRes = await fetch(`${server}/api/posts?filter[id]=${c.join(",")}`);
38    const postJson = await postRes.json();
39

1// export default async function (req: Request): Promise<Response> {
2
3//   if (req.url)
4
5//   return Response.json({ tasks: [] });

92
93/**
94 * Format chat history for Anthropic API
95 */
96function formatChatHistoryForAI(history) {
321bot.on("message", async (ctx) => {
322  try {
323    // Get Anthropic API key from environment
324    const apiKey = Deno.env.get("ANTHROPIC_API_KEY");
325    if (!apiKey) {
326      console.error("Anthropic API key is not configured.");
327      ctx.reply(
328        "I apologize, but I'm not properly configured at the moment. Please inform the household administrator."
332
333    // Initialize Anthropic client
334    const anthropic = new Anthropic({ apiKey });
335
336    // Get message text and user info
502  // Set webhook if it is not set yet
503  if (!isEndpointSet) {
504    await bot.api.setWebhook(req.url, {
505      secret_token: SECRET_TOKEN,
506    });

18});
19
20// --- API Routes for Memories ---
21
22// GET /api/memories - Retrieve all memories
23app.get("/api/memories", async (c) => {
24  const memories = await getAllMemories();
25  return c.json(memories);
26});
27
28// POST /api/memories - Create a new memory
29app.post("/api/memories", async (c) => {
30  const body = await c.req.json<Omit<Memory, "id">>();
31  if (!body.text) {
36});
37
38// PUT /api/memories/:id - Update an existing memory
39app.put("/api/memories/:id", async (c) => {
40  const id = c.req.param("id");
41  const body = await c.req.json<Partial<Omit<Memory, "id">>>();
58});
59
60// DELETE /api/memories/:id - Delete a memory
61app.delete("/api/memories/:id", async (c) => {
62  const id = c.req.param("id");
63  try {
75// --- Blob Image Serving Routes ---
76
77// GET /api/images/:filename - Serve images from blob storage
78app.get("/api/images/:filename", async (c) => {
79  const filename = c.req.param("filename");
80

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

85  console.log(e.text);
86
87  // Get Anthropic API key from environment
88  const apiKey = Deno.env.get("ANTHROPIC_API_KEY");
89  if (!apiKey) {
90    console.error("Anthropic API key is not configured for this val.");
91    return;
92  }
93
94  // Initialize Anthropic client
95  const anthropic = new Anthropic({ apiKey });
96
97  // Process each image attachment serially

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`

53You'll need to set up some environment variables to make it run.
54
55- `ANTHROPIC_API_KEY` for LLM calls
56- You'll need to follow [these instructions](https://docs.val.town/integrations/telegram/) to make a telegram bot, and set `TELEGRAM_TOKEN`. You'll also need to get a `TELEGRAM_CHAT_ID` in order to have the bot remember chat contents.
57- For the Google Calendar integration you'll need `GOOGLE_CALENDAR_ACCOUNT_ID` and `GOOGLE_CALENDAR_CALENDAR_ID`. See [these instuctions](https://www.val.town/v/stevekrouse/pipedream) for details.

97
98export async function sendDailyBriefing(chatId?: string, today?: DateTime) {
99  // Get API keys from environment
100  const apiKey = Deno.env.get("ANTHROPIC_API_KEY");
101  const telegramToken = Deno.env.get("TELEGRAM_TOKEN");
102
106  }
107
108  if (!apiKey) {
109    console.error("Anthropic API key is not configured.");
110    return;
111  }
122
123  // Initialize Anthropic client
124  const anthropic = new Anthropic({ apiKey });
125
126  // Initialize Telegram bot
162
163  // disabled title for now, it seemes unnecessary...
164  // await bot.api.sendMessage(chatId, `*${title}*`, { parse_mode: "Markdown" });
165
166  // Then send the main content
169
170  if (content.length <= MAX_LENGTH) {
171    await bot.api.sendMessage(chatId, content, { parse_mode: "Markdown" });
172    // Store the briefing in chat history
173    await storeChatMessage(
198    // Send each chunk as a separate message and store in chat history
199    for (const chunk of chunks) {
200      await bot.api.sendMessage(chatId, chunk, { parse_mode: "Markdown" });
201      // Store each chunk in chat history
202      await storeChatMessage(