Val Town Code SearchReturn to Val Town

11 * @returns Array of previous fun facts
12 */
13async function getPreviousFunFacts() {
14  try {
15    const result = await sqlite.execute(
32 * @param dates Array of date strings in ISO format
33 */
34async function deleteExistingFunFacts(dates) {
35  try {
36    for (const date of dates) {
51 * @param factText The fun fact text
52 */
53async function insertFunFact(date, factText) {
54  try {
55    await sqlite.execute(
75 * @returns Array of generated fun facts
76 */
77async function generateFunFacts(previousFacts) {
78  try {
79    // Get API key from environment
197 * @returns Array of parsed facts
198 */
199function parseFallbackFacts(responseText, expectedDates) {
200  // Try to extract facts using regex
201  const factPattern = /(\d{4}-\d{2}-\d{2})["']?[,:]?\s*["']?(.*?)["']?[,}]/gs;
260
261/**
262 * Main function to generate and store fun facts for the next 7 days
263 */
264export async function generateAndStoreFunFacts() {
265  try {
266    // Get previous fun facts
301 * Intended to be used as a Val Town cron job
302 */
303export default async function() {
304  console.log("Running fun facts generation cron job...");
305  return await generateAndStoreFunFacts();

8### 1. Script Vals
9
10- Basic JavaScript/TypeScript functions
11- Can be imported by other vals
12- Example structure:
13
14```typescript
15export function myFunction() {
16  // Your code here
17}
25
26```typescript
27export default async function (req: Request) {
28  return new Response("Hello World");
29}
37
38```typescript
39export default async function () {
40  // Scheduled task code
41}
49
50```typescript
51export default async function (email: Email) {
52  // Process email
53}
57
58- Ask clarifying questions when requirements are ambiguous
59- Provide complete, functional solutions rather than skeleton implementations
60- Test your logic against edge cases before presenting the final solution
61- Ensure all code follows Val Town's specific platform requirements
70- **Never bake in secrets into the code** - always use environment variables
71- Include comments explaining complex logic (avoid commenting obvious operations)
72- Follow modern ES6+ conventions and functional programming practices if possible
73
74## Val Town Standard Libraries
75
76Val Town provides several hosted services and utility functions.
77
78### Blob Storage
124```
125
126## Val Town Utility Functions
127
128Val Town provides several utility functions to help with common project tasks.
129
130### Importing Utilities
176      {
177        name: "should add numbers correctly",
178        function: () => {
179          expect(1 + 1).toBe(2);
180        },
210│   ├── database/
211│   │   ├── migrations.ts    # Schema definitions
212│   │   ├── queries.ts       # DB query functions
213│   │   └── README.md
214│   ├── index.ts             # Main entry point
226└── shared/
227    ├── README.md
228    └── utils.ts             # Shared types and functions
229```
230
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:
235  ```ts
236  // Use the serveFile utility to handle content types automatically
273- Run migrations on startup or comment out for performance
274- Change table names when modifying schemas rather than altering
275- Export clear query functions with proper TypeScript typing
276- Follow the queries and migrations pattern from the example
277

1import { sendDailyBriefing } from "./sendDailyBrief.ts";
2
3export async function cronDailyBrief() {
4  try {
5    const chatId = Deno.env.get("TELEGRAM_CHAT_ID");

4
5- Ask clarifying questions when requirements are ambiguous
6- Provide complete, functional solutions rather than skeleton implementations
7- Test your logic against edge cases before presenting the final solution
8- Ensure all code follows Val Town's specific platform requirements
17- **Never bake in secrets into the code** - always use environment variables
18- Include comments explaining complex logic (avoid commenting obvious operations)
19- Follow modern ES6+ conventions and functional programming practices if possible
20
21## Types of triggers
28
29```ts
30export default async function (req: Request) {
31  return new Response("Hello World");
32}
42
43```ts
44export default async function () {
45  // Scheduled task code
46}
56
57```ts
58export default async function (email: Email) {
59  // Process email
60}
66## Val Town Standard Libraries
67
68Val Town provides several hosted services and utility functions.
69
70### Blob Storage
120```
121
122## Val Town Utility Functions
123
124Val Town provides several utility functions to help with common project tasks.
125
126### Importing Utilities
200│   ├── database/
201│   │   ├── migrations.ts    # Schema definitions
202│   │   ├── queries.ts       # DB query functions
203│   │   └── README.md
204│   └── routes/              # Route modules
219└── shared/
220    ├── README.md
221    └── utils.ts             # Shared types and functions
222```
223
226- Hono is the recommended API framework
227- Main entry point should be `backend/index.ts`
228- **Static asset serving:** Use the utility functions to read and serve project files:
229  ```ts
230  import { readFile, serveFile } from "https://esm.town/v/std/utils@85-main/index.ts";
260- Run migrations on startup or comment out for performance
261- Change table names when modifying schemas rather than altering
262- Export clear query functions with proper TypeScript typing
263
264## Common Gotchas and Solutions

4
5- Ask clarifying questions when requirements are ambiguous
6- Provide complete, functional solutions rather than skeleton implementations
7- Test your logic against edge cases before presenting the final solution
8- Ensure all code follows Val Town's specific platform requirements
17- **Never bake in secrets into the code** - always use environment variables
18- Include comments explaining complex logic (avoid commenting obvious operations)
19- Follow modern ES6+ conventions and functional programming practices if possible
20
21## Types of triggers
28
29```ts
30export default async function (req: Request) {
31  return new Response("Hello World");
32}
42
43```ts
44export default async function () {
45  // Scheduled task code
46}
56
57```ts
58export default async function (email: Email) {
59  // Process email
60}
66## Val Town Standard Libraries
67
68Val Town provides several hosted services and utility functions.
69
70### Blob Storage
120```
121
122## Val Town Utility Functions
123
124Val Town provides several utility functions to help with common project tasks.
125
126### Importing Utilities
200│   ├── database/
201│   │   ├── migrations.ts    # Schema definitions
202│   │   ├── queries.ts       # DB query functions
203│   │   └── README.md
204│   └── routes/              # Route modules
219└── shared/
220    ├── README.md
221    └── utils.ts             # Shared types and functions
222```
223
226- Hono is the recommended API framework
227- Main entry point should be `backend/index.ts`
228- **Static asset serving:** Use the utility functions to read and serve project files:
229  ```ts
230  import { readFile, serveFile } from "https://esm.town/v/std/utils@85-main/index.ts";
260- Run migrations on startup or comment out for performance
261- Change table names when modifying schemas rather than altering
262- Export clear query functions with proper TypeScript typing
263
264## Common Gotchas and Solutions

5import satori from "npm:satori";
6
7export function handleImageEndpoints(app: Hono) {
8  const headers = {
9    "Content-Type": "image/png",
15}
16
17export async function homeImage() {
18  return await ogImage(
19    <div
53//////////
54
55export async function ogImage(body) {
56  const svg = await satori(
57    body,

17 * Custom hook to fetch and manage project files
18 */
19export function useProjectFiles({
20  projectId,
21  branchId,

13}
14
15export function useChatLogic({
16  project,
17  branchId,

3import fileWithLinesNumbers from "../utils/fileWithLinesNumbers.ts";
4
5function printFileType(file: any){
6  if (file.type === "interval")
7    return " (cron)"
14 * View a file or directory in a Val Town project
15 */
16async function view(
17  vt: ValTown,
18  project: any,
71 * Replace a string in a file in a Val Town project
72 */
73async function str_replace(
74  vt: ValTown,
75  project: any,
133 * Create a new file in a Val Town project
134 */
135async function create(vt: ValTown, project: any, branch_id: string | undefined, path: string, file_text?: string) {
136  let type_: "file" | "http" | "script";
137  if (path.includes("backend/index.ts")) type_ = "http";
167 * Insert a string at a specific line in a file in a Val Town project
168 */
169async function insert(
170  vt: ValTown,
171  project: any,
210 * Undo the last edit to a file in a Val Town project (not implemented)
211 */
212async function undo_edit(vt: ValTown, project: any, branch_id: string | undefined) {
213  return {
214    type: "error",
220 * Creates a text editor tool for editing files in a Val Town project
221 */
222export function getTextEditorTool(bearerToken: string, project: any, branch_id: string | undefined) {
223  const vt = new ValTown({ bearerToken });
224  return anthropic.tools.textEditor_20250124({

4
5- Ask clarifying questions when requirements are ambiguous
6- Provide complete, functional solutions rather than skeleton implementations
7- Test your logic against edge cases before presenting the final solution
8- Ensure all code follows Val Town's specific platform requirements
17- **Never bake in secrets into the code** - always use environment variables
18- Include comments explaining complex logic (avoid commenting obvious operations)
19- Follow modern ES6+ conventions and functional programming practices if possible
20
21## Types of triggers
28
29```ts
30export default async function (req: Request) {
31  return new Response("Hello World");
32}
40
41```ts
42export default async function () {
43  // Scheduled task code
44}
52
53```ts
54export default async function (email: Email) {
55  // Process email
56}
60## Val Town Standard Libraries
61
62Val Town provides several hosted services and utility functions.
63
64### Blob Storage
114```
115
116## Val Town Utility Functions
117
118Val Town provides several utility functions to help with common project tasks.
119
120### Importing Utilities
194│   ├── database/
195│   │   ├── migrations.ts    # Schema definitions
196│   │   ├── queries.ts       # DB query functions
197│   │   └── README.md
198│   └── routes/              # Route modules
213└── shared/
214    ├── README.md
215    └── utils.ts             # Shared types and functions
216```
217
220- Hono is the recommended API framework
221- Main entry point should be `backend/index.ts`
222- **Static asset serving:** Use the utility functions to read and serve project files:
223  ```ts
224  import { readFile, serveFile } from "https://esm.town/v/std/utils@85-main/index.ts";
254- Run migrations on startup or comment out for performance
255- Change table names when modifying schemas rather than altering
256- Export clear query functions with proper TypeScript typing
257
258## Common Gotchas and Solutions