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{book.title}

{author ? author.name : 'Unknown Author'}

${book.price.toFixed(2)}

\n \n

\n );\n}\n\nfunction AuthorCard({ author }: { author: Author }) {\n return (\n

{author.name}

{author.bio}

\n );\n}\n\nfunction BookStore() {\n const [books, setBooks] = useState([]);\n const [authors, setAuthors] = useState([]);\n const [view, setView] = useState<'books' | 'authors'>('books');\n const [loading, setLoading] = useState(true);\n\n useEffect(() => {\n Promise.all([\n fetch('/books').then(response => response.json()),\n fetch('/authors').then(response => response.json())\n ]).then(([bookData, authorData]) => {\n setBooks(bookData);\n setAuthors(authorData);\n setLoading(false);\n });\n }, []);\n\n if (loading) return

;\n\n return (\n

📚 Deno Book Store

\n \n \n

\n {view === 'books' ? (\n

\n {books.map(book => (\n \n ))}\n

\n ) : (\n

\n {authors.map(author => (\n \n ))}\n

\n )}\n \n View Source\n \n

\n );\n}\n\nfunction client() {\n createRoot(document.getElementById(\"root\")).render();\n}\nif (typeof document !== \"undefined\") { client(); }\n\nexport default async function server(request: Request): Promise {\n const { sqlite } = await import(\"https://esm.town/v/stevekrouse/sqlite\");\n const KEY = new URL(import.meta.url).pathname.split(\"/\").at(-1);\n const SCHEMA_VERSION = 2;\n\n // Ensure authors table exists\n await sqlite.execute(`\n CREATE TABLE IF NOT EXISTS ${KEY}_authors_${SCHEMA_VERSION} (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n name TEXT NOT NULL,\n bio TEXT,\n portrait TEXT\n )\n `);\n\n // Ensure books table exists with author_id foreign key\n await sqlite.execute(`\n CREATE TABLE IF NOT EXISTS ${KEY}_books_${SCHEMA_VERSION} (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n title TEXT NOT NULL,\n author_id INTEGER NOT NULL,\n price REAL NOT NULL,\n cover TEXT,\n FOREIGN KEY(author_id) REFERENCES ${KEY}_authors_${SCHEMA_VERSION}(id)\n )\n `);\n\n // If no authors, seed initial data\n const authorCount = await sqlite.execute(`SELECT COUNT(*) as count FROM ${KEY}_authors_${SCHEMA_VERSION}`);\n if (authorCount.rows[0].count === 0) {\n const initialAuthors = [\n { name: \"John Doe\", bio: \"Expert in Deno and TypeScript\", portrait: \"https://maxm-imggenurl.web.val.run/john-doe-portrait\" },\n { name: \"Jane Smith\", bio: \"Web development and TypeScript enthusiast\", portrait: \"https://maxm-imggenurl.web.val.run/jane-smith-portrait\" },\n { name: \"Alex Johnson\", bio: \"Full-stack developer and tech writer\", portrait: \"https://maxm-imggenurl.web.val.run/alex-johnson-portrait\" }\n ];\n\n for (const author of initialAuthors) {\n await sqlite.execute(\n `INSERT INTO ${KEY}_authors_${SCHEMA_VERSION} (name, bio, portrait) VALUES (?, ?, ?)`,\n [author.name, author.bio, author.portrait]\n );\n }\n\n const insertedAuthors = await sqlite.execute(`SELECT id, name FROM ${KEY}_authors_${SCHEMA_VERSION}`);\n \n const initialBooks = [\n { title: \"Deno Fundamentals\", authorName: \"John Doe\", price: 29.99, cover: \"https://maxm-imggenurl.web.val.run/programming-book-cover\" },\n { title: \"TypeScript in Action\", authorName: \"Jane Smith\", price: 34.50, cover: \"https://maxm-imggenurl.web.val.run/typescript-book-cover\" },\n { title: \"Web Development 2024\", authorName: \"Alex Johnson\", price: 39.99, cover: \"https://maxm-imggenurl.web.val.run/web-dev-book-cover\" }\n ];\n\n for (const book of initialBooks) {\n const authorId = insertedAuthors.rows.find(a => a.name === book.authorName)?.id;\n await sqlite.execute(\n `INSERT INTO ${KEY}_books_${SCHEMA_VERSION} (title, author_id, price, cover) VALUES (?, ?, ?, ?)`,\n [book.title, authorId, book.price, book.cover]\n );\n }\n }\n\n // Handle book fetching\n if (new URL(request.url).pathname === '/books') {\n const books = await sqlite.execute(`SELECT * FROM ${KEY}_books_${SCHEMA_VERSION}`);\n return new Response(JSON.stringify(books.rows), {\n headers: { 'Content-Type': 'application/json' }\n });\n }\n\n // Handle author fetching\n if (new URL(request.url).pathname === '/authors') {\n const authors = await sqlite.execute(`SELECT * FROM ${KEY}_authors_${SCHEMA_VERSION}`);\n return new Response(JSON.stringify(authors.rows), {\n headers: { 'Content-Type': 'application/json' }\n });\n }\n\n return new Response(`\n \n \n Deno Book Store\n \n \n \n

\n \n \n \n \n `, {\n headers: { 'Content-Type': 'text/html' }\n });\n}\n\nconst css = `\nbody {\n font-family: 'Arial', sans-serif;\n background-color: #f4f4f4;\n margin: 0;\n padding: 20px;\n}\n.bookstore {\n max-width: 1200px;\n margin: 0 auto;\n}\n.book-grid, .author-grid {\n display: grid;\n grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));\n gap: 20px;\n}\n.book-card, .author-card {\n background: white;\n border-radius: 8px;\n padding: 15px;\n text-align: center;\n box-shadow: 0 4px 6px rgba(0,0,0,0.1);\n transition: transform 0.3s;\n}\n.book-card:hover, .author-card:hover {\n transform: scale(1.05);\n}\n.book-card img, .author-card img {\n max-width: 100%;\n height: 300px;\n object-fit: cover;\n border-radius: 4px;\n}\n.book-card button {\n background-color: #4CAF50;\n color: white;\n border: none;\n padding: 10px 15px;\n border-radius: 4px;\n cursor: pointer;\n}\n.navigation {\n display: flex;\n justify-content: center;\n margin-bottom: 20px;\n}\n.navigation button {\n margin: 0 10px;\n padding: 10px 20px;\n background-color: #f0f0f0;\n border: none;\n border-radius: 4px;\n cursor: pointer;\n}\n.navigation button.active {\n background-color: #4CAF50;\n color: white;\n}\nh1 {\n text-align: center;\n color: #333;\n}\n`;","createdAt",["D",1740076955566],"version",1,"currentUserHasLiked","likeCount","forkCount","referenceCount","dependencyCount","commentCount","prCount","mergedPr",{"_128":129,"_130":131},"handle","seble4213","profileImageUrl","https://img.clerk.com/eyJ0eXBlIjoicHJveHkiLCJzcmMiOiJodHRwczovL2ltYWdlcy5jbGVyay5kZXYvb2F1dGhfZ2l0aHViL2ltZ18ydEdoZTBKSzNOZ00zdEdjcmNNY0E3bkpQc2gifQ","forkedVal","interval","slug","seble4213/bookStoreWebsite","description","@jsxImportSource https://esm.sh/react@18.2.0","versions",[140,143],{"_117":118,"_141":-5,"_115":142,"_112":110},"prId",["D",1740076955566],{"_117":31,"_141":-5,"_115":144,"_112":145},["D",1740075537855],"26aff69a-efb7-11ef-8e5a-e6cdfca9ef9f","recentThread","breadcrumbs","comments",[],"isOwner","routes/_app.v.$handle.$name.dependencies",{"_153":154,"_221":118,"_222":135,"_223":31,"_94":224},"dependenciesList",[155],{"_100":156,"_157":158},"08f95904-3584-11ef-8995-0e10024e3b32","initialData",{"_98":159,"_95":160,"_100":156,"_102":161,"_103":-5,"_104":105,"_106":162,"_107":163,"_109":164,"_111":26,"_112":164,"_113":165,"_115":166,"_117":167,"_119":26,"_120":168,"_122":169,"_123":118,"_124":118,"_121":170,"_125":31,"_126":-5,"_20":171,"_132":174,"_133":-7,"_136":179,"_180":-5,"_134":181,"_138":182},"sqlite","a0bf3b31-15a5-4d5c-880e-4b1e22c9bc18","76a8911e-393e-11ef-8e71-de64eea55b61","# LLM-Safe Fork of @std/sqlite\n\nWe found that LLMs have trouble with the inputs and outputs of our @std/sqlite method.\n\n1. It expects the input to be `(sql: string, args: any[])` but it's `{ sql: string, args: any[] }`\n2. It expects the output to be objects, but they are arrays\n\nInstead of struggling to teach it, we built this val to be a wrapper around @std/sqlite that adheres to what the LLMs expect. \n\nThis val is also backwards-compatible with @std/sqlite, so we're considering merging it in.","script","5631f2d0-dcb9-11ef-80ec-e6cdfca9ef9f","import { API_URL } from \"https://esm.town/v/std/API_URL\";\nimport { LibsqlError, type ResultSet, type Row, type TransactionMode } from \"npm:@libsql/client\";\nimport { z } from \"npm:zod\";\n\n/**\n * Every Val Town account comes with its own private\n * [SQLite database](https://www.sqlite.org/) that\n * is accessible from any of your vals.\n * ([Docs ↗](https://docs.val.town/std/sqlite))\n */\nexport const sqlite = {\n /**\n * Executes a SQLite statement.\n *\n * @param {InStatement} statement - The SQLite statement to execute.\n * @example String query:\n * `sqlite.execute(\"SELECT 1;\")`\n * @example Query with arguments:\n * `sqlite.execute({sql: \"SELECT * from books WHERE year > ?;\", args: [2020]})`\n */\n execute,\n\n /**\n * Executes a batch of SQLite statements.\n *\n * @param {InStatement[]} statements - An array of SQLite statements to execute.\n * @param {TransactionMode} [mode] - The transaction mode for the batch execution.\n */\n batch,\n};\n\n// ------------\n// Functions\n// ------------\n\nasync function execute(statement: InStatement, args?: InArgs): Promise {\n const res = await fetch(`${API_URL}/v1/sqlite/execute`, {\n method: \"POST\",\n headers: {\n Authorization: `Bearer ${Deno.env.get(\"valtown\")}`,\n },\n body: JSON.stringify({ statement: normalizeStatement(statement, args) }),\n });\n if (!res.ok) {\n throw createResError(await res.text());\n }\n const resultSet = await res.json();\n return upgradeResultSet(resultSet);\n}\n\nasync function batch(statements: InStatement[], mode?: TransactionMode): Promise {\n if (mode && ![\"write\", \"read\", \"deferred\"].includes(mode)) {\n throw new Error(\"Invalid transaction mode provided to sqlite.batch. Must be 'write', 'read', or 'deferred.\");\n }\n const res = await fetch(`${API_URL}/v1/sqlite/batch`, {\n method: \"POST\",\n headers: {\n Authorization: `Bearer ${Deno.env.get(\"valtown\")}`,\n },\n body: JSON.stringify({ statements: statements.map(s => normalizeStatement(s)), mode }),\n });\n if (!res.ok) {\n throw createResError(await res.text());\n }\n const resultSets = await res.json();\n return resultSets.map(upgradeResultSet);\n}\n\nfunction createResError(body: string) {\n try {\n const e = zLibsqlError.parse(JSON.parse(body));\n // e.message already contains the code, and LibsqlError adds the\n // code to the beginning, so we remove it here\n const msg = e.message.replace(e.code, \"\").replace(/^:\\s+/, \"\");\n return new LibsqlError(msg, e.code, e.rawCode);\n } catch (_) {\n // Failed to parse libsql error\n }\n return new Error(body);\n}\n\n/* Val Town's Turso Proxy returns rows as an array of values\n * Yet the LibSQL API has a Row type which behave as an array or object,\n * ie you can access it via numerical index or string\n */\ninterface ImpoverishedResultSet extends ResultSet {\n rows: any[];\n}\n\nfunction normalizeStatement(statement: InStatement, args?: InArgs) {\n if (Array.isArray(statement)) {\n // for the case of an array of arrays\n return normalizeStatement(statement[0], statement[1]);\n }\n if (typeof statement === \"string\") {\n if (args) {\n return { sql: statement, args };\n } else return statement;\n }\n else if (typeof statement === \"object\") {\n if (statement.args) {\n return statement;\n }\n if (args) {\n return { sql: statement.sql, args };\n }\n return statement.sql;\n }\n else throw new Error(\"Error normalizing sql input\");\n}\n\nfunction upgradeResultSet(results: ImpoverishedResultSet): ResultSet {\n return {\n ...results,\n rows: results.rows.map(row => rowFromSql(row, results.columns)),\n };\n}\n\n// adapted from\n// https://github.com/tursodatabase/libsql-client-ts/blob/17dd996b840c950dd22b871adfe4ba0eb4a5ead3/packages/libsql-client/src/sqlite3.ts#L314C1-L337C2\nfunction rowFromSql(\n sqlRow: Array,\n columns: Array,\n): Row {\n const row = {};\n // make sure that the \"length\" property is not enumerable\n Object.defineProperty(row, \"length\", { value: sqlRow.length });\n for (let i = 0; i < sqlRow.length; ++i) {\n const value = sqlRow[i];\n Object.defineProperty(row, i, { value });\n\n const column = columns[i];\n if (!Object.hasOwn(row, column)) {\n Object.defineProperty(row, column, {\n value,\n enumerable: true,\n configurable: true,\n writable: true,\n });\n }\n }\n return row as Row;\n}\n\n// ------------\n// Helpers\n// ------------\n\nconst zLibsqlError = z.object({\n message: z.string(),\n code: z.string(),\n rawCode: z.number().optional(),\n});\n\n// We patch these types to only support JSON values\nexport type InValue = null | string | number | boolean;\nexport type InArgs = Array | Record;\nexport type InStatement = {\n /**\n * The SQL statement to execute.\n */\n sql: string;\n\n /**\n * The arguments to bind to the SQL statement.\n */\n args: InArgs;\n} | string;",["D",1737987404484],13,10,13512,21,{"_128":172,"_130":173},"stevekrouse","https://images.clerk.dev/uploaded/img_2PqHa2Gsy93xQrjh2w78Xu0cChW.jpeg",{"_112":175,"_128":176,"_98":159,"_117":177,"_178":-5},"56c849ee-f1f8-11ee-9b87-cab58f78796a","std",6,"prDisabledHint","LLM-Safe Fork of @std/sqlite We found that LLMs have trouble with the inputs and outputs of our @std/sqlite method. It expects the input to be (sql: string, args: any[]) but it's { sql: string, args: any[] } It expects the output to be objects, but they are arrays Instead of struggling to teach it, we built this val to be a wrapper around @std/sqlite that adheres to what the LLMs expect. This val is also backwards-compatible with @std/sqlite, so we're considering merging it in.","latestEvaluation","stevekrouse/sqlite",[183,187,191,195,198,202,206,210,213,217],{"_115":184,"_117":167,"_185":186},["D",1737987404484],"n","1",{"_115":188,"_117":189,"_185":190},["D",1724087412304],12,"2",{"_115":192,"_117":193,"_185":194},["D",1724087404512],11,"3",{"_115":196,"_117":168,"_185":197},["D",1723494410142],"4",{"_115":199,"_117":200,"_185":201},["D",1723494389876],9,"5",{"_115":203,"_117":204,"_185":205},["D",1723494345363],8,"6",{"_115":207,"_117":208,"_185":209},["D",1723494323065],7,"7",{"_115":211,"_117":177,"_185":212},["D",1719604370206],"8",{"_115":214,"_117":215,"_185":216},["D",1719604260994],5,"9",{"_115":218,"_117":219,"_185":220},["D",1719604144103],4,"10","dependenciesCount","valname","page",{"_112":110,"_98":99,"_128":129,"_11":96,"_117":118,"_100":101,"_113":114,"_104":105,"_111":26,"_134":135},"routes/_app","actionData","errors"]