OpenAI Realtime API Voice Agent

\n\n

\n\n \n \n",[],[217],{"_104":227,"_95":228,"_159":229,"_161":-5,"_162":140,"_163":230,"_165":22,"_106":231,"_100":232,"_169":233,"_171":234,"_172":22,"_173":96,"_174":235,"_98":236},"9df05118-7a5f-11f0-ade3-0224a6c84d84","main.tsx","0198a962-fcd3-77e8-9abe-4d2fa0914f2f",111,["D",1755321153860],29,"http","import { Hono } from \"npm:hono\";\nimport {\n readFile,\n serveFile,\n} from \"https://esm.town/v/std/utils@85-main/index.ts\";\nimport mcp from \"./mcp.ts\";\nimport rtc from \"./rtc.ts\";\nimport sip from \"./sip.ts\";\nimport observer from \"./observer.ts\";\n\nconst app = new Hono();\napp.route(\"/rtc\", rtc);\napp.route(\"/sip\", sip);\napp.route(\"/observer\", observer);\napp.route(\"/mcp\", mcp);\n\napp.get(\"/\", async (c) => {\n const html = await readFile(\"/index.html\", import.meta.url);\n return c.html(html);\n});\n\nexport default app.fetch;",[],[228],{"_104":238,"_95":239,"_159":240,"_161":-5,"_162":140,"_163":241,"_165":22,"_106":242,"_100":243,"_169":191,"_171":244,"_172":22,"_173":-5,"_174":245,"_98":246},"502abc22-7a58-11f0-a4cd-0224a6c84d84","sip.ts","6676d24c-7a42-11f0-ab3b-0224a6c84d84",85,["D",1755318016903],15,"import { Hono } from \"npm:hono\";\nimport { Webhook } from \"npm:svix\";\nimport { makeHeaders, makeSession } from \"./utils.ts\";\n\nconst sip = new Hono();\n\n// POST /sip : webhook endpoint\nsip.post(\"/\", async (c) => {\n // Verify the webhook.\n const OPENAI_SIGNING_SECRET = Deno.env.get(\"OPENAI_SIGNING_SECRET\");\n if (!OPENAI_SIGNING_SECRET) {\n console.error(\"🔴 webhook secret not configured\");\n return c.text(\"Internal error\", 500);\n }\n const webhook = new Webhook(OPENAI_SIGNING_SECRET);\n const bodyStr = await c.req.text();\n let callId: string | undefined;\n try {\n const headers = Object.fromEntries(c.req.raw.headers.entries());\n const payload: any = webhook.verify(bodyStr, headers);\n callId = payload.data.call_id;\n console.log(\"✅ verified webhook:\", callId);\n } catch (error) {\n console.error(`🔴 verify failed: ${error}`);\n return c.text(\"Invalid signature\", 401);\n }\n\n // Accept the call.\n const url = `https://api.openai.com/v1/realtime/calls/${callId}/accept`;\n const headers = makeHeaders(\"application/json\");\n const body = JSON.stringify(makeSession());\n const opts = { method: \"POST\", headers, body };\n const resp = await fetch(url, opts);\n if (!resp.ok) {\n const errText = await resp.text().catch(() => \"\");\n console.error(`🔴 accept failed: ${errText}`);\n return c.text(\"Internal error\", 500);\n }\n console.log(\"✅ call accepted:\", callId);\n\n // Kick off observer in the background (fire-and-forget).\n const selfUrl = new URL(c.req.url);\n fetch(`${selfUrl.origin}/observer/${callId}`, { method: \"POST\" })\n .catch((e) => console.error(\"observer trigger failed:\", e));\n\n return c.newResponse(null);\n});\n\nexport default sip;",[],[239],{"_104":248,"_95":249,"_159":250,"_161":-5,"_162":140,"_163":251,"_165":22,"_106":252,"_100":253,"_169":191,"_171":254,"_172":22,"_173":-5,"_174":255,"_98":256},"c7af183e-822c-11f0-96cf-0224a6c84d84","trivia.ts","16d5e9ee-7bf0-11f0-a120-0224a6c84d84",118,["D",1756178928869],3,"// Val Town — TypeScript\n// Save as: `triviaMcp.ts` (or any name) and export the function/val.\n\nexport type TriviaResult = {\n category: string;\n difficulty: \"easy\" | \"medium\" | \"hard\";\n question: string;\n choices: string[]; // shuffled\n correctIndex: number; // index into `choices`\n correctAnswer: string; // convenience\n};\n\ntype OpenTDBResponse = {\n response_code: number;\n results: Array<{\n category: string;\n type: \"multiple\" | \"boolean\";\n difficulty: \"easy\" | \"medium\" | \"hard\";\n question: string;\n correct_answer: string;\n incorrect_answers: string[];\n }>;\n};\n\nexport async function triviaMcp(opts?: {\n category?: number; // OpenTDB category ID\n difficulty?: \"easy\" | \"medium\" | \"hard\";\n}): Promise {\n const params = new URLSearchParams({\n amount: \"1\",\n type: \"multiple\",\n });\n if (opts?.category) params.set(\"category\", String(opts.category));\n if (opts?.difficulty) params.set(\"difficulty\", opts.difficulty);\n\n const url = `https://opentdb.com/api.php?${params.toString()}`;\n const res = await fetch(url);\n if (!res.ok) throw new Error(`OpenTDB fetch failed: ${res.status}`);\n const data = (await res.json()) as OpenTDBResponse;\n\n if (data.response_code !== 0 || data.results.length === 0) {\n throw new Error(`OpenTDB returned no results (code ${data.response_code})`);\n }\n\n const r = data.results[0];\n\n // Minimal HTML entity decode (covers OpenTDB outputs).\n const decode = (s: string) =>\n s\n .replaceAll(\""\", '\"')\n .replaceAll(\"'\", \"'\")\n .replaceAll(\"'\", \"'\")\n .replaceAll(\"&\", \"&\")\n .replaceAll(\"<\", \"<\")\n .replaceAll(\">\", \">\");\n\n const correct = decode(r.correct_answer);\n const choicesRaw = [correct, ...r.incorrect_answers.map(decode)];\n\n // Fisher–Yates shuffle\n const choices = [...choicesRaw];\n for (let i = choices.length - 1; i > 0; i--) {\n const j = Math.floor(Math.random() * (i + 1));\n [choices[i], choices[j]] = [choices[j], choices[i]];\n }\n\n const correctIndex = choices.findIndex((c) => c === correct);\n\n return {\n category: r.category,\n difficulty: r.difficulty,\n question: decode(r.question),\n choices,\n correctIndex,\n correctAnswer: correct,\n };\n}\n\n// Example (Val):\n// export default async function() {\n// return await triviaMcp({ difficulty: \"medium\" });\n// }",[],[249],{"_104":258,"_95":259,"_159":260,"_161":-5,"_162":140,"_163":261,"_165":22,"_106":262,"_100":263,"_169":191,"_171":264,"_172":22,"_173":-5,"_174":265,"_98":266},"da6cb998-83b9-11f0-b22c-0224a6c84d84","utils.ts","acbfe6e4-7a42-11f0-80cf-0224a6c84d84",149,["D",1756349470510],36,"const MODEL = \"gpt-4o-realtime-preview-2025-07-29\";\nconst INSTRUCTIONS = `\n Greet the user in English, and start the conversation with an icebreaker.\n`;\n\nconst OPENAI_API_KEY = Deno.env.get(\"OPENAI_API_KEY\");\nif (!OPENAI_API_KEY) {\n throw new Error(\"🔴 OpenAI API key not configured\");\n}\n\nexport function makeHeaders(contentType?: string) {\n const obj: Record = {\n Authorization: `Bearer ${OPENAI_API_KEY}`,\n };\n if (contentType) obj[\"Content-Type\"] = contentType;\n return obj;\n}\n\nexport function makeSession() {\n return {\n type: \"realtime\",\n model: MODEL,\n instructions: INSTRUCTIONS,\n };\n}",[],[259],"files",[156,177,184,195,205,215,226,237,247,257],"counts",{"_271":32,"_272":273,"_274":275,"_276":273},"pulls","branches",2,"forks",19,"envVars","contents",[],{"_104":206,"_95":207,"_159":208,"_161":180,"_162":140,"_163":101,"_165":22,"_106":280,"_100":210,"_169":191,"_171":211,"_172":22,"_173":-5,"_98":281},["D",1756349561832],[179,207],"upstreamProject","upstreamBranch",{"_104":143,"_106":285,"_286":287,"_95":43,"_141":149,"_100":288,"_142":-5,"_144":-5,"_289":290,"_108":-5,"_153":22,"_110":147,"_152":94,"_16":121,"_151":291},["D",1749143813271],"updatedAt",["D",1755305179327],55,"lockfileKey","1755305180007-esm.town_v_jubertioai_hello-sip@55-main","hello-sip","emptyEnvVars","isNew","flags",[],"routes/_app.x.$handle.$name.branch.$branch.version.$version.code.$",{"_93":94,"_95":96,"_97":43,"_100":101,"_98":99,"_102":298,"_154":303,"_267":334,"_222":335,"_277":337,"_338":339,"_342":166,"_343":-5,"_344":345,"_346":347,"_348":349},{"_104":105,"_95":96,"_106":299,"_108":-5,"_109":22,"_110":111,"_112":113,"_114":-5,"_14":115,"_116":-5,"_117":22,"_118":-5,"_119":120,"_16":121,"_122":123,"_124":123,"_125":126,"_127":126,"_128":126,"_129":123,"_130":123,"_23":300,"_134":301,"_137":302,"_153":22},["D",1755188493466],{"_93":94,"_132":133},{"_93":94,"_136":133},{"_100":139,"_95":43,"_104":140,"_141":105,"_142":143,"_144":145,"_146":147,"_148":149,"_150":121,"_151":96,"_152":94},[304,307,319,322,325,328,331],{"_104":157,"_95":158,"_159":160,"_161":-5,"_162":140,"_163":164,"_165":166,"_106":167,"_100":168,"_169":170,"_171":-5,"_172":22,"_173":-5,"_174":305,"_98":306},[],[158],{"_104":178,"_95":179,"_159":180,"_161":-5,"_162":140,"_163":181,"_165":166,"_106":182,"_100":168,"_169":170,"_171":-5,"_172":22,"_173":-5,"_174":308,"_98":318},[309,312,315],{"_104":185,"_95":186,"_159":187,"_161":180,"_162":140,"_163":188,"_165":22,"_106":189,"_100":190,"_169":191,"_171":192,"_172":22,"_173":-5,"_174":310,"_98":311},[],[179,186],{"_104":196,"_95":197,"_159":198,"_161":180,"_162":140,"_163":199,"_165":22,"_106":200,"_100":201,"_169":191,"_171":202,"_172":22,"_173":-5,"_174":313,"_98":314},[],[179,197],{"_104":206,"_95":207,"_159":208,"_161":180,"_162":140,"_163":101,"_165":22,"_106":209,"_100":210,"_169":191,"_171":211,"_172":22,"_173":-5,"_174":316,"_98":317},[],[179,207],[179],{"_104":216,"_95":217,"_159":218,"_161":-5,"_162":140,"_163":219,"_165":22,"_106":220,"_100":221,"_169":222,"_171":223,"_172":22,"_173":-5,"_174":320,"_98":321},[],[217],{"_104":227,"_95":228,"_159":229,"_161":-5,"_162":140,"_163":230,"_165":22,"_106":231,"_100":232,"_169":233,"_171":234,"_172":22,"_173":96,"_174":323,"_98":324},[],[228],{"_104":238,"_95":239,"_159":240,"_161":-5,"_162":140,"_163":241,"_165":22,"_106":242,"_100":243,"_169":191,"_171":244,"_172":22,"_173":-5,"_174":326,"_98":327},[],[239],{"_104":248,"_95":249,"_159":250,"_161":-5,"_162":140,"_163":251,"_165":22,"_106":252,"_100":253,"_169":191,"_171":254,"_172":22,"_173":-5,"_174":329,"_98":330},[],[249],{"_104":258,"_95":259,"_159":260,"_161":-5,"_162":140,"_163":261,"_165":22,"_106":262,"_100":263,"_169":191,"_171":264,"_172":22,"_173":-5,"_174":332,"_98":333},[],[259],[304,307,309,312,315,319,322,325,328,331],{"_104":206,"_95":207,"_159":208,"_161":180,"_162":140,"_163":101,"_165":22,"_106":280,"_100":210,"_169":191,"_171":211,"_172":22,"_173":-5,"_98":336},[179,207],[],"upstream",{"_104":143,"_106":340,"_286":341,"_95":43,"_141":149,"_100":288,"_142":-5,"_144":-5,"_289":290,"_108":-5,"_153":22,"_110":147,"_152":94,"_16":121,"_151":291},["D",1749143813271],["D",1755305179327],"showCompareCallout","pull","ahead",296,"behind",8,"templates",[],"actionData","errors"]