perplexityai.js

const axios = require("axios")
const crypto = require("crypto")

const BASE = "https://www.perplexity.ai"

const header_dasar = {
  "User-Agent":
    "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36",
  Accept: "text/event-stream",
  "Accept-Language": "id-ID,id;q=0.9,en-US;q=0.8,en;q=0.7",
  "Content-Type": "application/json",
  Origin: BASE,
  Referer: BASE + "/",
}

function buat_cookie() {
  const cookies = {
    "pplx.visitor-id": crypto.randomUUID(),
    "pplx.session-id": crypto.randomUUID(),
    "pplx.edge-vid": crypto.randomUUID(),
    "pplx.edge-sid": crypto.randomUUID(),
  }

  return Object.entries(cookies)
    .map(([k, v]) => `${k}=${v}`)
    .join("; ")
}

function buat_payload(query) {
  return {
    params: {
      last_backend_uuid: crypto.randomUUID(),
      read_write_token: crypto.randomUUID(),
      attachments: [],
      language: "id-ID",
      timezone: "Asia/Jakarta",
      search_focus: "internet",
      sources: ["web"],
      frontend_uuid: crypto.randomUUID(),
      mode: "copilot",
      model_preference: "turbo",
      query_source: "followup",
      version: "2.18",
    },
    query_str: query,
  }
}

function parse_sse(raw) {
  const lines = raw.split("\n")

  for (let i = lines.length - 1; i >= 0; i--) {
    if (!lines[i].startsWith("data: ")) continue

    try {
      const d = JSON.parse(lines[i].slice(6))
      if (d.text && d.final) {
        const parsed = JSON.parse(d.text)

        for (const item of parsed) {
          if (item.step_type === "FINAL" && item.content?.answer) {
            return JSON.parse(item.content.answer).answer
              .replace(/\[\d+\]/g, "")
              .trim()
          }
        }
      }
    } catch {}
  }

  return null
}

async function perplexity(query) {
  const { data } = await axios.post(
    `${BASE}/rest/sse/perplexity_ask`,
    JSON.stringify(buat_payload(query)),
    {
      headers: {
        ...header_dasar,
        Cookie: buat_cookie(),
        "x-request-id": crypto.randomUUID(),
      },
      timeout: 30000,
      responseType: "text",
    }
  )

  const hasil = parse_sse(data)
  if (!hasil) throw new Error("gagal dapet jawaban")

  return hasil
}

;(async () => {
  const query = "apa kabar kamu?"

  try {
    const result = await perplexity(query)

    console.log({
      status: true,
      query,
      answer: result,
    })
  } catch (e) {
    console.log({
      status: false,
      message: e.message,
    })
  }
})()