GET /tvl

GET /api/tvl

{
  "data": 48200000,
  "timestamp": 1713600000000
}

interface TVLBreakdown {
  total: number
  dex: number
  lending: number
  lst: number
  yield: number
  perps: number
  other: number
}

{
  "data": {
    "total": 48200000,
    "dex": 12400000,
    "lending": 18600000,
    "lst": 9800000,
    "yield": 4200000,
    "perps": 2100000,
    "other": 1100000
  },
  "timestamp": 1713600000000
}

# Total only
curl "https://your-app.vercel.app/api/tvl"

# With category breakdown
curl "https://your-app.vercel.app/api/tvl?breakdown=true"

interface TVLBreakdown {
  total: number
  dex: number
  lending: number
  lst: number
  yield: number
  perps: number
  other: number
}

// Total TVL
async function fetchTVL(): Promise<number> {
  const res = await fetch('https://your-app.vercel.app/api/tvl')
  const json = await res.json()
  return json.data as number
}

// Breakdown
async function fetchTVLBreakdown(): Promise<TVLBreakdown> {
  const res = await fetch('https://your-app.vercel.app/api/tvl?breakdown=true')
  const json = await res.json()
  return json.data as TVLBreakdown
}

const total = await fetchTVL()
console.log(`Total DeFi TVL: $${(total / 1e6).toFixed(1)}M`)

const breakdown = await fetchTVLBreakdown()
console.log(`  DEX:     $${(breakdown.dex / 1e6).toFixed(1)}M`)
console.log(`  Lending: $${(breakdown.lending / 1e6).toFixed(1)}M`)
console.log(`  LST:     $${(breakdown.lst / 1e6).toFixed(1)}M`)
console.log(`  Yield:   $${(breakdown.yield / 1e6).toFixed(1)}M`)

// pages/api/tvl.ts
import { getMonadDeFiTVL } from 'rampart-monad'
import type { NextApiRequest, NextApiResponse } from 'next'

export default async function handler(req: NextApiRequest, res: NextApiResponse) {
  const breakdown = req.query.breakdown === 'true'

  try {
    const tvl = await getMonadDeFiTVL()

    const data = breakdown ? tvl : tvl.total

    res
      .setHeader('Cache-Control', 's-maxage=60, stale-while-revalidate=120')
      .json({ data, timestamp: Date.now() })
  } catch (err) {
    res.status(500).json({ data: null, timestamp: Date.now(), error: String(err) })
  }
}