pricing

Uniswap · Dec 9, 2024 · 556b730 · 556b730
1 parent 802e1f8
commit 556b730
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diff --git a/src/mappings/pair.ts b/src/mappings/pair.ts
@@ -36,6 +36,10 @@ export function handleMint(event: Mint): void {
   mint.amount1 = token1Amount as BigDecimal
   mint.save()
 
+  pair.reserve0 = pair.reserve0.plus(token0Amount)
+  pair.reserve1 = pair.reserve1.plus(token1Amount)
+  pair.save()
+
   token0.totalLiquidity = token0.totalLiquidity.plus(token0Amount)
   token1.totalLiquidity = token1.totalLiquidity.plus(token1Amount)
   token0.save()
@@ -66,6 +70,10 @@ export function handleBurn(event: Burn): void {
   burn.to = event.params.to
   burn.save()
 
+  pair.reserve0 = pair.reserve0.minus(token0Amount)
+  pair.reserve1 = pair.reserve1.minus(token1Amount)
+  pair.save()
+
   token0.totalLiquidity = token0.totalLiquidity.minus(token0Amount)
   token1.totalLiquidity = token1.totalLiquidity.minus(token1Amount)
   token0.save()
@@ -100,6 +108,10 @@ export function handleSwap(event: Swap): void {
   swap.to = event.params.to
   swap.save()
 
+  pair.reserve0 = pair.reserve0.minus(token0AmountOut).plus(token0AmountIn)
+  pair.reserve1 = pair.reserve1.minus(token1AmountOut).plus(token1AmountIn)
+  pair.save()
+
   token0.totalLiquidity = token0.totalLiquidity.minus(token0AmountOut).plus(token0AmountIn)
   token1.totalLiquidity = token1.totalLiquidity.minus(token1AmountOut).plus(token1AmountIn)
   token0.save()

diff --git a/src/mappings/pricing.ts b/src/mappings/pricing.ts
@@ -0,0 +1,5 @@
+const STABLECOINS: string[] = [
+  '0x6b175474e89094c44da98b954eedeac495271d0f', // DAI
+  '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48', // USDC
+  '0xdac17f958d2ee523a2206206994597c13d831ec7', // USDT
+]