Initial commit: add .gitignore and README

examples/subgraphs/uniswap-v3-pools.graphql

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+# Uniswap v3: Query pool data and swap information
+# 
+# Endpoint: https://api.thegraph.com/subgraphs/name/uniswap/uniswap-v3
+# 
+# Example queries for:
+# - Pool information
+# - Token prices
+# - Swap history
+# - Liquidity data
+
+# Query pool by token pair
+query GetPoolByPair($token0: String!, $token1: String!, $fee: BigInt!) {
+  pools(
+    where: {
+      token0: $token0,
+      token1: $token1,
+      feeTier: $fee
+    }
+    orderBy: totalValueLockedUSD
+    orderDirection: desc
+    first: 1
+  ) {
+    id
+    token0 {
+      id
+      symbol
+      name
+      decimals
+    }
+    token1 {
+      id
+      symbol
+      name
+      decimals
+    }
+    feeTier
+    liquidity
+    sqrtPrice
+    tick
+    token0Price
+    token1Price
+    volumeUSD
+    tvlUSD
+    totalValueLockedUSD
+  }
+}
+
+# Query swap history for a pool
+query GetPoolSwaps($poolId: String!, $first: Int = 100) {
+  swaps(
+    where: { pool: $poolId }
+    orderBy: timestamp
+    orderDirection: desc
+    first: $first
+  ) {
+    id
+    timestamp
+    transaction {
+      id
+      blockNumber
+    }
+    pool {
+      id
+      token0 {
+        symbol
+      }
+      token1 {
+        symbol
+      }
+    }
+    sender
+    recipient
+    amount0
+    amount1
+    amountUSD
+    sqrtPriceX96
+    tick
+  }
+}
+
+# Query pool day data for historical analysis
+query GetPoolDayData($poolId: String!, $days: Int = 30) {
+  poolDayDatas(
+    where: { pool: $poolId }
+    orderBy: date
+    orderDirection: desc
+    first: $days
+  ) {
+    id
+    date
+    pool {
+      id
+      token0 {
+        symbol
+      }
+      token1 {
+        symbol
+      }
+    }
+    liquidity
+    sqrtPrice
+    token0Price
+    token1Price
+    volumeUSD
+    tvlUSD
+    feesUSD
+    open
+    high
+    low
+    close
+  }
+}
+
+# Query top pools by TVL
+query GetTopPoolsByTVL($first: Int = 10) {
+  pools(
+    orderBy: totalValueLockedUSD
+    orderDirection: desc
+    first: $first
+  ) {
+    id
+    token0 {
+      symbol
+      name
+    }
+    token1 {
+      symbol
+      name
+    }
+    feeTier
+    liquidity
+    volumeUSD
+    tvlUSD
+    totalValueLockedUSD
+  }
+}
+