How to get a token pair's uniswap trade history?

Question

What I am trying to do is this :-

Given an pair (say DAI/ETH pair), i want to display the latest 10-15 trades (buy, sell, add to pool and remove from pool) and also display a graph of price for that pair.

How can i get the relevent data using uniswap js sdk/api?

Answer 1

You can use the Uniswap TheGraph for this! For example a query to get the last 10 swaps from the DAI/ETH pair would be:

{
    swaps(first: 10, where: { pair: "0xa478c2975ab1ea89e8196811f51a7b7ade33eb11" } orderBy: timestamp, orderDirection: desc) {
      transaction {
        id
        timestamp
      }
      id
      pair {
        token0 {
          id
          symbol
        }
        token1 {
          id
          symbol
        }
      }
      amount0In
      amount0Out
      amount1In
      amount1Out
      amountUSD
      to
    }
}

You can play around with queries at: https://thegraph.com/explorer/subgraph/uniswap/uniswap-v2. Integration into the frontend would happen with something like Apollo Client.

In fact this is also what the Uniswap Info is doing. It's open-source, so look around for example queries and how to use them.

For more information on how TheGraph and queries work, I just posted a blog-post about it: https://soliditydeveloper.com/thegraph.