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Pulsar Subgraph

Pulsar is a decentralized time-weighted average market maker protocol for automated token exchange on Ethereum.

This subgraph dynamically tracks any pair created by the pulsar factory. It tracks of the current state of Pulsar contracts, and contains derived stats for things like historical data and USD prices.

  • aggregated data across pairs and tokens,
  • data on individual pairs and tokens,
  • data on transactions
  • data on liquidity providers
  • historical data on Pulsar, pairs or tokens, aggregated by day

Running Locally

Make sure to update package.json settings to point to your own graph account.

Queries

Below are a few ways to show how to query the pulsar-subgraph for data. The queries show most of the information that is queryable, but there are many other filtering options that can be used, just check out the querying api. These queries can be used locally or in The Graph Explorer playground.

Key Entity Overviews

PulsarFactory

Contains data across all of Pulsar. This entity tracks important things like total liquidity (in ETH and USD, see below), all time volume, transaction count, number of pairs and more.

Token

Contains data on a specific token. This token specific data is aggregated across all pairs, and is updated whenever there is a transaction involving that token.

Order

Contains data on a specific order.

Pair

Contains data on a specific pair.

Transaction

Every transaction on Pulsar is stored. Each transaction contains an array of mints, burns, and swaps that occured within it.

Mint, Burn, InstantSwap, TermSwap, CancelOrder, WithdrawOrder

These contain specifc information about a transaction. Things like which pair triggered the transaction, amounts, sender, recipient, and more. Each is linked to a parent Transaction entity.

Example Queries

Querying Aggregated Pulsar Data

This query fetches aggredated data from all pulsar pairs and tokens, to give a view into how much activity is happening within the whole protocol.

{
  pulsarFactories(first: 1) {
    pairCount
    totalVolumeUSD
    totalLiquidityUSD
  }
}

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Pulsar Subgraph 📊

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