vega-frontend-monorepo/apps/trading/components/fees-container/Fees.graphql

query DiscountPrograms {
  currentReferralProgram {
    benefitTiers {
      minimumEpochs
      minimumRunningNotionalTakerVolume
      referralDiscountFactor
    }
    windowLength
  }
  currentVolumeDiscountProgram {
    benefitTiers {
      minimumRunningNotionalTakerVolume
      volumeDiscountFactor
    }
    windowLength
  }
}

query Fees(
  $partyId: ID!
  $volumeDiscountEpochs: Int!
  $referralDiscountEpochs: Int!
) {
  epoch {
    id
  }
  volumeDiscountStats(
    partyId: $partyId
    pagination: { last: $volumeDiscountEpochs }
  ) {
    edges {
      node {
        atEpoch
        discountFactor
        runningVolume
      }
    }
  }
  referralSetReferees(referee: $partyId) {
    edges {
      node {
        atEpoch
      }
    }
  }
  referralSetStats(
    partyId: $partyId
    pagination: { last: $referralDiscountEpochs }
  ) {
    edges {
      node {
        atEpoch
        discountFactor
        referralSetRunningNotionalTakerVolume
      }
    }
  }
}