[API]: Provide maker rebate program API

[JonRay15]

API Overview

In order to ... tell users their current maker rebate boost level
We will build an API to... provide the tier and the boost level
So that ... they can understand their rebate boost

Specs

https://github.com/vegaprotocol/specs/pull/2293/files

API request details

• Create an API that provides informaton on the current High Volume Maker Rebate program including
  • benefit_tiers
    • minimum_party_maker_volume_fraction
    • additional_maker_rebate
    • end_of_program_timestamp
    • window_length

Filtering requirements

• 1st API - NONE
• 2nd API
  • partyId

Sample API output (optional)

Assume it would look a lot like this

{
  "currentReferralProgram": {
    "version": "2",
    "id": "20c76e3ea2d1fa205c626354cb506b14a23d2b288dad15990fb0f4b4cc3418dc",
    "benefitTiers": [
      {
        "minimumRunningNotionalTakerVolume": "10000",
        "minimumEpochs": "1",
        "referralRewardFactor": "0.001",
        "referralDiscountFactor": "0.001"
      },
      {
        "minimumRunningNotionalTakerVolume": "500000",
        "minimumEpochs": "6",
        "referralRewardFactor": "0.005",
        "referralDiscountFactor": "0.005"
      },
      {
        "minimumRunningNotionalTakerVolume": "1000000",
        "minimumEpochs": "24",
        "referralRewardFactor": "0.01",
        "referralDiscountFactor": "0.01"
      }
    ],
    "endOfProgramTimestamp": "1793637545000000000",
    "windowLength": "3",
  }
}

Questions

Open questions about the feature implementation, what can be done with the APIs, or currently unresolved questions around the feature.

[JonRay15]

Apparently this is done