search endpoints: cannot filter by impact.method

In the old API, for the footprint-gold-batch endpoint, when specifying a given scope, only one record with one impact.method was returned.

The new /search/batch or /search API endpoints return multiple objects for the same scope with different impact.methods.

Example

Request

[
  {
    "activity_id": "raising_of_animals_nec_services_to_agriculture",
    "country": "PER",
    "impact_category": "land_use",
    "impact_indicator": "pastures",
    "flow": "land_occupation",    
    "activity_classification_system": "gloria",
    "scope": "3",
    "valuation": "bp",
    "primary_data_year": 2021,
    "size": 50    
  }
]

Response

[
  {
    "num_records": 2,
    "records": [
      {
        "record_id": "37ea688e-c1f1-4883-a21c-cb5e99fbc1f8",
        "activity": {
          "activity_id": "raising_of_animals_nec_services_to_agriculture",
          "unit": "USD",
          "lca_activity": "cradle_to-gate",
          "classification": {
            "type": "gloria",
            "code": ""
          }
        },
        "location": {
          "region": "South America",
          "country": "PER",
          "subnational": ""
        },
        "impact": {
          "category": "land_use",
          "indicator": "pastures",
          "flow": "land_occupation",
          "unit": "ha",
          "scope": {
            "type": 3,
            "valuation": "bp"
          },
          "method": "faostat"
        },
        "source_data": {
          "source": "IELab",
          "data_source_release_version": "059a",
          "source_url": "https://ielab.info/labs/ielab-gloria",
          "fpl_data_version": "v1.1.6",
          "release_date": 2024
        },
        "value": 8.708279251368718e-07,
        "unit": "ha/USD",
        "data_year": 2021
      },
      {
        "record_id": "4cb6d676-2f25-41da-afdf-ad549bc901ff",
        "activity": {
          "activity_id": "raising_of_animals_nec_services_to_agriculture",
          "unit": "USD",
          "lca_activity": "cradle_to_shelf",
          "classification": {
            "type": "gloria",
            "code": ""
          }
        },
        "location": {
          "region": "South America",
          "country": "PER",
          "subnational": ""
        },
        "impact": {
          "category": "land_use",
          "indicator": "pastures",
          "flow": "land_occupation",
          "unit": "ha",
          "scope": {
            "type": 3,
            "valuation": "bp"
          },
          "method": "SCP-HAT"
        },
        "source_data": {
          "source": "FootprintLab",
          "data_source_release_version": "v059",
          "source_url": "https://www.footprintlab.io/",
          "fpl_data_version": "v1.1.5",
          "release_date": 2025
        },
        "value": 9.999999999975306e-07,
        "unit": "ha/USD",
        "data_year": 2021
      }
    ],
    "info": null
  }
]

So in this example, both impact.method's SCP-HAT and faostat are returned.

Feature Request

Please provide the ability to filter for a given impact.method with a query parameter.

We are currently migrating to the new API. Not having the filter ability means a different behavior to the previous API version. If we cannot filter via query parameter, we would need to filter the responses, introducing effort on our end and higher network bandwidth.