Add `type` as a filter argument on the `operations` endpoint

[kalepail]

{
  operations (
    first: 100
    type: "CreatePassiveSellOfferOperation"
  ) {
    nodes {
      type
    }
  }
}

Would be a very helpful endpoint for some research we're doing internally at SDF.

[charlie-wasp]

@tyvdh in fact, Astrograph already supports such filter. For your example it would look like:

{
  operations (
    first: 100
    type: createPassiveSellOffer
  ) {
    nodes {
      type
    }
  }
}

[kalepail]

I get

{
  "error": {
    "errors": [
      {
        "message": "Unknown argument \"type\" on field \"operations\" of type \"Query\".",
        "extensions": {
          "code": "GRAPHQL_VALIDATION_FAILED",
          "exception": {
            "stacktrace": [
              "GraphQLError: Unknown argument \"type\" on field \"operations\" of type \"Query\".",
              "    at Object.Argument (/var/www/astrograph/source/node_modules/graphql/validation/rules/KnownArgumentNames.js:60:29)",
              "    at Object.enter (/var/www/astrograph/source/node_modules/graphql/language/visitor.js:324:29)",
              "    at Object.enter (/var/www/astrograph/source/node_modules/graphql/language/visitor.js:375:25)",
              "    at visit (/var/www/astrograph/source/node_modules/graphql/language/visitor.js:242:26)",
              "    at Object.validate (/var/www/astrograph/source/node_modules/graphql/validation/validate.js:73:24)",
              "    at validate (/var/www/astrograph/source/node_modules/apollo-server-core/dist/requestPipeline.js:212:32)",
              "    at Object.<anonymous> (/var/www/astrograph/source/node_modules/apollo-server-core/dist/requestPipeline.js:125:42)",
              "    at Generator.next (<anonymous>)",
              "    at fulfilled (/var/www/astrograph/source/node_modules/apollo-server-core/dist/requestPipeline.js:5:58)",
              "    at process._tickCallback (internal/process/next_tick.js:68:7)"
            ]
          }
        }
      }
    ]
  }
}

When running that query

[kalepail]

Oddly enough it works on testnet, just not on https://demo.astrograph.io/graphql/

[charlie-wasp]

@tyvdh ah, yes, it works only on the testnet, because testnet instance uses ElasticSearch storage, so we can filter operations on our side. Pubnet instance relies on the Horizon, so we're limited by its filtering features

[kalepail]

ETA on when pubnet will be moved to ES? Having testnet mismatched from pubnet greatly reduces the usefulness of this service. :/