Filter endpoint

[cw00dw0rd]

Adds separate route for 'filters' on amenities. Potential improvements:

• Expand to include more features such as price, bedrooms, etc..
• Considering combining with mapResults query and getting amenities for the map area results but this has caveats.

[cw00dw0rd]

Contains commits from #37 - merge that first.

[cw00dw0rd]

This relies on a new view definition you can restore the dump or recreate the view (see below): https://drive.google.com/drive/folders/1uomslIev0N2tyQ4-9UMCll9gNqgv4rng?usp=sharing

See #14 for more details on query changes.

Still needs effort put into the frontend to properly display the markers that match the results.

You can instead drop and recreate the view if you prefer, you can copy/paste the following to create the view.

db._createView("arangobnb", "arangosearch", {
  "writebufferIdle" : 64,
  "writebufferSizeMax" : 33554432,
  "consolidationPolicy" : {
    "type" : "tier",
    "segmentsBytesFloor" : 2097152,
    "segmentsBytesMax" : 5368709120,
    "segmentsMax" : 10,
    "segmentsMin" : 1,
    "minScore" : 0
  },
  "primarySort" : [
    {
      "field" : "number_of_reviews",
      "asc" : false
    },
    {
      "field" : "review_scores_rating",
      "asc" : false
    }
  ],
  "storedValues" : [ ],
  "writebufferActive" : 0,
  "consolidationIntervalMsec" : 1000,
  "cleanupIntervalStep" : 2,
  "commitIntervalMsec" : 1000,
  "links" : {
    "listings" : {
      "analyzers" : [
        "identity"
      ],
      "fields" : {
        "room_type" : {
        },
        "price" : {
        },
        "number_of_reviews" : {
          "analyzers" : [
            "text_en",
            "identity"
          ]
        },
        "neighborhood_cleansed" : {
        },
        "amenities" : {
          "analyzers" : [
            "text_en",
            "identity"
          ]
        },
        "host_id" : {
        },
        "review_scores_rating" : {
          "analyzers" : [
            "text_en",
            "identity"
          ]
        },
        "neighborhood" : {
          "analyzers" : [
            "text_en"
          ]
        },
        "description" : {
          "analyzers" : [
            "text_en"
          ]
        },
        "location" : {
          "analyzers" : [
            "geo"
          ]
        }
      },
      "includeAllFields" : false,
      "storeValues" : "none",
      "trackListPositions" : false
    }
  },
  "primarySortCompression" : "lz4"
})