Encode various Solr query types - Hui.query/0 into string.

Example - encoding keyword list

iex> alias Hui.Encoder

iex> Encoder.encode(q: "loch", start: 10, rows: 10, fq: ["type:image", "year:[2001 TO 2007]"])
"q=loch&start=10&rows=10&fq=type%3Aimage&fq=year%3A%5B2001+TO+2007%5D"

Example - encoding query structs

iex> alias Hui.Query.{DisMax,Highlight,Update}

iex> %DisMax{q: "loch", qf: "description^2.3 title", mm: "2<-25% 9<-3"} |> Encoder.encode
"mm=2%3C-25%25+9%3C-3&q=loch&qf=description%5E2.3+title"

iex> %Highlight{fl: "title,words", usePhraseHighlighter: true, fragsize: 250} |> Encoder.encode
"hl.fl=title%2Cwords&hl.fragsize=250&hl=true&hl.usePhraseHighlighter=true"

iex> %Query.Update{delete_id: ["tt1316540", "tt1650453"]} |> Encoder.encode          
"{"delete":{"id":"tt1316540"},"delete":{"id":"tt1650453"}}"

See Hui.Query.Facet, Hui.Query.FacetRange, Hui.Query.FacetInterval, Hui.Query.Update for more examples.

Encode various Solr query types - Hui.query/0 into IO data.

Examples

iex> Hui.Encoder.encode_to_iodata(q: "loch", facet: true, "facet.field": ["type", "year"])
[
  "q",
  61,
  "loch",
  38,
  [
    "facet",
    61,
    "true",
    38,
    ["facet.field", 61, "type", 38, ["facet.field", 61, "year"]]
  ]
]

iex> %Hui.Query.Update{delete_id: ["tt1316540", "tt1650453"]} |> Hui.Encoder.encode_to_iodata
[
  123,
  [
    [
      [
        34,
        "delete",
        34,
        58,
        [123, [[34, "id", 34], 58, [34, [[] | "tt1316540"], 34]], 125]
      ],
      44,
      [
        34,
        "delete",
        34,
        58,
        [123, [[34, "id", 34], 58, [34, [[] | "tt1650453"], 34]], 125]
      ]
    ]
  ],
  125
]

IO data encoding

encode_to_iodata/1 enables the built-in structs encoder to return IO data which can be sent directly to IO functions or over the socket, to leverage Erlang runtime and some HTTP client features for lower memory usage and increased performance.