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51 lines
1.1 KiB
51 lines
1.1 KiB
require "net/http" |
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class UprnClient |
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attr_reader :uprn |
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attr_accessor :error |
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ADDRESS = "api.os.uk".freeze |
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PATH = "/search/places/v1/uprn".freeze |
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def initialize(uprn) |
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@uprn = uprn |
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end |
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def call |
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unless response.is_a?(Net::HTTPSuccess) && result.present? |
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@error = "UPRN is not recognised. Check the number, or enter the address." |
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end |
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rescue JSON::ParserError |
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@error = "UPRN is not recognised. Check the number, or enter the address." |
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end |
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def result |
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@result ||= JSON.parse(response.body).dig("results", 0, "DPA") || JSON.parse(response.body).dig("results", 0, "LPI") |
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end |
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private |
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def http_client |
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client = Net::HTTP.new(ADDRESS, 443) |
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client.use_ssl = true |
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client.verify_mode = OpenSSL::SSL::VERIFY_PEER |
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client.max_retries = 3 |
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client.read_timeout = 30 # seconds |
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client |
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end |
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def endpoint_uri |
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uri = URI(PATH) |
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params = { |
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uprn:, |
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key: ENV["OS_DATA_KEY"], |
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dataset: %w[DPA LPI].join(","), |
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} |
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uri.query = URI.encode_www_form(params) |
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uri.to_s |
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end |
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def response |
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@response ||= http_client.request_get(endpoint_uri) |
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end |
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end
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