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51 lines
1.0 KiB
51 lines
1.0 KiB
2 years ago
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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")
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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 = 10 # 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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}
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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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