Class: Katalyst::GoogleApis::Geocoding::ReverseService

Inherits:
Object
  • Object
show all
Defined in:
app/services/katalyst/google_apis/geocoding/reverse_service.rb

Overview

Use Google Maps Geocoding API to find a location from lat/lng.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(credentials:) ⇒ ReverseService

Returns a new instance of ReverseService.



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 20

def initialize(credentials:)
  @credentials = credentials
end

Instance Attribute Details

#error ⇒ Object (readonly)

Returns the value of attribute error.



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 10

def error
  @error
end

#response ⇒ Object (readonly)

Returns the value of attribute response.



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 10

def response
  @response
end

#result ⇒ Object (readonly)

Returns the value of attribute result.



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 10

def result
  @result
end

Class Method Details

.call(latlng:, credentials: Katalyst::GoogleApis.credentials(scope:)) ⇒ Object 



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 16

def self.call(latlng:, credentials: Katalyst::GoogleApis.credentials(scope:))
  new(credentials:).call(latlng:)
end

.scope ⇒ Object 



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 12

def self.scope
  "https://www.googleapis.com/auth/maps-platform.geocode.location"
end

Instance Method Details

#call(latlng:) ⇒ Object 



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 24

def call(latlng:)
  @latlng = latlng

  @response = Curl.get(url) do |http|
    http.headers["Content-Type"] = "application/json; UTF-8"
    @credentials.apply!(http.headers)
  end

  if %r{^application/json}.match?(@response.content_type)
    @result = JSON.parse(response.body, symbolize_names: true)
  else
    raise GoogleApis::Error.new(
      code:    response.response_code,
      status:  Rack::Utils::HTTP_STATUS_CODES[response.response_code],
      message: "Unexpected HTTP response received (#{response.response_code}, #{@response.content_type})",
    )
  end

  if result[:error].present?
    api_error = result.fetch(:error)

    raise GoogleApis::Error.new(
      code:    api_error.fetch(:code, response.response_code),
      status:  api_error.fetch(:status, Rack::Utils::HTTP_STATUS_CODES[response.response_code]),
      message: api_error.fetch(:message, "Unexpected API error"),
      details: api_error.fetch(:details, nil),
    )
  end

  self
rescue StandardError => e
  @error = e
  raise
ensure
  report_error
end

#first_location ⇒ Object 



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 65

def first_location
  locations&.first
end

#formatted_address ⇒ Object 



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 69

def formatted_address
  first_location&.dig(:formattedAddress)
end

#inspect ⇒ Object 



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 84

def inspect
  "#<#{self.class.name} result: #{@result.inspect} error: #{@error.inspect}>"
end

#latlng ⇒ Object 



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 73

def latlng
  location = first_location&.dig(:location)
  return if location.blank?

  latitude  = location[:latitude]
  longitude = location[:longitude]
  return if latitude.nil? || longitude.nil?

  [latitude, longitude].join(",")
end

#locations ⇒ Object 



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# File 'app/services/katalyst/google_apis/geocoding/reverse_service.rb', line 61

def locations
  @result&.fetch(:results, nil)
end