Class: RESO::API::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/reso_api/app/models/reso/api/client.rb

Constant Summary collapse

RESOURCE_KEYS = 
{
  media: "MediaKey",
  members: "MemberKey",
  offices: "OfficeKey",
  properties: "ListingKey"
}
DETAIL_ENDPOINTS = 
{
  medium: "/Media",
  member: "/Member",
  office: "/Office",
  property: "/Property"
}
FILTERABLE_ENDPOINTS = 
{
  media: "/Media",
  members: "/Member",
  offices: "/Office",
  properties: "/Property"
}
PASSTHROUGH_ENDPOINTS = 
{
  metadata: "/$metadata"
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**opts) ⇒ Client

Returns a new instance of Client.



12
13
14
15
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 12

def initialize(**opts)
  @client_id, @client_secret, @auth_url, @base_url = opts.values_at(:client_id, :client_secret, :auth_url, :base_url)
  validate!
end

Instance Attribute Details

#auth_url ⇒ Object

Returns the value of attribute auth_url.



10
11
12
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 10

def auth_url
  @auth_url
end

#base_url ⇒ Object

Returns the value of attribute base_url.



10
11
12
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 10

def base_url
  @base_url
end

#client_id ⇒ Object

Returns the value of attribute client_id.



10
11
12
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 10

def client_id
  @client_id
end

#client_secret ⇒ Object

Returns the value of attribute client_secret.



10
11
12
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 10

def client_secret
  @client_secret
end

Instance Method Details

#fresh_oauth2_payload ⇒ Object 



122
123
124
125
126
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 122

def fresh_oauth2_payload
  @oauth2_payload = oauth2_client.client_credentials.get_token('client_id' => client_id, 'client_secret' => client_secret)
  File.write(oauth2_token_path, @oauth2_payload.to_hash.to_json)
  return @oauth2_payload
end

#get_oauth2_payload ⇒ Object 



136
137
138
139
140
141
142
143
144
145
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 136

def get_oauth2_payload
  if File.exist?(oauth2_token_path)
    persisted = File.read(oauth2_token_path)
    payload = OAuth2::AccessToken.from_hash(oauth2_client, JSON.parse(persisted))
  else
    payload = oauth2_client.client_credentials.get_token('client_id' => client_id, 'client_secret' => client_secret)
    File.write(oauth2_token_path, payload.to_hash.to_json)
  end
  return payload
end

#oauth2_client ⇒ Object 



99
100
101
102
103
104
105
106
107
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 99

def oauth2_client
  OAuth2::Client.new(
    client_id,
    client_secret,
    token_url: auth_url,
    scope: "api",
    grant_type: "client_credentials"
  )
end

#oauth2_payload ⇒ Object 



132
133
134
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 132

def oauth2_payload
  @oauth2_payload ||= get_oauth2_payload
end

#oauth2_token ⇒ Object 



109
110
111
112
113
114
115
116
117
118
119
120
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 109

def oauth2_token
  payload = oauth2_payload
  token = JWT.decode(payload.token, nil, false)
  exp_timestamp = Hash(token.try(:first))["exp"].to_s
  expiration = DateTime.strptime(exp_timestamp, '%s').utc rescue DateTime.now.utc
  if expiration > DateTime.now.utc
    return payload.token
  else
    @oauth2_payload = fresh_oauth2_payload
    return @oauth2_payload.token
  end
end

#oauth2_token_path ⇒ Object 



128
129
130
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 128

def oauth2_token_path
  File.join(Dir.tmpdir, [base_url.parameterize, "-oauth-token.json"].join)
end

#perform_call(endpoint, params) ⇒ Object 



151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 151

def perform_call(endpoint, params)
  uri = uri_for_endpoint(endpoint)
  retries = 0
  if params.present?
    query = params.present? ? URI.encode_www_form(params).gsub("+", " ") : ""
    uri.query && uri.query.length > 0 ? uri.query += '&' + query : uri.query = query
    return URI::decode(uri.request_uri) if params.dig(:$debug).present?
  end
  begin
    req = Net::HTTP::Get.new(uri.request_uri)
    req['Authorization'] = "Bearer #{oauth2_token}"
    res = Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.scheme == 'https') do |http|
      http.request(req)
    end
    response = JSON(res.body) rescue res.body
    if response.is_a?(String) && response.include?('Bad Gateway')
      puts "Error: Bad Gateway."
      raise StandardError
    elsif response.is_a?(String) && response.include?('Unauthorized')
      puts "Error: Unauthorized."
      fresh_oauth2_payload
      raise StandardError
    elsif response.is_a?(Hash) && response.has_key?("error")
      puts "Error."
      raise StandardError
    elsif response.is_a?(Hash) && response.has_key?("retry-after")
      puts "Error: Retrying in #{response["retry-after"].to_i}} seconds."
      sleep response["retry-after"].to_i
      raise StandardError
    end
  rescue Net::ReadTimeout, StandardError
    if (retries += 1) <= 5
      sleep 10
      retry
    else
      raise
    end
  end
  return response
end

#uri_for_endpoint(endpoint) ⇒ Object 



147
148
149
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 147

def uri_for_endpoint endpoint
  return URI(endpoint).host ? URI(endpoint) : URI([base_url, endpoint].join)
end

#validate! ⇒ Object 



17
18
19
20
21
22
 
# File 'lib/reso_api/app/models/reso/api/client.rb', line 17

def validate!
  raise 'Missing Client ID `client_id`' if client_id.nil?
  raise 'Missing Client Secret `client_secret`' if client_secret.nil?
  raise 'Missing Authentication URL `auth_url`' if auth_url.nil?
  raise 'Missing API Base URL `base_url`' if base_url.nil?
end