Class: Idlc::AWSRestClient

Inherits:
Object
  • Object
show all
Includes:
Helpers
Defined in:
lib/idlc-sdk-core/restclient.rb

Instance Method Summary collapse

Methods included from Helpers

debug, err, msg, stderr, stdout, system_command

Constructor Details

#initialize(credentials = { access_key_id: ENV['AWS_ACCESS_KEY_ID'], secret_access_key: ENV['AWS_SECRET_ACCESS_KEY'], session_token: ENV['AWS_SESSION_TOKEN'] }, region = ) ⇒ AWSRestClient

Returns a new instance of AWSRestClient.



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# File 'lib/idlc-sdk-core/restclient.rb', line 58

def initialize(credentials=  {
      access_key_id: ENV['AWS_ACCESS_KEY_ID'],
      secret_access_key: ENV['AWS_SECRET_ACCESS_KEY'],
      session_token: ENV['AWS_SESSION_TOKEN']
    },
    region=ENV['AWS_REGION']
  )
  @service_name = 'execute-api'
  @credentials = credentials
  @region = region
  @backend_services = Idlc::SERVICES[region]
end

Instance Method Details

#fetch(request) ⇒ Object 



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# File 'lib/idlc-sdk-core/restclient.rb', line 71

def fetch(request)
  request = JSON.parse(request)

  endpoint = 'https://' + @backend_services[request['service']]['endpoint'] + '/' + @backend_services[request['service']]['stage']

  body = ''
  body = request['body'].to_json if request['body']

  retries = 0
  max_retries = 5
  sleep_time = 5
  exp_backoff = 2
  result = nil

  loop do
    begin
      resp = send_signed_request(
        request['method'],
        "#{endpoint.strip}#{request['path']}",
        body
      )

      result = JSON.parse(resp.body)
      message = "status: #{resp.code}, response: #{result}"
      raise message unless resp.code == '200'
      break
    rescue Exception => e
      break if retries >= max_retries
      retries += 1
      msg("RequestFailed: #{e} - Waiting #{sleep_time}s then retrying... (#{retries} of #{max_retries})")


      sleep sleep_time
      sleep_time *= exp_backoff # use an exponential backoff when retrying requests
    end
  end

  # if request has 'outfile' param, write response body to file
  to_file(result, request['outfile']) if request['outfile']

  # return response body obj
  result
end

#to_file(obj, filename) ⇒ Object 



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# File 'lib/idlc-sdk-core/restclient.rb', line 115

def to_file(obj, filename)
  File.open(filename, 'w') do |f|
    f.write(obj.to_json)
  end
end