Class: Usps::Imis::Query

Inherits:
Object
  • Object
show all
Includes:
Enumerable, Requests
Defined in:
lib/usps/imis/query.rb

Overview

API wrapper for IQA Queries

Constant Summary collapse

QUERY_PATH =

Endpoint for IQA query requests

'api/Query'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(api, query_name, query_params) ⇒ Query

A new instance of Query

Parameters:

  • api (Api) —

    Parent to use for making requests

  • query_name (String) —

    Full path of the query in IQA, e.g. $/_ABC/Fiander/iMIS_ID



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# File 'lib/usps/imis/query.rb', line 37

def initialize(api, query_name, query_params)
  @api = api
  @query_name = query_name
  @query_params = query_params
end

Instance Attribute Details

#api ⇒ Object (readonly)

The parent Api object



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# File 'lib/usps/imis/query.rb', line 17

def api
  @api
end

#offset ⇒ Object (readonly)

Current offset for paging through the Query



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# File 'lib/usps/imis/query.rb', line 29

def offset
  @offset
end

#query_name ⇒ Object (readonly)

Name of the Query to run



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# File 'lib/usps/imis/query.rb', line 21

def query_name
  @query_name
end

#query_params ⇒ Object (readonly)

Parameters for the Query



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# File 'lib/usps/imis/query.rb', line 25

def query_params
  @query_params
end

Instance Method Details

#each ⇒ Object

Iterate through all results from the query



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# File 'lib/usps/imis/query.rb', line 45

def each(&)
  Imis.logger.info 'Running IQA Query on iMIS'

  items = []
  find_each { items << it }
  items.each(&)
end

#find_each ⇒ Object

Iterate through all results from the query, fetching one page at a time



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# File 'lib/usps/imis/query.rb', line 55

def find_each(&)
  result = { 'HasNext' => true }
  count = 0

  while result['HasNext']
    Imis.logger.info 'Fetching IQA Query page'

    result = fetch

    count += result['Count'] || 0
    Imis.logger.info "  -> #{count} / #{result['TotalCount']} #{'item'.pluralize(count)}"
    Imis.logger.debug '  -> Query page data:'
    JSON.pretty_generate(result).split("\n").each { Imis.logger.debug "    -> #{it}" }

    items = result['Items']['$values'].map { it.except('$type') }
    @offset = result['NextOffset']

    items.each(&)
  end

  nil
end