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=begin
{{> api_info}}
=end
require 'date'
require 'json'
require 'logger'
require 'tempfile'
require 'typhoeus'
require 'uri'
module {{moduleName}}
class ApiClient
# The Configuration object holding settings to be used in the API client.
attr_accessor :config
# Defines the headers to be used in HTTP requests of all API calls by default.
#
# @return [Hash]
attr_accessor :default_headers
# Initializes the ApiClient
# @option config [Configuration] Configuration for initializing the object, default to Configuration.default
def initialize(config = Configuration.default)
@config = config
@user_agent = "{{#httpUserAgent}}{{{.}}}{{/httpUserAgent}}{{^httpUserAgent}}Swagger-Codegen/#{VERSION}/ruby{{/httpUserAgent}}"
@default_headers = {
'Content-Type' => 'application/json',
'User-Agent' => @user_agent
}
end
def self.default
@@default ||= ApiClient.new
end
# Call an API with given options.
#
# @return [Array<(Object, Integer, Hash)>] an array of 3 elements:
# the data deserialized from response body (could be nil), response status code and response headers.
def call_api(http_method, path, opts = {})
request = build_request(http_method, path, opts)
response = request.run
if @config.debugging
@config.logger.debug "HTTP response body ~BEGIN~\n#{response.body}\n~END~\n"
end
unless response.success?
if response.timed_out?
fail ApiError.new('Connection timed out')
elsif response.code == 0
# Errors from libcurl will be made visible here
fail ApiError.new(:code => 0,
:message => response.return_message)
else
fail ApiError.new(:code => response.code,
:response_headers => response.headers,
:response_body => response.body),
response.status_message
end
end
if opts[:return_type]
data = deserialize(response, opts[:return_type])
else
data = nil
end
return data, response.code, response.headers
end
# Builds the HTTP request
#
# @param [String] http_method HTTP method/verb (e.g. POST)
# @param [String] path URL path (e.g. /account/new)
# @option opts [Hash] :header_params Header parameters
# @option opts [Hash] :query_params Query parameters
# @option opts [Hash] :form_params Query parameters
# @option opts [Object] :body HTTP body (JSON/XML)
# @return [Typhoeus::Request] A Typhoeus Request
def build_request(http_method, path, opts = {})
url = build_request_url(path)
http_method = http_method.to_sym.downcase
header_params = @default_headers.merge(opts[:header_params] || {})
query_params = opts[:query_params] || {}
form_params = opts[:form_params] || {}
{{#hasAuthMethods}}
update_params_for_auth! header_params, query_params, opts[:auth_names]
{{/hasAuthMethods}}
# set ssl_verifyhosts option based on @config.verify_ssl_host (true/false)
_verify_ssl_host = @config.verify_ssl_host ? 2 : 0
req_opts = {
:method => http_method,
:headers => header_params,
:params => query_params,
:params_encoding => @config.params_encoding,
:timeout => @config.timeout,
:ssl_verifypeer => @config.verify_ssl,
:ssl_verifyhost => _verify_ssl_host,
:sslcert => @config.cert_file,
:sslkey => @config.key_file,
:verbose => @config.debugging
}
# set custom cert, if provided
req_opts[:cainfo] = @config.ssl_ca_cert if @config.ssl_ca_cert
if [:post, :patch, :put, :delete].include?(http_method)
req_body = build_request_body(header_params, form_params, opts[:body])
req_opts.update :body => req_body
if @config.debugging
@config.logger.debug "HTTP request body param ~BEGIN~\n#{req_body}\n~END~\n"
end
end
request = Typhoeus::Request.new(url, req_opts)
download_file(request) if opts[:return_type] == 'File'
request
end
# Builds the HTTP request body
#
# @param [Hash] header_params Header parameters
# @param [Hash] form_params Query parameters
# @param [Object] body HTTP body (JSON/XML)
# @return [String] HTTP body data in the form of string
def build_request_body(header_params, form_params, body)
# http form
if header_params['Content-Type'] == 'application/x-www-form-urlencoded' ||
header_params['Content-Type'] == 'multipart/form-data'
data = {}
form_params.each do |key, value|
case value
when ::File, ::Array, nil
# let typhoeus handle File, Array and nil parameters
data[key] = value
else
data[key] = value.to_s
end
end
elsif body
data = body.is_a?(String) ? body : body.to_json
else
data = nil
end
data
end
# Check if the given MIME is a JSON MIME.
# JSON MIME examples:
# application/json
# application/json; charset=UTF8
# APPLICATION/JSON
# */*
# @param [String] mime MIME
# @return [Boolean] True if the MIME is application/json
def json_mime?(mime)
(mime == '*/*') || !(mime =~ /Application\/.*json(?!p)(;.*)?/i).nil?
end
# Deserialize the response to the given return type.
#
# @param [Response] response HTTP response
# @param [String] return_type some examples: "User", "Array", "Hash"
def deserialize(response, return_type)
body = response.body
# handle file downloading - return the File instance processed in request callbacks
# note that response body is empty when the file is written in chunks in request on_body callback
return @tempfile if return_type == 'File'
return nil if body.nil? || body.empty?
# return response body directly for String return type
return body if return_type == 'String'
# ensuring a default content type
content_type = response.headers['Content-Type'] || 'application/json'
fail "Content-Type is not supported: #{content_type}" unless json_mime?(content_type)
begin
data = JSON.parse("[#{body}]", :symbolize_names => true)[0]
rescue JSON::ParserError => e
if %w(String Date DateTime).include?(return_type)
data = body
else
raise e
end
end
convert_to_type data, return_type
end
# Convert data to the given return type.
# @param [Object] data Data to be converted
# @param [String] return_type Return type
# @return [Mixed] Data in a particular type
def convert_to_type(data, return_type)
return nil if data.nil?
case return_type
when 'String'
data.to_s
when 'Integer'
data.to_i
when 'Float'
data.to_f
when 'Boolean'
data == true
when 'DateTime'
# parse date time (expecting ISO 8601 format)
DateTime.parse data
when 'Date'
# parse date time (expecting ISO 8601 format)
Date.parse data
when 'Object'
# generic object (usually a Hash), return directly
data
when /\AArray<(.+)>\z/
# e.g. Array
sub_type = $1
data.map { |item| convert_to_type(item, sub_type) }
when /\AHash\\z/
# e.g. Hash
sub_type = $1
{}.tap do |hash|
data.each { |k, v| hash[k] = convert_to_type(v, sub_type) }
end
else
# models, e.g. Pet
{{moduleName}}.const_get(return_type).build_from_hash(data)
end
end
# Save response body into a file in (the defined) temporary folder, using the filename
# from the "Content-Disposition" header if provided, otherwise a random filename.
# The response body is written to the file in chunks in order to handle files which
# size is larger than maximum Ruby String or even larger than the maximum memory a Ruby
# process can use.
#
# @see Configuration#temp_folder_path
def download_file(request)
tempfile = nil
encoding = nil
request.on_headers do |response|
content_disposition = response.headers['Content-Disposition']
if content_disposition && content_disposition =~ /filename=/i
filename = content_disposition[/filename=['"]?([^'"\s]+)['"]?/, 1]
prefix = sanitize_filename(filename)
else
prefix = 'download-'
end
prefix = prefix + '-' unless prefix.end_with?('-')
encoding = response.body.encoding
tempfile = Tempfile.open(prefix, @config.temp_folder_path, encoding: encoding)
@tempfile = tempfile
end
request.on_body do |chunk|
chunk.force_encoding(encoding)
tempfile.write(chunk)
end
request.on_complete do |response|
if tempfile
tempfile.close
@config.logger.info "Temp file written to #{tempfile.path}, please copy the file to a proper folder "\
"with e.g. `FileUtils.cp(tempfile.path, '/new/file/path')` otherwise the temp file "\
"will be deleted automatically with GC. It's also recommended to delete the temp file "\
"explicitly with `tempfile.delete`"
end
end
end
# Sanitize filename by removing path.
# e.g. ../../sun.gif becomes sun.gif
#
# @param [String] filename the filename to be sanitized
# @return [String] the sanitized filename
def sanitize_filename(filename)
filename.gsub(/.*[\/\\]/, '')
end
def build_request_url(path)
# Add leading and trailing slashes to path
path = "/#{path}".gsub(/\/+/, '/')
@config.base_url + path
end
# Update hearder and query params based on authentication settings.
#
# @param [Hash] header_params Header parameters
# @param [Hash] query_params Query parameters
# @param [String] auth_names Authentication scheme name
def update_params_for_auth!(header_params, query_params, auth_names)
Array(auth_names).each do |auth_name|
auth_setting = @config.auth_settings[auth_name]
next unless auth_setting
case auth_setting[:in]
when 'header' then header_params[auth_setting[:key]] = auth_setting[:value]
when 'query' then query_params[auth_setting[:key]] = auth_setting[:value]
else fail ArgumentError, 'Authentication token must be in `query` of `header`'
end
end
end
# Sets user agent in HTTP header
#
# @param [String] user_agent User agent (e.g. swagger-codegen/ruby/1.0.0)
def user_agent=(user_agent)
@user_agent = user_agent
@default_headers['User-Agent'] = @user_agent
end
# Return Accept header based on an array of accepts provided.
# @param [Array] accepts array for Accept
# @return [String] the Accept header (e.g. application/json)
def select_header_accept(accepts)
return nil if accepts.nil? || accepts.empty?
# use JSON when present, otherwise use all of the provided
json_accept = accepts.find { |s| json_mime?(s) }
json_accept || accepts.join(',')
end
# Return Content-Type header based on an array of content types provided.
# @param [Array] content_types array for Content-Type
# @return [String] the Content-Type header (e.g. application/json)
def select_header_content_type(content_types)
# use application/json by default
return 'application/json' if content_types.nil? || content_types.empty?
# use JSON when present, otherwise use the first one
json_content_type = content_types.find { |s| json_mime?(s) }
json_content_type || content_types.first
end
# Convert object (array, hash, object, etc) to JSON string.
# @param [Object] model object to be converted into JSON string
# @return [String] JSON string representation of the object
def object_to_http_body(model)
return model if model.nil? || model.is_a?(String)
local_body = nil
if model.is_a?(Array)
local_body = model.map { |m| object_to_hash(m) }
else
local_body = object_to_hash(model)
end
local_body.to_json
end
# Convert object(non-array) to hash.
# @param [Object] obj object to be converted into JSON string
# @return [String] JSON string representation of the object
def object_to_hash(obj)
if obj.respond_to?(:to_hash)
obj.to_hash
else
obj
end
end
# Build parameter value according to the given collection format.
# @param [String] collection_format one of :csv, :ssv, :tsv, :pipes and :multi
def build_collection_param(param, collection_format)
case collection_format
when :csv
param.join(',')
when :ssv
param.join(' ')
when :tsv
param.join("\t")
when :pipes
param.join('|')
when :multi
# return the array directly as typhoeus will handle it as expected
param
else
fail "unknown collection format: #{collection_format.inspect}"
end
end
end
end
