Class: CoreLibrary::ApiHelper

Inherits:
Object
  • Object
show all
Defined in:
lib/apimatic-core/utilities/api_helper.rb

Overview

API utility class involved in executing an API

Class Method Summary collapse

Class Method Details

.append_url_with_query_parameters(query_builder, parameters, array_serialization = ArraySerializationFormat::INDEXED) ⇒ Object

Appends the given set of parameters to the given query string.

Parameters:

  • query_builder (String) —

    The query string builder to add the query parameters to.

  • parameters (Hash) —

    The parameters to append.

  • array_serialization (String) (defaults to: ArraySerializationFormat::INDEXED) —

    The serialization format



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 168

def self.append_url_with_query_parameters(query_builder, parameters,
                                          array_serialization = ArraySerializationFormat::INDEXED)
  # Perform parameter validation.
  unless query_builder.instance_of? String
    raise ArgumentError, 'Given value for parameter \"query_builder\"
      is invalid.'
  end

  # Return if there are no parameters to replace.
  return query_builder if parameters.nil?

  parameters = process_complex_types_parameters(parameters, array_serialization)

  parameters.each do |key, value|
    seperator = query_builder.include?('?') ? '&' : '?'
    unless value.nil?
      if value.instance_of? Array
        value.compact!
        serialize_array(
          key, value, formatting: array_serialization
        ).each do |element|
          seperator = query_builder.include?('?') ? '&' : '?'
          query_builder += "#{seperator}#{element[0]}=#{element[1]}"
        end
      else
        query_builder += "#{seperator}#{key}=#{CGI.escape(value.to_s)}"
      end
    end
  end
  query_builder
end

.append_url_with_template_parameters(query_builder, parameters) ⇒ Object

Replaces template parameters in the given url. parameters.

Parameters:

  • query_builder (String) —

    The query string builder to replace the template

  • parameters (Hash) —

    The parameters to replace in the url.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 92

def self.append_url_with_template_parameters(query_builder, parameters)
  # perform parameter validation
  unless query_builder.instance_of? String
    raise ArgumentError, 'Given value for parameter \"query_builder\" is
      invalid.'
  end

  # Return if there are no parameters to replace.
  return query_builder if parameters.nil?

  parameters.each do |key, val|
    if val.nil?
      replace_value = ''
    elsif val['value'].instance_of? Array
      if val['encode'] == true
        val['value'].map! { |element| CGI.escape(element.to_s) }
      else
        val['value'].map!(&:to_s)
      end
      replace_value = val['value'].join('/')
    else
      replace_value = if val['encode'] == true
                        CGI.escape(val['value'].to_s)
                      else
                        val['value'].to_s
                      end
    end

    # Find the template parameter and replace it with its value.
    query_builder = query_builder.gsub("{#{key}}", replace_value)
  end
  query_builder
end

.apply_primitive_type_parser(value) ⇒ Integer, ...

Applies a primitive type parser to deserialize a value.

Parameters:

  • value (String) —

    The value to be parsed.

Returns:

  • (Integer, Float, Boolean, String) —

    The deserialized value, which can be an Integer, Float, Boolean, or String.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 246

def self.apply_primitive_type_parser(value)
  # Attempt to deserialize as Integer
  return value.to_i if value.match?(/^\d+$/)

  # Attempt to deserialize as Float
  return value.to_f if value.match?(/^\d+(\.\d+)?$/)

  # Attempt to deserialize as Boolean
  return true if value.downcase == 'true'
  return false if value.downcase == 'false'

  # Default: return the original string
  value
end

.apply_unboxing_function(obj, unboxing_function, is_array: false, is_dict: false, is_array_of_map: false, is_map_of_array: false, dimension_count: 1) ⇒ Object 



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 478

def self.apply_unboxing_function(obj, unboxing_function, is_array: false, is_dict: false, is_array_of_map: false,
                                 is_map_of_array: false, dimension_count: 1)
  if is_dict
    if is_map_of_array
      # Handle case where the object is a map of arrays (Hash with array values)
      obj.transform_values do |v|
        apply_unboxing_function(v, unboxing_function, is_array: true, dimension_count: dimension_count)
      end
    else
      # Handle regular Hash (map) case
      obj.transform_values { |v| unboxing_function.call(v) }
    end
  elsif is_array
    if is_array_of_map
      # Handle case where the object is an array of maps (Array of Hashes)
      obj.map do |element|
        apply_unboxing_function(element, unboxing_function, is_dict: true, dimension_count: dimension_count)
      end
    elsif dimension_count > 1
      # Handle multi-dimensional array
      obj.map do |element|
        apply_unboxing_function(element, unboxing_function, is_array: true,
                                                            dimension_count: dimension_count - 1)
      end
    else
      # Handle regular Array case
      obj.map { |element| unboxing_function.call(element) }
    end
  else
    # Handle base case where the object is neither Array nor Hash
    unboxing_function.call(obj)
  end
end

.clean_hash(hash) ⇒ Object

Removes elements with empty values from a hash.

Parameters:

  • hash (Hash) —

    The hash to clean.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 312

def self.clean_hash(hash)
  hash.delete_if { |_key, value| value.to_s.strip.empty? }
end

.clean_url(url) ⇒ String

Validates and processes the given Url.

Parameters:

  • url (String) —

    The given Url to process.

Returns:

  • (String) —

    Pre-processed Url as string.

Raises:

  • (ArgumentError) 


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# File 'lib/apimatic-core/utilities/api_helper.rb', line 203

def self.clean_url(url)
  # Perform parameter validation.
  raise ArgumentError, 'Invalid Url.' unless url.instance_of? String

  # Ensure that the urls are absolute.
  matches = url.match(%r{^(https?://[^/]+)})
  raise ArgumentError, 'Invalid Url format.' if matches.nil?

  # Get the http protocol match.
  protocol = matches[1]

  # Check if parameters exist.
  index = url.index('?')

  # Remove redundant forward slashes.
  query = url[protocol.length...(!index.nil? ? index : url.length)]
  query.gsub!(%r{//+}, '/')

  # Get the parameters.
  parameters = !index.nil? ? url[url.index('?')...url.length] : ''

  # Return processed url.
  protocol + query + parameters
end

.custom_merge(a, b) ⇒ Object 



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 340

def self.custom_merge(a, b)
  x = {}
  a.each do |key, value_a|
    b.each do |k, value_b|
      next unless key == k

      x[k] = []
      if value_a.instance_of? Array
        value_a.each do |v|
          x[k].push(v)
        end
      else
        x[k].push(value_a)
      end
      if value_b.instance_of? Array
        value_b.each do |v|
          x[k].push(v)
        end
      else
        x[k].push(value_b)
      end
      a.delete(k)
      b.delete(k)
    end
  end
  x.merge!(a)
  x.merge!(b)
  x
end

.custom_type_deserializer(response, deserialize_into, is_array, should_symbolize) ⇒ Object

Deserializes response to a known custom model type.

Parameters:

  • response —

    The response received.

  • deserialize_into —

    The custom model type to deserialize into.

  • is_array —

    Is the response provided an array or not



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 81

def self.custom_type_deserializer(response, deserialize_into, is_array, should_symbolize)
  decoded = json_deserialize(response, should_symbolize)
  return deserialize_into.call(decoded) unless is_array

  decoded.map { |element| deserialize_into.call(element) }
end

.data_types ⇒ Object

Array of supported data types



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 529

def self.data_types
  [String, Float, Integer,
   TrueClass, FalseClass, Date,
   DateTime, Array, Hash, Object]
end

.date_deserializer(response, is_array, should_symbolize) ⇒ Object

Deserializes date.

Parameters:

  • response —

    The response received.

  • is_array —

    Is the response provided an array or not



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 63

def self.date_deserializer(response, is_array, should_symbolize)
  if is_array
    decoded = json_deserialize(response, should_symbolize)
    return decoded.map { |element| Date.iso8601(element) }
  end
  Date.iso8601(response)
end

.deserialize_datetime(response, datetime_format, is_array, should_symbolize) ⇒ Object

Deserializes datetime.

Parameters:

  • response —

    The response received.

  • datetime_format —

    Current format of datetime.

  • is_array —

    Is the response provided an array or not



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 41

def self.deserialize_datetime(response, datetime_format, is_array, should_symbolize)
  decoded = json_deserialize(response, should_symbolize) if is_array

  case datetime_format
  when DateTimeFormat::HTTP_DATE_TIME
    return DateTimeHelper.from_rfc1123(response) unless is_array

    decoded.map { |element| DateTimeHelper.from_rfc1123(element) }
  when DateTimeFormat::RFC3339_DATE_TIME
    return DateTimeHelper.from_rfc3339(response) unless is_array

    decoded.map { |element| DateTimeHelper.from_rfc3339(element) }
  when DateTimeFormat::UNIX_DATE_TIME
    return DateTimeHelper.from_unix(response) unless is_array

    decoded.map { |element| DateTimeHelper.from_unix(element) }
  end
end

.deserialize_primitive_types(response, type, is_array, should_symbolize) ⇒ Object

Deserializes primitive types like Boolean, String etc.

Parameters:

  • response —

    The response received.

  • type —

    Type to be deserialized.

  • is_array —

    Is the response provided an array or not

Raises:

  • (ArgumentError) 


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# File 'lib/apimatic-core/utilities/api_helper.rb', line 30

def self.deserialize_primitive_types(response, type, is_array, should_symbolize)
  return json_deserialize(response, should_symbolize) if is_array
  raise ArgumentError, 'callable has not been not provided for deserializer.' if type.nil?

  type.call(response)
end

.deserialize_union_type(union_type, response, should_symbolize = false, should_deserialize = false) ⇒ Object

Deserialize the response based on the provided union_type.

Parameters:

  • union_type (UnionType) —

    The union type to validate and deserialize the response.

  • response (Object) —

    The response object to be deserialized.

  • should_deserialize (Boolean) (defaults to: false) —

    Flag indicating whether the response should be deserialized. Default is true.

Returns:

  • (Object) —

    The deserialized response based on the union_type.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 234

def self.deserialize_union_type(union_type, response, should_symbolize = false, should_deserialize = false)
  response = ApiHelper.json_deserialize(response, false, true) if should_deserialize

  union_type_result = union_type.validate(response)

  union_type_result.deserialize(response, should_symbolize: should_symbolize)
end

.dynamic_deserializer(response, should_symbolize) ⇒ Object

Deserializer to use when the type of response is not known beforehand.

Parameters:

  • response —

    The response received.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 73

def self.dynamic_deserializer(response, should_symbolize)
  json_deserialize(response, should_symbolize) unless response.nil? || response.to_s.strip.empty?
end

.form_encode(obj, instance_name, formatting: ArraySerializationFormat::INDEXED) ⇒ Hash

Form encodes an object. of a hash.

Parameters:

  • obj (Dynamic) —

    An object to form encode.

  • instance_name (String) —

    The name of the object.

Returns:

  • (Hash) —

    A form encoded representation of the object in the form



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 375

def self.form_encode(obj, instance_name, formatting: ArraySerializationFormat::INDEXED)
  retval = {}

  # If this is a structure, resolve it's field names.
  obj = obj.to_hash if obj.is_a? BaseModel

  # Create a form encoded hash for this object.
  if obj.nil?
    nil
  elsif obj.instance_of? Array
    if formatting == ArraySerializationFormat::INDEXED
      obj.each_with_index do |value, index|
        retval.merge!(form_encode(value, "#{instance_name}[#{index}]"))
      end
    elsif serializable_types.map { |x| obj[0].is_a? x }.any?
      obj.each do |value|
        abc = if formatting == ArraySerializationFormat::UN_INDEXED
                form_encode(value, "#{instance_name}[]",
                            formatting: formatting)
              else
                form_encode(value, instance_name,
                            formatting: formatting)
              end
        retval = custom_merge(retval, abc)
      end
    else
      obj.each_with_index do |value, index|
        retval.merge!(form_encode(value, "#{instance_name}[#{index}]",
                                  formatting: formatting))
      end
    end
  elsif obj.instance_of? Hash
    obj.each do |key, value|
      retval.merge!(form_encode(value, "#{instance_name}[#{key}]",
                                formatting: formatting))
    end
  elsif obj.instance_of? File
    retval[instance_name] = UploadIO.new(
      obj, 'application/octet-stream', File.basename(obj.path)
    )
  else
    retval[instance_name] = obj
  end
  retval
end

.form_encode_parameters(form_parameters, array_serialization) ⇒ Hash

Form encodes a hash of parameters.

Parameters:

  • form_parameters (Hash) —

    The hash of parameters to encode.

Returns:

  • (Hash) —

    A hash with the same parameters form encoded.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 319

def self.form_encode_parameters(form_parameters, array_serialization)
  encoded = {}
  form_parameters.each do |key, value|
    encoded.merge!(form_encode(value, key, formatting:
      array_serialization))
  end
  encoded
end

.get_additional_properties(hash, unboxing_function, is_array: false, is_dict: false, is_array_of_map: false, is_map_of_array: false, dimension_count: 1) ⇒ Hash

Apply unboxing_function to additional properties from hash.

Parameters:

  • hash (Hash) —

    The hash to extract additional properties from.

  • unboxing_function (Proc) —

    The deserializer to apply to each item in the hash.

Returns:

  • (Hash) —

    A hash containing the additional properties and their values.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 449

def self.get_additional_properties(hash, unboxing_function, is_array: false, is_dict: false, is_array_of_map: false,
                                   is_map_of_array: false, dimension_count: 1)
  additional_properties = {}

  # Iterate over each key-value pair in the input hash
  hash.each do |key, value|
    # Prepare arguments for apply_unboxing_function
    args = {
      is_array: is_array,
      is_dict: is_dict,
      is_array_of_map: is_array_of_map,
      is_map_of_array: is_map_of_array,
      dimension_count: dimension_count
    }

    # If the value is a complex structure (Hash or Array), apply apply_unboxing_function
    additional_properties[key] = if is_array || is_dict
                                   apply_unboxing_function(value, unboxing_function, **args)
                                 else
                                   # Apply the unboxing function directly for simple values
                                   unboxing_function.call(value)
                                 end
  rescue StandardError
    # Ignore the exception and continue processing
  end

  additional_properties
end

.get_content_type(value) ⇒ Object

Get content-type depending on the value

Parameters:

  • value (Object) —

    The value for which the content-type is resolved.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 514

def self.get_content_type(value)
  if serializable_types.map { |x| value.is_a? x }.any?
    'text/plain; charset=utf-8'
  else
    'application/json; charset=utf-8'
  end
end

.json_deserialize(json, should_symbolize = false, allow_primitive_type_parsing = false) ⇒ Hash, ...

Parses a JSON string.

Parameters:

  • json (String) —

    A JSON string.

  • should_symbolize (Boolean) (defaults to: false) —

    Determines whether the keys should be symbolized. If set to true, the keys will be converted to symbols. Defaults to false.

  • allow_primitive_type_parsing (Boolean) (defaults to: false) —

    Determines whether to allow parsing of primitive types. If set to true, the method will attempt to parse primitive types like numbers and booleans. Defaults to false.

Returns:

  • (Hash, Array, nil) —

    The parsed JSON object, or nil if the input string is nil.

Raises:

  • (TypeError) —

    if the server responds with invalid JSON and primitive type parsing is not allowed.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 292

def self.json_deserialize(json, should_symbolize = false, allow_primitive_type_parsing = false)
  return if json.nil? || json.to_s.strip.empty?

  begin
    JSON.parse(json, symbolize_names: should_symbolize)
  rescue StandardError
    raise TypeError, 'Server responded with invalid JSON.' unless allow_primitive_type_parsing

    ApiHelper.apply_primitive_type_parser(json)
  end
end

.json_serialize(obj) ⇒ Object

Parses JSON string.

Parameters:

  • obj (object) —

    The object to serialize.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 306

def self.json_serialize(obj)
  serializable_types.map { |x| obj.is_a? x }.any? ? obj.to_s : obj.to_json
end

.map_response(obj, keys) ⇒ Object

Retrieves a field from a Hash/Array based on an Array of keys/indexes

Parameters:

  • obj (Hash, Array) —

    The hash to extract data from

  • keys (Array<String, Integer>) —

    The keys/indexes to use

Returns:

  • (Object) —

    The extracted value



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 425

def self.map_response(obj, keys)
  val = obj
  begin
    keys.each do |key|
      val = if val.is_a? Array
              if key.to_i.to_s == key
                val[key.to_i]
              else
                val = nil
              end
            else
              val.fetch(key.to_sym)
            end
    end
  rescue NoMethodError, TypeError, IndexError
    val = nil
  end
  val
end

.process_complex_types_parameters(query_parameters, array_serialization) ⇒ Hash

Process complex types in query_params.

Parameters:

  • query_parameters (Hash) —

    The hash of query parameters.

Returns:

  • (Hash) —

    array_serialization A hash with the processed query parameters.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 331

def self.process_complex_types_parameters(query_parameters, array_serialization)
  processed_params = {}
  query_parameters.each do |key, value|
    processed_params.merge!(ApiHelper.form_encode(value, key, formatting:
      array_serialization))
  end
  processed_params
end

.resolve_template_placeholders(placeholders, values, template) ⇒ Object

Updates all placeholders in the given message template with provided value. @@return [String] The resolved template value.

Parameters:

  • placeholders (List) —

    The placeholders that need to be searched and replaced in the given template value.

  • values (Hash|String) —

    The value which refers to the actual values to replace with.

  • template (String) —

    The template string containing placeholders.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 562

def self.resolve_template_placeholders(placeholders, values, template)
  values = values.map { |key, value| [key.to_s, value.to_s] }.to_h if values.is_a? Hash

  placeholders.each do |placeholder|
    extracted_value = ''
    if values.is_a? Hash
      # pick the last chunk then strip the last character (i.e. `}`) of the string value
      key = if placeholder.include? '.'
              placeholder.split('.')[-1].delete_suffix('}')
            else
              placeholder.delete_prefix('{').delete_suffix('}')
            end
      extracted_value = values[key] unless values[key].nil?
    else
      extracted_value = values unless values.nil?
    end
    template.gsub!(placeholder, extracted_value.to_s)
  end

  template
end

.resolve_template_placeholders_using_json_pointer(placeholders, value, template) ⇒ Object

Updates all placeholders in the given message template with provided value. @@return [String] The resolved template value.

Parameters:

  • placeholders (String) —

    The placeholders that need to be searched and replaced in the given template value.

  • value (String) —

    The dictionary containing the actual values to replace with.

  • template (String) —

    The template string containing placeholders.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 540

def self.resolve_template_placeholders_using_json_pointer(placeholders, value, template)
  placeholders.each do |placeholder|
    extracted_value = ''
    if placeholder.include? '#'
      # pick the 2nd chunk then remove the last character (i.e. `}`) of the string value
      node_pointer = placeholder.split('#')[1].delete_suffix('}')
      value_pointer = JsonPointerHelper.new(value, node_pointer, symbolize_keys: true)
      extracted_value = json_serialize(value_pointer.value) if value_pointer.exists?
    elsif !value.nil?
      extracted_value = json_serialize(value)
    end
    template.gsub!(placeholder, extracted_value)
  end

  template
end

.serializable_types ⇒ Object

Array of serializable types



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 523

def self.serializable_types
  [String, Numeric, TrueClass,
   FalseClass, Date, DateTime]
end

.serialize_array(key, array, formatting: 'indexed') ⇒ Object

Serializes an array parameter (creates key value pairs).

Parameters:

  • key (String) —

    The name of the parameter.

  • array (Array) —

    The value of the parameter.

  • formatting (String) (defaults to: 'indexed') —

    The format of the serialization.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 10

def self.serialize_array(key, array, formatting: 'indexed')
  tuples = []

  tuples += case formatting
            when 'csv'
              [[key, array.map { |element| CGI.escape(element.to_s) }.join(',')]]
            when 'psv'
              [[key, array.map { |element| CGI.escape(element.to_s) }.join('|')]]
            when 'tsv'
              [[key, array.map { |element| CGI.escape(element.to_s) }.join("\t")]]
            else
              array.map { |element| [key, element] }
            end
  tuples
end

.update_user_agent_value_with_parameters(user_agent, parameters) ⇒ Object

Replaces the template parameters in the given user-agent string. parameters.

Parameters:

  • user_agent (String) —

    The user_agent value to be replaced with the given

  • parameters (Hash) —

    The parameters to replace in the user_agent.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 130

def self.update_user_agent_value_with_parameters(user_agent, parameters)
  # perform parameter validation
  unless user_agent.instance_of? String
    raise ArgumentError, 'Given value for \"user_agent\" is
      invalid.'
  end

  # Return if there are no parameters to replace.
  return user_agent if parameters.nil?

  parameters.each do |key, val|
    if val.nil?
      replace_value = ''
    elsif val['value'].instance_of? Array
      if val['encode'] == true
        val['value'].map! { |element| ERB::Util.url_encode(element.to_s) }
      else
        val['value'].map!(&:to_s)
      end
      replace_value = val['value'].join('/')
    else
      replace_value = if val['encode'] == true
                        ERB::Util.url_encode(val['value'].to_s)
                      else
                        val['value'].to_s
                      end
    end

    # Find the template parameter and replace it with its value.
    user_agent = user_agent.gsub(key.to_s, replace_value)
  end
  user_agent
end

.valid_type?(value, type_callable, is_model_hash: false, is_inner_model_hash: false) ⇒ Boolean

Checks if a value or all values in a nested structure satisfy a given type condition.

Parameters:

  • value (Object) —

    The value or nested structure to be checked.

  • type_callable (Proc) —

    A callable object that defines the type condition.

  • is_model_hash (Boolean) (defaults to: false) —

    A flag to identify the provided value is a model value hash.

  • is_inner_model_hash (Boolean) (defaults to: false) —

    A flag to identify the provided value is a hash of model value hash.

Returns:

  • (Boolean) —

    Returns true if the value or all values in the structure satisfy the type condition, false otherwise.



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# File 'lib/apimatic-core/utilities/api_helper.rb', line 268

def self.valid_type?(value, type_callable, is_model_hash: false, is_inner_model_hash: false)
  if value.is_a?(Array)
    value.all? do |item|
      valid_type?(item, type_callable,
                  is_model_hash: is_model_hash,
                  is_inner_model_hash: is_inner_model_hash)
    end
  elsif value.is_a?(Hash) && (!is_model_hash || is_inner_model_hash)
    value.values.all? do |item|
      valid_type?(item, type_callable, is_model_hash: is_model_hash)
    end
  else
    !value.nil? && type_callable.call(value)
  end
end