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lib/API/Eulerian/EDW/Request.pm  view on Meta::CPAN

#
# @brief Create new HTTP Headers.
#
# @param $class - API::Eulerian::EDW::HTTP class.
#
# @return HTTP Headers.
#
sub headers
{
  return HTTP::Headers->new();
}
#
# @brief Test if the content type of given HTTP response is a
#        JSON format.
#
# @param $class - API::Eulerian::EDW::Request Class.
# @param $response - HTTP response.
#
# @return 1 - Content type is JSON.
# @return 0 - Content type isnt JSON.
#
sub is_json
{
  my ( $class, $response ) = @_;
  my $type;

  # Get content type value from HTTP response
  $type = $response->header( 'content-type' );
  if( defined( $type ) ) {
    # Split content type into an array.
    my @subtypes = split( '; ', $type );
    # Iterate on subtypes entries
    foreach my $subtype ( @subtypes ) {
      # Test if subtype is JSON format
      if( $subtype eq 'application/json' ) {
        return 1;
      }
    }
  }

  return 0;
}
#
# @brief Get JSON object from HTTP response.
#
# @param $class - API::Eulerian::EDW::Request class.
# @param $response - HTTP response.
#
# @return JSON object.
#
sub json
{
  my ( $class, $response ) = @_;
  my $data = undef;

  if( $class->is_json( $response ) ) {
    $data = $response->decoded_content;
    if( defined( $data ) ) {
      chomp( $data );
      if( length( $data ) > 0 ) {
        $data = encode( 'utf-8', $data );
        $data = decode_json( $data );
       } else {
        $data = undef;
       }
    }
  }

  return $data;
}
#
# @brief Do HTTP Get on given URL.
#
# @param $class - API::Eulerian::EDW::HTTP class.
# @param $url - Remote URL.
# @param $headers - HTTP::Headers.
# @param $file - Local file path.
#
# @return API::Eulerian::EDW::Status instance.
#
sub get
{
  my ( $class, $url, $headers, $file ) = @_;
  return $class->_request( 'GET', $url, $headers, undef, undef, $file );
}
#
# @brief Do HTTP Post on given URL.
#
# @param $class - API::Eulerian::EDW::HTTP class.
# @param $url - Remote URL.
# @param $headers - HTTP::Headers.
# @param $what - Request Data.
# @param $type - Request Data Type.
#
# @return API::Eulerian::EDW::Status instance.
#
sub post
{
  my ( $class, $url, $headers, $what, $type ) = @_;
  return $class->_request( 'POST', $url, $headers, $what, $type );
}
#
# @brief Send HTTP request on given url.
#
# @param $class - API::Eulerian::EDW Request class.
# @param $method - HTTP method.
# @param $url - Remote URL.
# @param $headers - HTTP headers.
# @param $what - Data of POST request.
# @param $type - Data type of POST request
# @param $file - Local file path used to store HTTP reply.
#
# @return API::Eulerian::EDW::Status instance.
#
use Data::Dumper;
sub _request
{
  my ( $class, $method, $url, $headers, $what, $type, $file ) = @_;
  my $status = API::Eulerian::EDW::Status->new();
  my $endpoint;
  my $request;