NAME

Mojo::Transaction - Transaction base class

SYNOPSIS

  package Mojo::Transaction::MyTransaction;
  use Mojo::Base 'Mojo::Transaction';

  sub client_read  {...}
  sub client_write {...}
  sub server_read  {...}
  sub server_write {...}

DESCRIPTION

Mojo::Transaction is an abstract base class for transactions.

EVENTS

Mojo::Transaction inherits all events from Mojo::EventEmitter and can emit the following new ones.

connection

  $tx->on(connection => sub {
    my ($tx, $connection) = @_;
    ...
  });

Emitted when a connection has been assigned to transaction.

finish

  $tx->on(finish => sub {
    my $tx = shift;
    ...
  });

Emitted when transaction is finished.

resume

  $tx->on(resume => sub {
    my $tx = shift;
    ...
  });

Emitted when transaction is resumed.

ATTRIBUTES

Mojo::Transaction implements the following attributes.

kept_alive

  my $kept_alive = $tx->kept_alive;
  $tx            = $tx->kept_alive(1);

Connection has been kept alive.

local_address

  my $address = $tx->local_address;
  $tx         = $tx->local_address('127.0.0.1');

Local interface address.

local_port

  my $port = $tx->local_port;
  $tx      = $tx->local_port(8080);

Local interface port.

remote_port

  my $port = $tx->remote_port;
  $tx      = $tx->remote_port(8081);

Remote interface port.

req

  my $req = $tx->req;
  $tx     = $tx->req(Mojo::Message::Request->new);

HTTP request, defaults to a Mojo::Message::Request object.

res

  my $res = $tx->res;
  $tx     = $tx->res(Mojo::Message::Response->new);

HTTP response, defaults to a Mojo::Message::Response object.

METHODS

Mojo::Transaction inherits all methods from Mojo::EventEmitter and implements the following new ones.

client_close

  $tx->client_close;
  $tx->client_close(1);

Transaction closed client-side, no actual connection close is assumed by default, used to implement user agents.

client_read

  $tx->client_read($bytes);

Read data client-side, used to implement user agents. Meant to be overloaded in a subclass.

client_write

  my $bytes = $tx->client_write;

Write data client-side, used to implement user agents. Meant to be overloaded in a subclass.

connection

  my $connection = $tx->connection;
  $tx            = $tx->connection($connection);

Connection identifier or socket.

error

  my $err          = $tx->error;
  my ($err, $code) = $tx->error;

Error and code.

is_finished

  my $bool = $tx->is_finished;

Check if transaction is finished.

is_websocket

  my $false = $tx->is_websocket;

False.

is_writing

  my $bool = $tx->is_writing;

Check if transaction is writing.

resume

  $tx = $tx->resume;

Resume transaction.

remote_address

  my $address = $tx->remote_address;
  $tx         = $tx->remote_address('127.0.0.1');

Remote interface address.

server_close

  $tx->server_close;

Transaction closed server-side, used to implement web servers.

server_read

  $tx->server_read($bytes);

Read data server-side, used to implement web servers. Meant to be overloaded in a subclass.

server_write

  my $bytes = $tx->server_write;

Write data server-side, used to implement web servers. Meant to be overloaded in a subclass.

success

  my $res = $tx->success;

Returns the Mojo::Message::Response object (res) if transaction was successful or undef otherwise. Connection and parser errors have only a message in error, 400 and 500 responses also a code.

  # Sensible exception handling
  if (my $res = $tx->success) { say $res->body }
  else {
    my ($err, $code) = $tx->error;
    say $code ? "$code response: $err" : "Connection error: $err";
  }

Error messages can be accessed with the error method of the transaction object.

SEE ALSO

Mojolicious, Mojolicious::Guides, http://mojolicio.us.

cpanm Mojolicious

perl -MCPAN -e shell
install Mojolicious