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 can emit the following events.
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.
previous
my $previous = $tx->previous;
$tx = $tx->previous(Mojo::Transaction->new);Previous transaction that triggered this followup transaction.
# Path of previous request
say $tx->previous->req->url->path;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;Transaction closed client-side.
client_read
$tx->client_read($chunk);Read and process data client-side. Meant to be overloaded in a subclass.
client_write
my $chunk = $tx->client_write;Write data client-side. 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 $success = $tx->is_finished;Check if transaction is finished.
is_websocket
my $false = $tx->is_websocket;False.
is_writing
my $success = $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.
server_read
$tx->server_read($chunk);Read and process data server-side. Meant to be overloaded in a subclass.
server_write
my $chunk = $tx->server_write;Write data server-side. 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.