NAME

Mojo::Client - Async IO HTTP 1.1 And WebSocket Client

SYNOPSIS

    use Mojo::Client;
    my $client = Mojo::Client->new;

    # Grab the latest Mojolicious release :)
    my $latest = 'http://mojolicious.org/Mojolicious-latest.tar.gz';
    print $client->get($latest)->res->body;

    # Quick JSON request
    my $trends = 'http://search.twitter.com/trends.json';
    print $client->get($trends)->res->json->{trends}->[0]->{name};

    # Extract data from HTML and XML resources
    print $client->get('mojolicious.org')->res->dom->at('title')->text;

    # Scrape the latest headlines from a news site
    my $news = 'http://digg.com';
    $client->get($news)->res->dom->find("h3 > a.offsite")->each(sub {
        print shift->text . "\n";
    });

    # Form post with exception handling
    my $cpan   = 'http://search.cpan.org/search';
    my $search = {q => 'mojo'};
    my $tx     = $client->post_form($cpan => $search);
    if (my $res = $tx->success) { print $res->body }
    else {
        my ($message, $code) = $tx->error;
        print "Error: $message";
    }

    # Parallel requests
    my $callback = sub { print shift->res->body };
    $client->get('http://mojolicious.org' => $callback);
    $client->get('http://search.cpan.org' => $callback);
    $client->process;

    # Websocket request
    $client->websocket(
        'ws://websockets.org:8787' => sub {
            my $client = shift;
            $client->receive_message(
                sub {
                    my ($client, $message) = @_;
                    print "$message\n";
                    $client->finish;
                }
            );
            $client->send_message('hi there!');
        }
    )->process;

DESCRIPTION

Mojo::Client is a full featured async io HTTP 1.1 and WebSocket client with IPv6, TLS, epoll and kqueue support.

Optional modules IO::KQueue, IO::Epoll, IO::Socket::INET6 and IO::Socket::SSL are supported transparently and used if installed.

ATTRIBUTES

Mojo::Client implements the following attributes.

app

    my $app = $client->app;
    $client = $client->app(MyApp->new);

A Mojo application to associate this client with. If set, local requests will be processed in this application.

    my $cookie_jar = $client->cookie_jar;
    $client        = $client->cookie_jar(Mojo::CookieJar->new);

Cookie jar to use for this clients requests, by default a Mojo::CookieJar object.

http_proxy

    my $proxy = $client->http_proxy;
    $client   = $client->http_proxy('http://sri:secret@127.0.0.1:8080');

Proxy server to use for HTTP and WebSocket requests.

https_proxy

    my $proxy = $client->https_proxy;
    $client   = $client->https_proxy('http://sri:secret@127.0.0.1:8080');

Proxy server to use for HTTPS and WebSocket requests.

ioloop

    my $loop = $client->ioloop;
    $client  = $client->ioloop(Mojo::IOLoop->new);

Loop object to use for io operations, by default a Mojo::IOLoop object will be used.

keep_alive_timeout

    my $keep_alive_timeout = $client->keep_alive_timeout;
    $client                = $client->keep_alive_timeout(15);

Timeout in seconds for keep alive between requests, defaults to 15.

log

    my $log = $client->log;
    $client = $client->log(Mojo::Log->new);

A Mojo::Log object used for logging, by default the application log will be used.

max_keep_alive_connections

    my $max_keep_alive_connections = $client->max_keep_alive_connections;
    $client                        = $client->max_keep_alive_connections(5);

Maximum number of keep alive connections that the client will retain before it starts closing the oldest cached ones, defaults to 5.

max_redirects

    my $max_redirects = $client->max_redirects;
    $client           = $client->max_redirects(3);

Maximum number of redirects the client will follow before it fails, defaults to 0.

tls_ca_file

    my $tls_ca_file = $client->tls_ca_file;
    $client         = $client->tls_ca_file('/etc/tls/cacerts.pem');

TLS certificate authority file to use, defaults to the MOJO_CA_FILE environment variable. Note that IO::Socket::SSL must be installed for HTTPS support.

tls_verify_cb

    my $tls_verify_cb = $client->tls_verify_cb;
    $client           = $client->tls_verify_cb(sub {...});

Callback to verify your TLS connection, by default the client will accept most certificates. Note that IO::Socket::SSL must be installed for HTTPS support.

tx

    $client->tx;

The last finished transaction, only available from callbacks.

websocket_timeout

    my $websocket_timeout = $client->websocket_timeout;
    $client               = $client->websocket_timeout(300);

Timeout in seconds for WebSockets to be idle, defaults to 300.

METHODS

Mojo::Client inherits all methods from Mojo::Base and implements the following new ones.

new

    my $client = Mojo::Client->new;

Construct a new Mojo::Client object. Use singleton if you want to share keep alive connections with other clients.

async

    my $async = $client->async;

Clone client instance and start using the global shared Mojo::IOLoop singleton if it is running. Note that all cloned clients have their own keep alive connection queue, so you can quickly run out of file descriptors with too many active clients.

build_form_tx

    my $tx = $client->build_form_tx('http://kraih.com/foo' => {test => 123});
    my $tx = $client->build_form_tx(
        'http://kraih.com/foo',
        'UTF-8',
        {test => 123}
    );
    my $tx = $client->build_form_tx(
        'http://kraih.com/foo',
        {test => 123},
        {Expect => 'fun'}
    );
    my $tx = $client->build_form_tx(
        'http://kraih.com/foo',
        'UTF-8',
        {test => 123},
        {Expect => 'fun'}
    );
    my $tx = $client->build_form_tx(
        'http://kraih.com/foo',
        {file => {file => '/foo/bar.txt'}}
    );
    my $tx = $client->build_form_tx(
        'http://kraih.com/foo',
        {file => {content => 'lalala'}}
    );
    my $tx = $client->build_form_tx(
        'http://kraih.com/foo',
        {myzip => {file => $asset, filename => 'foo.zip'}}
    );

Versatile transaction builder for forms.

    my $tx = $client->build_form_tx('http://kraih.com/foo' => {test => 123});
    $tx->res->body(sub { print $_[1] });
    $client->process($tx);

build_tx

    my $tx = $client->build_tx(GET => 'mojolicious.org');
    my $tx = $client->build_tx(POST => 'http://mojolicious.org');
    my $tx = $client->build_tx(
        GET => 'http://kraih.com' => {Connection => 'close'}
    );
    my $tx = $client->build_tx(
        POST => 'http://kraih.com' => {Connection => 'close'} => 'Hi!'
    );

Versatile general purpose transaction builder.

    # Streaming response
    my $tx = $client->build_tx(GET => 'http://mojolicious.org');
    $tx->res->body(sub { print $_[1] });
    $client->process($tx);

    # Custom socket
    my $tx = $client->build_tx(GET => 'http://mojolicious.org');
    $tx->connection($socket);
    $client->process($tx);

build_websocket_tx

    my $tx = $client->build_websocket_tx('ws://localhost:3000');

WebSocket transaction builder.

clone

    my $clone = $client->clone;

Clone client the instance. Note that all cloned clients have their own keep alive connection queue, so you can quickly run out of file descriptors with too many active clients.

delete

    my $tx  = $client->delete('http://kraih.com');
    my $tx  = $client->delete('http://kraih.com' => {Connection => 'close'});
    my $tx  = $client->delete(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!'
    );
    $client = $client->delete('http://kraih.com' => sub {...});
    $client = $client->delete(
        'http://kraih.com' => {Connection => 'close'} => sub {...}
    );
    $client = $client->delete(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!' => sub {...}
    );

Send a HTTP DELETE request.

detect_proxy

    $client = $client->detect_proxy;

Check environment variables for proxy information.

finish

    $client->finish;

Finish the WebSocket connection, only available from callbacks.

finished

    $client->finished(sub {...});

Callback signaling that peer finished the WebSocket connection, only available from callbacks.

    $client->finished(sub {
        my $client = shift;
    });

get

    my $tx  = $client->get('http://kraih.com');
    my $tx  = $client->get('http://kraih.com' => {Connection => 'close'});
    my $tx  = $client->get(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!'
    );
    $client = $client->get('http://kraih.com' => sub {...});
    $client = $client->get(
        'http://kraih.com' => {Connection => 'close'} => sub {...}
    );
    $client = $client->get(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!' => sub {...}
    );

Send a HTTP GET request.

    my $tx  = $client->head('http://kraih.com');
    my $tx  = $client->head('http://kraih.com' => {Connection => 'close'});
    my $tx  = $client->head(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!'
    );
    $client = $client->head('http://kraih.com' => sub {...});
    $client = $client->head(
        'http://kraih.com' => {Connection => 'close'} => sub {...}
    );
    $client = $client->head(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!' => sub {...}
    );

Send a HTTP HEAD request.

post

    my $tx  = $client->post('http://kraih.com');
    my $tx  = $client->post('http://kraih.com' => {Connection => 'close'});
    my $tx  = $client->post(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!'
    );
    $client = $client->post('http://kraih.com' => sub {...});
    $client = $client->post(
        'http://kraih.com' => {Connection => 'close'} => sub {...}
    );
    $client = $client->post(
        'http://kraih.com',
        {Connection => 'close'},
        'message body',
        sub {...}
    );
    $client = $client->post(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!' => sub {...}
    );

Send a HTTP POST request.

post_form

    my $tx  = $client->post_form('http://kraih.com/foo' => {test => 123});
    my $tx  = $client->post_form(
        'http://kraih.com/foo'
        'UTF-8',
        {test => 123}
    );
    my $tx  = $client->post_form(
        'http://kraih.com/foo',
        {test => 123},
        {Expect => 'fun'}
    );
    my $tx  = $client->post_form(
        'http://kraih.com/foo',
        'UTF-8',
        {test => 123},
        {Expect => 'fun'}
    );
    my $tx = $client->post_form(
        'http://kraih.com/foo',
        {file => {file => '/foo/bar.txt'}}
    );
    my $tx= $client->post_form(
        'http://kraih.com/foo',
        {file => {content => 'lalala'}}
    );
    my $tx = $client->post_form(
        'http://kraih.com/foo',
        {myzip => {file => $asset, filename => 'foo.zip'}}
    );
    $client = $client->post_form('/foo' => {test => 123}, sub {...});
    $client = $client->post_form(
        'http://kraih.com/foo',
        'UTF-8',
        {test => 123},
        sub {...}
    );
    $client = $client->post_form(
        'http://kraih.com/foo',
        {test => 123},
        {Expect => 'fun'},
        sub {...}
    );
    $client = $client->post_form(
        'http://kraih.com/foo',
        'UTF-8',
        {test => 123},
        {Expect => 'fun'},
        sub {...}
    );
    $client = $client->post_form(
        'http://kraih.com/foo',
        {file => {file => '/foo/bar.txt'}},
        sub {...}
    );
    $client = $client->post_form(
        'http://kraih.com/foo',
        {file => {content => 'lalala'}},
        sub {...}
    );
    $client = $client->post_form(
        'http://kraih.com/foo',
        {myzip => {file => $asset, filename => 'foo.zip'}},
        sub {...}
    );

Send a HTTP POST request with form data.

process

    $client = $client->process;
    $client = $client->process(@transactions);
    $client = $client->process(@transactions => sub {...});

Process all queued transactions. Will be blocking unless you have a global shared ioloop and use the async method.

put

    my $tx  = $client->put('http://kraih.com');
    my $tx  = $client->put('http://kraih.com' => {Connection => 'close'});
    my $tx  = $client->put(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!'
    );
    $client = $client->put('http://kraih.com' => sub {...});
    $client = $client->put(
        'http://kraih.com' => {Connection => 'close'} => sub {...}
    );
    $client = $client->put(
        'http://kraih.com' => {Connection => 'close'} => 'Hi!' => sub {...}
    );

Send a HTTP PUT request.

queue

    $client = $client->queue(@transactions);
    $client = $client->queue(@transactions => sub {...});

Queue a list of transactions for processing.

receive_message

    $client = $client->receive_message(sub {...});

Receive messages via WebSocket, only available from callbacks.

    $client->receive_message(sub {
        my ($client, $message) = @_;
    });

req

    my $req = $client->req;

The request object of the last finished transaction, only available from callbacks.

res

    my $res = $client->res;

The response object of the last finished transaction, only available from callbacks.

singleton

    my $client = Mojo::Client->singleton;

The global client object, used to access a single shared client instance from everywhere inside the process.

send_message

    $client = $client->send_message('Hi there!');

Send a message via WebSocket, only available from callbacks.

test_server

    my $port = $client->test_server;

Starts a test server for app if neccessary and returns the port number. Note that this method is EXPERIMENTAL and might change without warning!

websocket

    $client = $client->websocket('ws://localhost:3000' => sub {...});
    $client = $client->websocket(
        'ws://localhost:3000' => {'User-Agent' => 'Agent 1.0'} => sub {...}
    );

Open a WebSocket connection with transparent handshake.

SEE ALSO

Mojolicious, Mojolicious::Guides, http://mojolicious.org.