简单的 Perl websocket 客户端 [英] Simple Perl websocket client

问题描述

我正在尝试用 Perl 编写一个简单的 websocket 客户端:

I am trying to write a simple websocket client in Perl:

use Protocol::WebSocket::Client;

my $client = Protocol::WebSocket->new(url => 'ws://myserver:port');

# Sends a correct handshake header
$client->connect;

# Register on connect handler
$client->on(
    connect => sub {
        $client->write('hi there');
    }
);

# Parses incoming data and on every frame calls on_read
$client->read($reply);
print "$reply\n";

# Sends correct close header
$client->disconnect;

如文档中所示代码>Protocol::WebSocket::Client,但我收到消息:

as shown in the documentation for Protocol::WebSocket::Client, but I receive the message:

Can't locate object method "new" via package "Protocol::WebSocket" at ./webSocketClient.pl.

我做错了什么?

推荐答案

Protocol::WebSocket 是 WebSocket 协议.它不包含发送/接收数据的代码；它只是解析协议消息.

Protocol::WebSocket is a low-level implementation of WebSocket protocol. It doesn't contain the code that sends/receives data; it just parses the protocol messages.

您可能想查看将 Protocol::WebSocket 与各种模块一起使用的示例，请参阅 examples.一个很好的客户端示例在此模块附带的 wsconsole 实用程序中实现.

You might want to look into examples for using Protocol::WebSocket with various modules, see examples. A good client example is implemented in the wsconsole utility which comes with this module.

CPAN 上有几个高级模块实现了隐藏所有低级内容的 WebSockets，其中大多数使用 Protocol::WebSocket.看看 AnyEvent::WebSocket::Client 或 Net::Async::WebSocket::Client.

There are several high-level modules on CPAN that implement WebSockets hiding all low level stuff, and most of them use Protocol::WebSocket. Take a look at AnyEvent::WebSocket::Client or Net::Async::WebSocket::Client.

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