我们可以通过电子邮件接收 pubnub 通知吗？

Question

我们正在使用 NodeJS 发布消息。订阅者是否可以通过电子邮件接收消息？

Answer 1

在 Python 中通过电子邮件发送 PubNub 通知

Geremy 的回复也是您针对 Ruby 的解决方案，我也附上了 Python 解决方案。今天实现发送电子邮件的最佳方法是将 PubNub 与 SendGrid 等邮件服务提供商配对，您可以在 Python 中这样做。

你也可以用 Node.JS 做到这一点npm install sendgrid。下面是 Python 示例：

这是一个用法示例：

## Send Email + Publish
publish( 'my_channel', { 'some' : 'data' } )
## Done!

发布+Email方式publish(...)

复制/粘贴以下 python 以使您在发送电子邮件和发布 PubNub 消息时更轻松。我们正在与 SendGrid 电子邮件客户端配对，并附上 pip 存储库。

## -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
## Send Email and Publish Message on PubNub
## -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
import Pubnub    ## pip install Pubnub
import sendgrid  ## pip install sendgrid

def publish( channel, message ):
    # Email List
    recipients = [
        [ "john.smith@gmail.com", "John Smith" ],
        [ "jenn.flany@gmail.com", "Jenn Flany" ]
    ]

    # Info Callback
    def pubinfo(info): print(info)

    # Connection to SendGrid
    emailer = sendgrid.SendGridClient( 'user', 'pass',  secure=True )
    pubnub = Pubnub( publish_key="demo", subscribe_key="demo", ssl_on=True )

    # PubNub Publish
    pubnub.publish( channel, message, callback=pubinfo, error=pubinfo )

    # Email Message Payload
    email = sendgrid.Mail()
    email.set_from("PubNub <pubsub@pubnub.com>")
    email.set_subject("PubNub Message")
    email.set_html(json.dumps(message))
    email.set_text(json.dumps(message))

    ## Add Email Recipients
    for recipient in recipients:
        email.add_to("%s <%s>" % (recipient[1], recipient[0]))

    ## Send Email
    emailer.send(email)

Answer 2

目前，PubNub 支持原生 PubNub、GCM 和 APNS 消息端点。更多信息：http://www.pubnub.com/how-it-works/mobile/

如果您想将 PubNub 原生消息转发到电子邮件 (SMTP)，只需获取消息正文，根据需要对其进行解析，然后发送即可。

例如，Ruby 中的一些粗略伪代码可能如下所示：

require 'net/smtp'
require 'pubnub'

def SMTPForward(message_text)

# build the headers

    email = "From: Your Name <your@mail.address>
    To: Destination Address <someone@example.com>
    Subject: test message
    Date: Sat, 23 Jun 2001 16:26:43 +0900
    Message-Id: <unique.message.id.string@example.com>

    " + message_text # add the PN message text to the email body

    Net::SMTP.start('your.smtp.server', 25) do |smtp| # Send it!
        smtp.send_message email,
        'your@mail.address',
        'his_address@example.com'
    end        

@my_callback = lambda { |envelope| SMTPForward(envelope.msg) } # Fwd to email

pubnub.subscribe( # Subscribe on channel hello_world, fwd messages to my_callback
    :channel  => :hello_world,
    :callback => @my_callback
)

杰瑞米

Answer 3

receive PubNub messages as emails 有一种新方法。使用SendGrid BLOCK，您可以将PubNub Function 订阅到频道，并触发包含消息内容的电子邮件。 SendGrid 是一个使用 HTTP 请求发送电子邮件的 API。 PubNub 函数是 JavaScript 事件处理程序，它通过提供的通道在每个 PubNub 消息上执行。这是 SendGrid BLOCK 代码。确保您注册了 SendGrid，并将您的凭据提供给 PubNub Vault（API 密钥和密码的安全存储位置）。

// Be sure to place the following keys in MY SECRETS
// sendGridApiUser - User name for the SendGrid account.
// sendGridApiPassword - Password for the SendGrid account.
// senderAddress - Email address for the email sender.

const xhr = require('xhr');
const query = require('codec/query_string');
const vault = require('vault');

export default (request) => {
    const apiUrl = 'https://api.sendgrid.com/api/mail.send.json';

    let sendGridApiUser, sendGridApiPassword, senderAddress;

    return vault.get('sendGridApiUser').then((username) => {
        sendGridApiUser = username;
        return vault.get('sendGridApiPassword');
    }).then((password) => {
        sendGridApiPassword = password;
        return vault.get('sendGridSenderAddress');
    }).then((address) => {
        senderAddress = address;

        // create a HTTP GET request to the SendGrid API
        return xhr.fetch(apiUrl + '?' + query.stringify({
            api_user: sendGridApiUser,     // your sendgrid api username
            api_key: sendGridApiPassword,  // your sendgrid api password
            from: senderAddress,           // sender email address
            to: request.message.to,             // recipient email address
            toname: request.message.toname,     // recipient name
            subject: request.message.subject,   // email subject
            text: request.message.text +        // email text
            '\n\nInput:\n' + JSON.stringify(request.message, null, 2)
        })).then((res) => {
            console.log(res);
            return request.ok();
        }).catch((e) => {
            console.error('SendGrid: ', e);
            return request.abort();
        });
    }).catch((e) => {
        console.error('PubNub Vault: ', e);
        return request.abort();
    });
};