egg-amqplib-tf
v1.1.1
Published
Amqp plugin for egg with amqplib, Use connection manager to maintain MQ connection and support automatic reconnection!
Downloads
4
Maintainers
Readme
egg-amqplib-tf
This module adds AMQP connection manager on the basis of egg-amqplib Amqp plugin for egg with amqplib, Use connection manager to maintain MQ connection and support automatic reconnection!
Chinese
Install
$ npm i egg-amqplib-tf --save
Usage
// config/plugin.js
exports.amqplib = {
enable: true,
package: 'egg-amqplib-tf',
};
Configuration
// {app_root}/config/config.default.js
exports.amqplib = {
client: {
connectOptions: {
protocol: 'amqp',
hostname: 'localhost',
port: 5672,
username: 'guest',
password: 'guest',
locale: 'en_US',
frameMax: 0,
heartbeat: 0,
vhost: '/',
},
// socketOptions: {
// cert: certificateAsBuffer, // client cert
// key: privateKeyAsBuffer, // client key
// passphrase: 'MySecretPassword', // passphrase for key
// ca: [caCertAsBuffer], // array of trusted CA certs
// },
},
};
Example
// Ask the connection manager for a ChannelWrapper. Specify a setup function to
// run every time we reconnect to the broker.
const channelWrapper = await connection.createChannel({
json: true,
setup: (channel) => {
// `channel` here is a regular amqplib `ConfirmChannel`.
// Note that `this` here is the channelWrapper instance.
return channel.assertQueue('rxQueueName', {durable: true});
}
});
// Send some messages to the queue. If we're not currently connected, these will be queued up in memory
// until we connect. Note that `sendToQueue()` and `publish()` return a Promise which is fulfilled or rejected
// when the message is actually sent (or not sent.)
channelWrapper.sendToQueue('rxQueueName', {hello: 'world'})
.then(function() {
return console.log("Message was sent! Hooray!");
}).catch(function(err) {
return console.log("Message was rejected... Boo!");
});
// Sometimes it's handy to modify a channel at run time. For example, suppose you have a channel that's listening to one kind of message, and you decide you now also want to listen to some other kind of message. This can be done by adding a new setup function to an existing ChannelWrapper:
channelWrapper.addSetup(function(channel) {
return Promise.all([
channel.assertQueue("my-queue", { exclusive: true, autoDelete: true }),
channel.bindQueue("my-queue", "my-exchange", "create"),
channel.consume("my-queue", handleMessage)
])
});
API Document
More instructions here.
Questions & Suggestions
Please open an issue here.