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![amqplib
var amqp = require('amqplib/callback_api');
amqp.connect('amqp://localhost', function(err, conn) {
conn.createChannel(function(err, ch) {
var q = 'hello';
ch.assertQueue(q, {durable: false});
ch.sendToQueue(q, new Buffer('Hello World!'));
console.log(" [x] Sent 'Hello World!'");
});
});
in RabbitMQ Tutorials](https://image.slidesharecdn.com/asynchronousmicroservicesinnodejs-151123102512-lva1-app6891/85/Asynchronous-Microservices-in-nodejs-20-320.jpg)
![amqplib
var amqp = require('amqplib/callback_api');
amqp.connect('amqp://localhost', function(err, conn) {
conn.createChannel(function(err, ch) {
var q = 'hello';
ch.assertQueue(q, {durable: false});
console.log(" [*] Waiting for messages in %s.", q);
ch.consume(q, function(msg) {
console.log(" [x] Received %s”,
msg.content.toString());
}, {noAck: true});
});
});
in RabbitMQ Tutorials](https://image.slidesharecdn.com/asynchronousmicroservicesinnodejs-151123102512-lva1-app6891/85/Asynchronous-Microservices-in-nodejs-21-320.jpg)
Uploaded byBruno Pedro
Asynchronous Microservices in nodejs
The document discusses asynchronous microservices in Node.js, emphasizing the advantages of a microservices architecture such as decentralization and being organized around business capabilities. It covers both synchronous and asynchronous communication topologies, highlighting the use of the Advanced Message Queuing Protocol (AMQP) for loosely coupled systems. Code examples illustrate how to implement message queues and consuming messages in RabbitMQ, along with patterns like work queues and webhooks.
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Similar to Asynchronous Microservices in nodejs
Asynchronous Microservices in nodejs
- 1.
- 2. Summary • why microservices •synchronous vs asynchronous topologies • broker approach • code examples • patterns
- 3. Why Microservices • organisedaround business capabilities • following a decentralised governance • and a decentralised data management • automated infrastructure • designed for failure
- 4. in Martin Fowler,"Microservices"
- 5. Microservices • loosely coupled •with a specific responsibility • designed around business needs • connected through a common interface
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- 17. AMQP • Advanced MessageQueueing Protocol • interoperable: loosely coupled clients and servers • advanced publish and subscribe • transactional, if needed • supported by node.js
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- 20. amqplib var amqp =require('amqplib/callback_api'); amqp.connect('amqp://localhost', function(err, conn) { conn.createChannel(function(err, ch) { var q = 'hello'; ch.assertQueue(q, {durable: false}); ch.sendToQueue(q, new Buffer('Hello World!')); console.log(" [x] Sent 'Hello World!'"); }); }); in RabbitMQ Tutorials
- 21. amqplib var amqp =require('amqplib/callback_api'); amqp.connect('amqp://localhost', function(err, conn) { conn.createChannel(function(err, ch) { var q = 'hello'; ch.assertQueue(q, {durable: false}); console.log(" [*] Waiting for messages in %s.", q); ch.consume(q, function(msg) { console.log(" [x] Received %s”, msg.content.toString()); }, {noAck: true}); }); }); in RabbitMQ Tutorials
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- 23. Patterns • work queue •pubsub system • webhook • message routing • backpressure • RPC
- 24. Asynchronous Microservices • looselycoupled • agile to changes • event based • organised around business capabilities • connected through the message broker AMQP
- 25. Wrap-up • microservices advantages •asynchronous over synchronous • broker approach • easy to implement • patterns
- 26. + Sean O’Connor Lead Engineer It'sgreat to see a tool like API Changelog come along. (…) as an API provider, it's always a challenge to communicate to users when changes happen. bpedro@apichangelog.com Get in touch! Bruno Pedro Thank you