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mirror of https://github.com/namibia/awesome-cheatsheets.git synced 2024-07-21 19:30:35 +00:00

Moleculer.js updates

This commit is contained in:
Julien Le Coupanec 2018-03-10 17:11:24 -08:00
parent 6ac16cc7e2
commit 387d6c3d48

View File

@ -5,18 +5,22 @@
* Version: 0.12.x
* ******************************************************************************************* */
/* *******************************************************************************************
* Install Moleculer
* ******************************************************************************************* */
```bash
npm i moleculer
```
/* *******************************************************************************************
* SERVICE BROKER OPTIONS
* ******************************************************************************************* */
// All ServiceBroker options with default values
const broker = new ServiceBroker({
namespace: "", // Namespace for node segmentation
@ -73,10 +77,12 @@ const broker = new ServiceBroker({
ContextFactory: null // Custom Context factory class
});
/* *******************************************************************************************
* SERVICE BROKER METHODS
* ******************************************************************************************* */
// Broker properties
broker.Promise // Pointer to Bluebird Promise lib
broker.namespace // Namespace from options
@ -121,10 +127,12 @@ broker.sendPing(nodeID); // Ping a remote node
broker.MOLECULER_VERSION // Version number of Moleculer lib
broker.PROTOCOL_VERSION // Version number of Moleculer protocol
/* *******************************************************************************************
* BROKER SERVICE CALLS
* ******************************************************************************************* */
// Call the "users.get" service with params
broker.call("users.get", { id: 150 }).then(user => console.log(user));
@ -150,10 +158,12 @@ const res = await broker.mcall({
});
console.log(res.posts, res.users);
/* *******************************************************************************************
* BROKER EVENTS
* ******************************************************************************************* */
// Send a balanced event with payload
broker.emit("user.created", { user: user });
@ -166,11 +176,13 @@ broker.broadcast("user.created", { user: user });
// Send a broadcast event only for "mail" and "payment" services (all instances)
broker.broadcast("user.created", { user: user }, ["mail", "payment"]);
/* *******************************************************************************************
* NATS TRANSPORTER
* Requirement: `npm i nats`
* ******************************************************************************************* */
// Default options
const broker = new ServiceBroker({
transporter: "NATS"
@ -208,11 +220,13 @@ const broker = new ServiceBroker({
}
});
/* *******************************************************************************************
* REDIS TRANSPORTER
* Requirement: `npm i ioredis`
* ******************************************************************************************* */
// Default options
const broker = new ServiceBroker({
transporter: "Redis"
@ -243,6 +257,7 @@ const broker = new ServiceBroker({
* Requirement: `npm i mqtt`
* ******************************************************************************************* */
// Default options
const broker = new ServiceBroker({
transporter: "MQTT"
@ -266,11 +281,13 @@ const broker = new ServiceBroker({
}
});
/* *******************************************************************************************
* AMQP TRANSPORTER
* Requirement: `npm i amqplib`
* ******************************************************************************************* */
// Default options
const broker = new ServiceBroker({
transporter: "AMQP"
@ -293,11 +310,13 @@ const broker = new ServiceBroker({
}
});
/* *******************************************************************************************
* KAFKA TRANSPORTER
* Requirement: `npm i kafka-node`
* ******************************************************************************************* */
// Default options
const broker = new ServiceBroker({
transporter: "Kafka"
@ -339,11 +358,13 @@ const broker = new ServiceBroker({
}
});
/* *******************************************************************************************
* NATS STREAMING TRANSPORTER
* Requirement: `npm i node-nats-streaming`
* ******************************************************************************************* */
// Default options
const broker = new ServiceBroker({
transporter: "STAN"
@ -365,11 +386,13 @@ const broker = new ServiceBroker({
}
});
/* *******************************************************************************************
* TCP STREAMING TRANSPORTER
* No requirements
* ******************************************************************************************* */
// Default options
const broker = new ServiceBroker({
transporter: "TCP"
@ -444,6 +467,7 @@ const broker = new ServiceBroker({
* http://moleculer.services/docs/cachers.html
* ******************************************************************************************* */
// Memory cacher
const broker = new ServiceBroker({
cacher: "Memory"
@ -489,10 +513,12 @@ const broker = new ServiceBroker({
}
});
/* *******************************************************************************************
* Manual caching
* ******************************************************************************************* */
// Save to cache
broker.cacher.set("mykey.a", { a: 5 });
@ -508,11 +534,13 @@ broker.cacher.clean("mykey.*");
// Clean all entries
broker.cacher.clean();
/* *******************************************************************************************
* SERIALIZER
* http://moleculer.services/docs/serializers.html
* ******************************************************************************************* */
// JSON serializer (default)
const broker = new ServiceBroker({
serializer: "JSON"
@ -533,10 +561,12 @@ const broker = new ServiceBroker({
serializer: "MsgPack"
});
/* *******************************************************************************************
* STRATEGY
* ******************************************************************************************* */
// Round-robin strategy (default)
const broker = new ServiceBroker({
registry: {
@ -569,11 +599,13 @@ const broker = new ServiceBroker({
}
});
/* *******************************************************************************************
* LOGGER
* http://moleculer.services/docs/logger.html
* ******************************************************************************************* */
// Logger methods
broker.logger.fatal();
broker.logger.error();
@ -602,10 +634,12 @@ const broker = new ServiceBroker({
logger: bindings => logger.child(bindings)
});
/* *******************************************************************************************
* SERVICE SCHEMA
* ******************************************************************************************* */
module.exports = {
// Name
name: "greeter",
@ -673,10 +707,12 @@ module.exports = {
}
};
/* *******************************************************************************************
* SERVICE
* ******************************************************************************************* */
this.name // Name of service
this.version // Version of service
this.settings // Settings of service
@ -687,10 +723,12 @@ this.logger // Logger instance
this.actions // Actions of service.
this.waitForServices // Pointer to broker.waitForServices method
/* *******************************************************************************************
* CONTEXT
* ******************************************************************************************* */
ctx.id // Context ID
ctx.broker // Broker instance
ctx.action // Action definition