redis-simple-rpc

Redis Simple RPC

This is a very simple rpc client / server using Redis lists. It suports async callbacks and streaming.

• It is not fault tolerant
• It is not production ready
• It probably works fine for simple cases

Travis CI Build Status

Usage

Both the client and worker for node.js use proxy objects, making them as easy to use as local functions.

Defining a worker:

redisConnection = {
	host: '127.0.0.1',
	port: 1234
	options: {}
};
new Worker(namespace, redisConnection);

Example:

var Worker = require('redis-simple-rpc').Worker,
	calc = new Worker('calc');

calc.add = function (a, b, cb) {
	cb(null, a + b);
};

Defining a client:

new Client(namespace, clientId, redisConnection, timeout);

Example:

var Client = require('redis-simple-rpc').Client,
	calc = new Client('calc');

calc.add(1, 2, function (err, answer) {
	if (err) {
		throw err;
	}
	assert.equal(1 + 2, answer);
});

Redis Errors

The node redis driver will throw an exception if a client does not have any listeners on error. Each client or worker has two redis clients.

var Client = require('redis-simple-rpc').Client,
		calc = new Client('calc'),
		logError;

logError = function () {
	return console.error.apply(console, arguments);
};

calc.clients.sender.on('error', logError);
calc.clients.receiver.on('error', logError);

TODO

1. Add clients / workers for other languages
2. Use brpoplpush and Redis slaves for fault tolerance
3. Capacity awareness