TaskRelay

A library to run tasks on remote servers. Currently only has a Python 3.5 server and a Node.js client.

You can pass in multiple inputs and get back multiple outputs. See the examples to learn how to do this. You can also have multiple servers and the client will choose one to connect to.

All data is sent as binary through WebSockets. Read the specification for more information.

Installation

Python 3.5

pip3 install taskrelay

Node.js

npm install taskrelay

Supported Data Types

string
float
binary
integer
boolean

Python 3.5 Server Example

import taskrelay

def task(parameter):
    # Do something with parameter here
    return_value = 'example'
    return {'return_value': return_value}

server = taskrelay.Server()

server.create_task(
    name = 'example_task',
    inputs = {'parameter': 'float'}, # See supported data types
    outputs = {'return_value': 'string'},
    function = task)

server.start_server('localhost', 1234)

Node.js Client Example

const taskrelay = require('taskrelay');

client = new taskrelay.Client([
  ['127.0.0.1', 1234],
  ['127.0.0.1', 5678] // Only one of these will be used
]);

client.connect((err, serverInfo) => {
  if (err) {
    console.error(err);
  } else {
    console.log(JSON.stringify(serverInfo, null, 2));

    client.runTask('example_task', { parameter: 1.234 }, (err, results) => {
      if (err) {
        console.error(err);
      } else {
        console.log(results);
      }
    });
  }
});