https://github.com/wallyqs/racket-nats

A NATS client for Racket
https://github.com/wallyqs/racket-nats

Last synced: 8 days ago
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A NATS client for Racket

• Host: GitHub
• URL: https://github.com/wallyqs/racket-nats
• Owner: wallyqs
• Created: 2015-04-21T15:43:06.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2016-09-18T20:16:50.000Z (over 8 years ago)
• Last Synced: 2024-11-04T23:24:05.681Z (about 2 months ago)
• Language: Racket
• Homepage:
• Size: 13.7 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.org

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README

        
# -*- mode: org; mode: auto-fill -*-

#+TITLE: NATS Client for Racket

#+startup: showeverything

#+todo: todo:t

*status*: alpha, still a work in progress 

This is a very simple implementation of a NATS client for Racket

at the moment, implementation would change a lot.

*** Usage

Currently basic subscriptions and publishing of messages work as follows:

#+BEGIN_SRC racket

#lang racket

(require "../nats.rkt")

(define worker-response "{\"result\":~a}~n")

(define nats-io (nats-connect #:host "127.0.0.1" #:port 4222))

(printf "Subscribing to 'workers.double ~n")

(nats-sub "workers.double"

          (lambda (msg)

            (define result (* 2 (string->number (bytes->string/utf-8 msg))))

            (nats-pub "workers.results" (format worker-response result) nats-io)) nats-io)

#+END_SRC

*** To do

- [ ] Implement inboxes for the request pattern

- [ ] Reconnect and graceful failures

- [ ] Convert into a module

- [ ] Logging facilities

- [ ] Add testing framework

- [ ] Cluster mode

- [X] Authentication

*** License

#+BEGIN_SRC racket :tangle nats.rkt

;; 

;;     (The MIT License)

;; 

;;  Copyright (c) 2015 Waldemar Quevedo. All rights reserved.

;; 

;; Permission is hereby granted, free of charge, to any person

;;  obtaining a copy of this software and associated documentation

;;  files (the "Software"), to deal in the Software without

;;  restriction, including without limitation the rights to use, copy,

;;  modify, merge, publish, distribute, sublicense, and/or sell copies

;;  of the Software, and to permit persons to whom the Software is

;;  furnished to do so, subject to the following conditions:

;; 

;; The above copyright notice and this permission notice shall be

;; included in all copies or substantial portions of the Software.

;; 

;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

;; BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

;; ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

;; CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

;; SOFTWARE.

;;

#+END_SRC