scttnlsn

Pub/sub with MongoDB and Node.js

Setup:

$ mongo
> use pubsub
> db.createCollection('messages', { capped: true, size: 100000 })
> db.messages.insert({})

scttnlsn

package main

import (
	"bufio"
	"flag"
	"fmt"
	"net"
	"strconv"
	"strings"
	"time"

scttnlsn

import React from 'react';
import ReactDOM from 'react-dom';

function html([type, props, ...children]) {
  return React.createElement(type, props, ...children.map((child) => {
    if (Array.isArray(child)) {
      return html(child);
    } else {
      return child;
    }

scttnlsn

use std::collections::hash_map::{Entry, HashMap};
use std::io::{self, BufRead, BufReader, Write};
use std::net::{TcpListener, TcpStream, ToSocketAddrs};
use std::sync::{
    Arc,
    mpsc::{self, Sender, Receiver},
};
use std::thread::{self};

#[derive(Debug)]

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(defn debounce [in ms]
  (let [out (chan)]
    (go-loop [last-val nil]
      (let [val (if (nil? last-val) (<! in) last-val)
            timer (timeout ms)
            [new-val ch] (alts! [in timer])]
        (condp = ch
          timer (do (>! out val) (recur nil))
          in (recur new-val))))
    out))

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git-store

$ git init mystore
$ cd mystore

$ git store set foo "this is foo"
$ git store get foo
this is foo

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# pip install spidev RPI.GPIO
# git clone https://github.com/etrombly/RFM69.git
#
# 19 	MOSI
# 21 	MISO
# 23 	SCK
# 22 	DI00
# 24 	NSS

import time

scttnlsn

### Keybase proof

I hereby claim:

  * I am scttnlsn on github.
  * I am scttnlsn (https://keybase.io/scttnlsn) on keybase.
  * I have a public key ASB9vyD2EVSPOPFZSG40S9RvkY9urio90LlnLsBacf9Z5go

To claim this, I am signing this object:

scttnlsn

--------------------------------------------------
--- SETUP
--------------------------------------------------

\set ON_ERROR_STOP true

CREATE TABLE IF NOT EXISTS migrations (
    name CHAR VARYING PRIMARY KEY,
    timestamp TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT now()
);

scttnlsn

require 'mongoid'
require 'sinatra'

require_relative 'resource'

class Example
  include Mongoid::Document
  
  field :name
  field :created, :type => DateTime