rantav

A few show tricks to find slow queries in mongodb

Enable profiling

First, you have to enable profiling

> db.setProfilingLevel(1)

Now let it run for a while. It collects the slow queries ( > 100ms) into a capped collections, so queries go in and if it's full, old queries go out, so don't be surprised that it's a moving target...

engram-design

define([
  'marionette',
  'templates'
], function(Marionette, Templates) {
  
  var app = new Marionette.Application({
    root: '/',
    templates: Templates
  });
  	

carlhoerberg

var amqp = require('amqplib/callback_api');

// if the connection is closed or fails to be established at all, we will reconnect
var amqpConn = null;
function start() {
  amqp.connect(process.env.CLOUDAMQP_URL + "?heartbeat=60", function(err, conn) {
    if (err) {
      console.error("[AMQP]", err.message);
      return setTimeout(start, 1000);
    }

heschong

/*
 * This is a simple pattern for a flexible publication mechanism, for feedback purposes
 */




// ... on client and server
MyCollection = new Mongo.Collection('mycollection');

wojteklu

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

manigandham

React

• Ant Design - https://ant.design/
• Atlaskit by Atlassian - https://atlaskit.atlassian.com/
• Base Web by Uber - https://baseweb.design/
• Blueprint by Palantir - https://blueprintjs.com/
• Carbon by IBM - https://www.carbondesignsystem.com/
• Elastic UI by Elastic - https://elastic.github.io/eui/
• Evergreen by Segment - https://evergreen.segment.com/

tomhicks

import React from "react"
import {InternalRoutes} from "types/routes"
import Link, {LinkProps} from "next/link"

export function InternalLink({
  routeName,
  routeParams,
  ...linkProps
}: Omit<LinkProps, "href" | "as"> &
  InternalRoutes & {children: React.ReactChild}) {

milancermak

import { PrismaClient } from '@prisma/client'
import Shopify from '@shopify/shopify-api'
import { Session } from '@shopify/shopify-api/dist/auth/session';

const prisma = new PrismaClient({ log: ['info', 'warn', 'error'] })

async function storeCallback(session: Session): Promise<boolean> {
    const payload: { [key: string]: any } = { ...session }
    return prisma.appSession.upsert({
        create: { id: session.id, payload: payload },

ElGatoLoco

# This guide assumes that you're running MacOS and already have a fully synced Daedalus testnet wallet
# For mainnet some minor tweaks are required

# The line below assumes the default location for the testnet wallet at the time of writing this guide
# If your node socket is located somewhere else, you should be able to finding by inspecting the running processes on your machine
export CARDANO_NODE_SOCKET_PATH=~/Library/Application\ Support/Daedalus\ Testnet/cardano-node.socket

# Make testnet id available as environment variable; not needed for the mainnet
# This one is active at the time of writing this guide
export TESTNET_ID=1097911063

pesterhazy

So you want to write a sync system for a web app with offline and realtime support? Good luck. You might find the following resources useful.

Overview articles

• Database in a browser, a spec (Stepan Parunashvili)

  What problem are we trying to solve with a sync system?

• The web of tomorrow (Nikita Prokopov)